Ford Explorer: Automatic Transmission - 10-Speed Automatic Transmission – 10R60 / Diagnosis and Testing - DTC Chart and Pinpoint Tests - 2.3L EcoBoost (201kW/273PS)

Ford Explorer 2020-2022 Service Manual / Powertrain / Automatic Transmission / Automatic Transmission - 10-Speed Automatic Transmission – 10R60 / Diagnosis and Testing - DTC Chart and Pinpoint Tests - 2.3L EcoBoost (201kW/273PS)

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


  Diagnostic Trouble Code Chart


Module   DTC Description Action
  PCM P0218:00 Transmission Fluid Temperature Sensor "A" Over Temperature Condition: No Sub Type Information   GO to Pinpoint Test J
  PCM P0657:00 Actuator Supply Voltage "A"Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P0702:00 Transmission Control System Electrical: No Sub Type Information   GO to Pinpoint Test K
  PCM P0706:00 Transmission Range Sensor "A" Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test C
  PCM P0707:00 Transmission Range Sensor "A" Circuit Low: No Sub Type Information   GO to Pinpoint Test C
  PCM P0708:00 Transmission Range Sensor "A" Circuit High: No Sub Type Information   GO to Pinpoint Test C
  PCM P0709:00 Transmission Range Sensor "A" Circuit Intermittent: No Sub Type Information   GO to Pinpoint Test C
  PCM P0710:00 Transmission Fluid Temperature Sensor "A" Circuit: No Sub Type Information   GO to Pinpoint Test B
  PCM P0711:00 Transmission Fluid Temperature Sensor "A" Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test B
  PCM P0712:00 Transmission Fluid Temperature Sensor "A" Circuit Low: No Sub Type Information   GO to Pinpoint Test B
  PCM P0713:00 Transmission Fluid Temperature Sensor "A" Circuit High: No Sub Type Information   GO to Pinpoint Test B
  PCM P0715:00 TSS Sensor Circuit: No Sub Type Information   GO to Pinpoint Test D
  PCM P0716:00 TSS Sensor Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test H
  PCM P0717:00 TSS Sensor Circuit No Signal: No Sub Type Information   GO to Pinpoint Test D
  PCM P0718:00 TSS Sensor "A" Circuit Intermittent: No Sub Type Information   GO to Pinpoint Test D
  PCM P0720:00 OSS Sensor Circuit: No Sub Type Information   GO to Pinpoint Test D
  PCM P0721:00 OSS Sensor Circuit Range Performance: No Sub Type Information   GO to Pinpoint Test H
  PCM P0722:00 OSS Sensor Circuit No Signal: No Sub Type Information   GO to Pinpoint Test D
  PCM P0723:00 OSS Sensor "A" Circuit Intermittent: No Sub Type Information   GO to Pinpoint Test D
  PCM P0729:00 Gear 6 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test Q
  PCM P0731:00 Gear 1 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test L
  PCM P0732:00 Gear 2 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test M
  PCM P0733:00 Gear 3 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test N
  PCM P0734:00 Gear 4 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test O
  PCM P0735:00 Gear 5 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test P
  PCM P0736:00 Reverse Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test R
  PCM P0740:00 Torque Converter Clutch Solenoid Circuit/Open: No Sub Type Information   GO to Pinpoint Test G
  PCM P0741:00 Torque Converter Clutch Solenoid Circuit Performance Stuck Off: No Sub Type Information   GO to Pinpoint Test S
  PCM P0743:00 Torque Converter Clutch Solenoid Circuit Electrical: No Sub Type Information   GO to Pinpoint Test G
  PCM P0748:00 Pressure Control Solenoid "A" Electrical: No Sub Type Information   GO to Pinpoint Test G
  PCM P0751:00 Shift Solenoid "A" Performance/Stuck Off: No Sub Type Information   GO to Pinpoint Test X
  PCM P0752:00 Shift Solenoid "A" Stuck On: No Sub Type Information   GO to Pinpoint Test Y
  PCM P0753:00 Shift Solenoid "A" Electrical: No Sub Type Information   GO to Pinpoint Test A
  PCM P0754:00 Shift Solenoid "A" Intermittent: No Sub Type Information   GO to Pinpoint Test A
  PCM P0756:00 Shift Solenoid "B" Performance/Stuck Off: No Sub Type Information   GO to Pinpoint Test X
  PCM P0757:00 Shift Solenoid "B" Stuck On: No Sub Type Information   GO to Pinpoint Test Y
  PCM P0758:00 Shift Solenoid "B" Electrical: No Sub Type Information   GO to Pinpoint Test A
  PCM P0759:00 Shift Solenoid "B" Intermittent: No Sub Type Information   GO to Pinpoint Test A
  PCM P0761:00 Shift Solenoid "C" Performance/Stuck Off: No Sub Type Information   GO to Pinpoint Test X
  PCM P0762:00 Shift Solenoid "C" Stuck On: No Sub Type Information   GO to Pinpoint Test Y
  PCM P0763:00 Shift Solenoid "C" Electrical: No Sub Type Information   GO to Pinpoint Test A
  PCM P0764:00 Shift Solenoid "C" Intermittent: No Sub Type Information   GO to Pinpoint Test A
  PCM P0766:00 Shift Solenoid "D" Performance/Stuck Off: No Sub Type Information   GO to Pinpoint Test X
  PCM P0767:00 Shift Solenoid "D" Stuck On: No Sub Type Information   GO to Pinpoint Test Y
  PCM P0768:00 Shift Solenoid "D" Electrical: No Sub Type Information   GO to Pinpoint Test A
  PCM P0769:00 Shift Solenoid "D" Intermittent: No Sub Type Information   GO to Pinpoint Test A
  PCM P076F:00 Gear 7 Ratio Incorrect: No Sub Type Information   GO to Pinpoint Test T
  PCM P0771:00 Shift Solenoid "E" Performance/Stuck Off: No Sub Type Information   GO to Pinpoint Test X
  PCM P0772:00 Shift Solenoid "E" Stuck On: No Sub Type Information   GO to Pinpoint Test Y
  PCM P0773:00 Shift Solenoid "E" Electrical: No Sub Type Information   GO to Pinpoint Test A
  PCM P0774:00 Shift Solenoid "E" Intermittent: No Sub Type Information   GO to Pinpoint Test A
  PCM P077D:00 OSS Sensor Circuit High: No Sub Type Information   GO to Pinpoint Test D
  PCM P0791:00 Intermediate Shaft Speed Sensor "A" Circuit: No Sub Type Information   GO to Pinpoint Test D
  PCM P0792:00 Intermediate Shaft Speed Sensor "A" Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test H
  PCM P0793:00 Intermediate Shaft Speed Sensor "A" Circuit No Signal: No Sub Type Information   GO to Pinpoint Test D
  PCM P0794:00 Intermediate Shaft Speed Sensor "A" Circuit Intermittent: No Sub Type Information   GO to Pinpoint Test D
  PCM P07C0:00 TSS Sensor Circuit High: No Sub Type Information   GO to Pinpoint Test D
  PCM P07C6:00 Intermediate Shaft Speed Sensor "A" Circuit High: No Sub Type Information   GO to Pinpoint Test D
  PCM P07C8:00 Intermediate Shaft Speed Sensor "B" Circuit High: No Sub Type Information   GO to Pinpoint Test D
  PCM P07D9:00 Gear 8 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test U
  PCM P07E4:00 Unable To Engage Park: No Sub Type Information   GO to Pinpoint Test I
  PCM P07E6:00 Stuck in Park: No Sub Type Information   GO to Pinpoint Test I
  PCM P07F6:00 Gear 9 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test V
  PCM P07F7:00 Gear 10 Incorrect Ratio: No Sub Type Information   GO to Pinpoint Test W
  PCM P0868:00 Transmission Fluid Pressure Low: No Sub Type Information   GO to Pinpoint Test Z
  PCM P0882:00 TCM Power Input Signal Low: No Sub Type Information   GO to Pinpoint Test K
  PCM P0883:00 TCM Power Input Signal High: No Sub Type Information   GO to Pinpoint Test K
  PCM P0960:00 Pressure Control Solenoid "A" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test G
  PCM P0961:00 Pressure Control Solenoid "A" Control Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test G
  PCM P0962:00 Pressure Control Solenoid "A" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test G
  PCM P0963:00 Pressure Control Solenoid "A" Control Circuit High: No Sub Type Information   GO to Pinpoint Test G
  PCM P0973:00 Shift Solenoid "A" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test A
  PCM P0974:00 Shift Solenoid "A" Control Circuit High: No Sub Type Information   GO to Pinpoint Test A
  PCM P0976:00 Shift Solenoid "B" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test A
  PCM P0977:00 Shift Solenoid "B" Control Circuit High: No Sub Type Information   GO to Pinpoint Test A
  PCM P0979:00 Shift Solenoid "C" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test A
  PCM P097A:00 Shift Solenoid "A" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P097B:00 Shift solenoid "B" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P097C:00 Shift Solenoid "C" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P097D:00 Shift Solenoid "D" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P097E:00 Shift Solenoid "E" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P097F:00 Shift Solenoid "F" Control Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P0980:00 Shift Solenoid "C" Control Circuit High: No Sub Type Information   GO to Pinpoint Test A
  PCM P0982:00 Shift Solenoid "D" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test A
  PCM P0983:00 Shift Solenoid "D" Control Circuit High: No Sub Type Information   GO to Pinpoint Test A
  PCM P0985:00 Shift Solenoid "E" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test A
  PCM P0986:00 Shift Solenoid "E" Control Circuit High: No Sub Type Information   GO to Pinpoint Test A
  PCM P0998:00 Shift Solenoid "F" Control Circuit Low: No Sub Type Information   GO to Pinpoint Test A
  PCM P0999:00 Shift Solenoid "F" Control Circuit High: No Sub Type Information   GO to Pinpoint Test A
  PCM P0B0D:00 Electric/Auxiliary Transmission Fluid Pump Motor Control Module: No Sub Type Information   GO to Pinpoint Test F
  PCM P0C27:00 Electric/Auxiliary Transmission Fluid Pump "A" Motor Current Low: No Sub Type Information   GO to Pinpoint Test F
  PCM P0C28:00 Electric/Auxiliary Transmission Fluid Pump "A" Motor Current High: No Sub Type Information   GO to Pinpoint Test E
  PCM P0C29:00 Electric/Auxiliary Transmission Fluid Pump "A" Driver Circuit Performance: No Sub Type Information   GO to Pinpoint Test E
  PCM P0C2A:00 Electric/Auxiliary Transmission Fluid Pump "A" Motor Stalled: No Sub Type Information   GO to Pinpoint Test E
  PCM P0C2C:00 Electric Transmission Fluid Pump Control Module Feedback Signal Range/Performance: No Sub Type Information   GO to Pinpoint Test E
  PCM P0C2D:00 Electric Transmission Fluid Pump Control Module Feedback Signal Low: No Sub Type Information   GO to Pinpoint Test E
  PCM P0C2E:00 Electric Transmission Fluid Pump Control Module Feedback Signal High: No Sub Type Information   GO to Pinpoint Test E
  PCM P1001:00 KOER Not Able to Complete, KOER Aborted: No Sub Type Information   GO to Pinpoint Test AI
  PCM P1397:00 System Voltage Out Of Self Test Range: No Sub Type Information   GO to Pinpoint Test K
  PCM P1636:00 Inductive Signature Chip Communication Error: No Sub Type Information   GO to Pinpoint Test AB
  PCM P163E:00 Transmission Control Module Programming Error: No Sub Type Information   GO to Pinpoint Test AC
  PCM P163F:00 Transmission ID Block Corrupted, Not Programmed: No Sub Type Information   GO to Pinpoint Test AC
  PCM P1705:00 Transmission Range Circuit Not Indicating Park/Neutral During Self Test: No Sub Type Information   GO to Pinpoint Test C
  PCM P1706:00 High Vehicle Speed Observed in Park: No Sub Type Information   GO to Pinpoint Test AJ
  PCM P1711:00 Transmission Fluid Temperature Sensor Out Of Self Test Range: No Sub Type Information   GO to Pinpoint Test AH
  PCM P1744:00 Torque Converter Clutch Solenoid Circuit Performance: No Sub Type Information   GO to Pinpoint Test AD
  PCM P175A:00 Transmission Fluid Over Temperature Condition - Electric Transmission Fluid Pump Disabled: No Sub Type Information   GO to Pinpoint Test F
  PCM P1783:00 Transmission Over Temperature Condition: No Sub Type Information   GO to Pinpoint Test J
  PCM P179D:00 Neutral Mode Exceeded Speed/Distance Conditions: No Sub Type Information   GO to Pinpoint Test AK
  PCM P1A02:00 Transmission One Way Clutch Performance: No Sub Type Information   GO to Pinpoint Test AE
  PCM P2669:00 Actuator Supply Voltage "B" Circuit/Open: No Sub Type Information   GO to Pinpoint Test A
  PCM P26C3:00 Internal Control Module Transmission Range Sensor Performance: No Sub Type Information   GO to Pinpoint Test C
  PCM P2700:00 Transmission Friction Element "A" Apply Time Range Performance: No Sub Type Information   GO to Pinpoint Test AA
  PCM P2701:00 Transmission Friction Element "B" Apply Time Range Performance: No Sub Type Information   GO to Pinpoint Test AA
  PCM P2702:00 Transmission Friction Element "C" Apply Time Range Performance: No Sub Type Information   GO to Pinpoint Test AA
  PCM P2703:00 Transmission Friction Element "D" Apply Time Range Performance: No Sub Type Information   GO to Pinpoint Test AA
  PCM P2704:00 Transmission Friction Element "E" Apply Time Range Performance: No Sub Type Information   GO to Pinpoint Test AA
  PCM P2705:00 Transmission Friction Element "F" Apply Time Range Performance: No Sub Type Information   GO to Pinpoint Test AA
  PCM P2707:00 Shift Solenoid "F" Performance/Stuck Off: No Sub Type Information   GO to Pinpoint Test X
  PCM P2708:00 Shift Solenoid "F" Stuck On: No Sub Type Information   GO to Pinpoint Test Y
  PCM P2709:00 Shift Solenoid "F" Electrical: No Sub Type Information   GO to Pinpoint Test A
  PCM P2710:00 Shift Solenoid "F" Intermittent: No Sub Type Information   GO to Pinpoint Test A
  PCM P2745:00 Intermediate Shaft Speed Sensor "B" Circuit: No Sub Type Information   GO to Pinpoint Test D
  PCM P2746:00 Intermediate Shaft Speed Sensor "B" Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test H
  PCM P2747:00 Intermediate Shaft Speed Sensor "B" Circuit No Signal: No Sub Type Information   GO to Pinpoint Test D
  PCM P2748:00 Intermediate Shaft Speed Sensor "B" Circuit Intermittent: No Sub Type Information   GO to Pinpoint Test D
  PCM P2758:00 Torque Converter Clutch Pressure Control Solenoid Stuck On: No Sub Type Information   GO to Pinpoint Test Y
  PCM P2760:00 Pressure Control Solenoid Intermittent: No Sub Type Information   GO to Pinpoint Test G
  PCM P2769:00 Torque Converter Clutch Circuit Low: No Sub Type Information   GO to Pinpoint Test G
  PCM P2770:00 Torque Converter Clutch Circuit High: No Sub Type Information   GO to Pinpoint Test G
  PCM P2783:00 Torque Converter Temperature Too High: No Sub Type Information   GO to Pinpoint Test AF
  PCM P2796:00 Electric Transmission Fluid Pump Control Circuit: No Sub Type Information   GO to Pinpoint Test E
  PCM P27B2:00 Internal Control Module Transmission Range Control Performance: No Sub Type Information   GO to Pinpoint Test AG
  PCM P27B3:00 Internal Control Module Transmission Gear Select Performance: No Sub Type Information   GO to Pinpoint Test AG
  PCM P27B4:00 Internal Control Module Gear Direction Control Performance: No Sub Type Information   GO to Pinpoint Test AG
  PCM P27B5:00 Internal Control Module Transmission Gear Select Performance: No Sub Type Information   GO to Pinpoint Test AG
  PCM P27B6:00 Internal Control Module Transmission Speed Sensor Performance: No Sub Type Information   GO to Pinpoint Test AG
  PCM P2801:00 Transmission Range Sensor "B" Circuit Range/Performance: No Sub Type Information   GO to Pinpoint Test C
  PCM P2802:00 Transmission Range Sensor "B" Circuit Low: No Sub Type Information   GO to Pinpoint Test C
  PCM P2803:00 Transmission Range Sensor "B" Circuit High: No Sub Type Information   GO to Pinpoint Test C
  PCM P2804:00 Transmission Range Sensor "B" Circuit Intermittent: No Sub Type Information   GO to Pinpoint Test C
  PCM P2805:00 Transmission Range Sensor "A"/"B" Correlation: No Sub Type Information   GO to Pinpoint Test C
  PCM P2888:00 Park Lock/Pawl Actuator Circuit Open: No Sub Type Information   GO to Pinpoint Test I
  PCM P2889:00 Park Lock/Pawl Actuator Circuit Low: No Sub Type Information   GO to Pinpoint Test I
  PCM P288A:00 Park Lock/Pawl Actuator Circuit High: No Sub Type Information   GO to Pinpoint Test I
  PCM P288B:00 Park Lock/Pawl Actuator Circuit Performance: No Sub Type Information   GO to Pinpoint Test I

Pinpoint Tests


PINPOINT TEST A : TRANSMISSION CONTROL SOLENOIDS

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

Power is routed through the transmission solenoid power control (inside the PCM) to all transmission solenoids. If the power circuit to the transmission solenoids or the transmission solenoid power control fails open, all solenoids are failed electrically off. Check for an open, short to ground or the transmission connector disconnected. The transmission solenoid power control disables power to the transmission solenoids when certain transmission DTCs are set.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0657:00 Actuator Supply Voltage "A" Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open or short to ground in the TSPC circuitry.
PCM P0753:00 Shift Solenoid "A" Electrical: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine more specific fault. If more specific DTCs such as P0973, P0974 or P097A are set resolve them first.
PCM P0754:00 Shift Solenoid "A" Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine more specific fault. If a more specific DTC is set resolve it first.
PCM P0758:00 Shift Solenoid "B" Electrical: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If more specific DTC such as P0976, P0977 or P097B are set resolve them first.
PCM P0759:00 Shift Solenoid "B" Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTC is set resolve it first.
PCM P0763:00 Shift Solenoid "C" Electrical: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTC such as P0979, P097C or P0980 are set resolve them first.
PCM P0764:00 Shift Solenoid "C" Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTC is set resolve it first.
PCM P0768:00 Shift Solenoid "D" Electrical: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTC such as P097D, P0982 or P0983 are set resolve them first.
PCM P0769:00 Shift Solenoid "D" Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTC is set resolve it first.
PCM P0773:00 Shift Solenoid "E" Electrical: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTCs such as P097E, P0985 or P0986 are set resolve them first.
PCM P0774:00 Shift Solenoid "E" Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTC is set resolve it first.
PCM P0973:00 Shift Solenoid "A" Control Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the shift solenoid control circuitry.
PCM P0974:00 Shift Solenoid "A" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the shift solenoid control circuitry.
PCM P0976:00 Shift Solenoid "B" Control Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the shift solenoid control circuitry.
PCM P0977:00 Shift Solenoid "B" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the shift solenoid control circuitry.
PCM P0979:00 Shift Solenoid "C" Control Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the shift solenoid control circuitry.
PCM P097A:00 Shift Solenoid "A" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the shift solenoid control circuitry.
PCM P097B:00 Shift Solenoid "B" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the shift solenoid control circuitry.
PCM P097C:00 Shift Solenoid "C" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the shift solenoid control circuitry.
PCM P097D:00 Shift Solenoid "D" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the shift solenoid control circuitry.
PCM P097E:00 Shift Solenoid "E" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the shift solenoid control circuitry.
PCM P097F:00 Shift Solenoid "F" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the shift solenoid control circuitry.
PCM P0980:00 Shift Solenoid "C" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the shift solenoid control circuitry.
PCM P0982:00 Shift Solenoid "D" Control Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the shift solenoid control circuitry.
PCM P0983:00 Shift Solenoid "D" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the shift solenoid control circuitry.
PCM P0985:00 Shift Solenoid "E" Control Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the shift solenoid control circuitry.
PCM P0986:00 Shift Solenoid "E" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the shift solenoid control circuitry.
PCM P0998:00 Shift Solenoid "F" Control Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the shift solenoid control circuitry.
PCM P0999:00 Shift Solenoid "F" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the shift solenoid control circuitry.
PCM P2669:00 Actuator Supply Voltage "B" Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the TCC and LPC circuitry.
PCM P2709:00 Shift Solenoid "F" Electrical: No Sub Type Information This DTC sets relationally if the DTCs P097F, P0998, P0999 are set, resolve these DTC first.
PCM P2710:00 Shift Solenoid "F" Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If a more specific DTC is set resolve it first.

Possible Sources

  • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
  • Circuit open or shorted
  • Transmission internal wiring harness
  • Shift solenoid
  • PCM
A1 CHECK THE SOLENOID POWER CIRCUIT FOR AN OPEN

NOTE: This pinpoint test is written to address all shift solenoid electrical faults. For each test step, only the circuits related to the DTC retrieved during the KOEO test need to be tested.

  • Ignition OFF.
  • Disconnect Transmission vehicle harness C168A .
  • Disconnect: PCM C1381E
  • Inspect the connectors for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-92   C168A-9

Is the resistance less than 3 ohms?
Yes GO to A2
No REPAIR the open circuit.

A2 CHECK THE SOLENOID POWER CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-92   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to A3
No REPAIR the short to ground.

A3 CHECK SOLENOID CONTROL CIRCUITS FOR AN OPEN
  • Measure the resistance of the solenoid control circuits using the following chart:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      SSA C1381E-75   C168A-14
      SSB C1381E-74   C168A-15
      SSC C1381E-72   C168A-16
      SSD C1381E-67   C168A-21
      SSE C1381E-65   C168A-22
      SSF C1381E-64   C168A-23

Are the resistances less than 3 ohm?
Yes GO to A4
No REPAIR the open circuit.

A4 CHECK SOLENOID CONTROL CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      SSA C1381E-75   Ground
      SSB C1381E-74   Ground
      SSC C1381E-72   Ground
      SSD C1381E-67   Ground
      SSE C1381E-65   Ground
      SSF C1381E-64   Ground

Is the resistance greater than 10,000 ohms on the suspect circuit?
Yes GO to A5
No REPAIR the short to ground.

A5 CHECK THE SOLENOID CONTROL CIRCUIT FOR A SHORT TO POWER
  • Ignition ON.
  • Measure the voltage present on the suspect solenoid control circuit using the following chart:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      SSA C1381E-75   Ground
      SSB C1381E-74   Ground
      SSC C1381E-72   Ground
      SSD C1381E-67   Ground
      SSE C1381E-65   Ground
      SSF C1381E-64   Ground

Is any voltage present on the suspect circuit?
Yes REPAIR the short to power.
No GO to A6

A6 CHECK SOLENOID CONTROL CIRCUIT FOR AN OPEN CIRCUIT WITH TRANSMISSION HARNESS CONNECTED
  • Ignition OFF.
  • Connect Transmission Vehicle Harness C168A .
  • Remove the transmission fluid pan.
    REFER to: Transmission Fluid Pan, Gasket and Filter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect All shift solenoid connectors..
  • Measure, using the table below:
    Positive Lead Measurement / Action Negative Lead
      SSA C1381E-75   SSA C1843-2
      SSB C1381E-74   SSB C1844-2
      SSC C1381E-72   SSC C1845-2
      SSD C1381E-67   SSD C1846-2
      SSE C1381E-65   SSE C1847-2
      SSF C1381E-64   SSF C1848-2

Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to A7
No INSTALL a new internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

A7 CHECK SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND WITH TRANSMISSION HARNESS CONNECTED
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      SSA C1381E-75   Ground
      SSB C1381E-74   Ground
      SSC C1381E-72   Ground
      SSD C1381E-67   Ground
      SSE C1381E-65   Ground
      SSF C1381E-64   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to A8
No INSTALL a new internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

A8 CHECK SOLENOID POWER CIRCUIT FOR AN OPEN CIRCUIT WITH TRANSMISSION HARNESS CONNECTED
  • Measure resistance of the suspect solenoid power circuit using the table below:
    Positive Lead Measurement / Action Negative Lead
      SSA C1381E-92   C1843-1
      SSB C1381E-92   C1844-1
      SSC C1381E-92   C1845-1
      SSD C1381E-92   C1846-1
      SSE C1381E-92   C1847-1
      SSF C1381E-92   C1848-1

Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to A9
No INSTALL a new internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

A9 CHECK SOLENOID POWER CIRCUIT FOR A SHORT TO GROUND WITH TRANSMISSION HARNESS CONNECTED
  • Measure:
    Positive Lead Measurement / Action Negative Lead
      C1381E-92   Ground

Is the resistance greater than 10,000 ohms?
Yes INSTALL a new solenoid.
REFER to: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL a new internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

PINPOINT TEST B : TRANSMISSION FLUID TEMPERATURE SENSOR

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

The TFT sensor is a temperature dependent resistor that is in contact with transmission fluid in the transmission sump area. The PCM monitors the voltage drop across the TFT sensor, which changes as transmission fluid temperature varies. The PCM uses the TFT sensor signal as an input for its strategy for shifting and TCC operation. The PCM also uses the TFT sensor signal for transmission fault detection and diagnostics.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0710:00 Transmission Fluid Temperature Sensor "A" Circuit: No Sub Type Information This DTC illuminates the wrench light in conjunction with P0712 and/or P0713. Resolve the more specific DTC first.
PCM P0711:00 Transmission Fluid Temperature Sensor "A" Circuit Range/Performance: No Sub Type Information This DTC indicates the TFT sensor is reading within range, but the PCM detected no change when the vehicle was driven enough that the transmission fluid temperature should have changed.
PCM P0712:00 Transmission Fluid Temperature Sensor "A" Circuit Low: No Sub Type Information This DTC indicates a short to ground in the TFT sensor circuit.
PCM P0713:00 Transmission Fluid Temperature Sensor "A" Circuit High: No Sub Type Information This DTC indicates an open circuit in the TFT sensor circuit.

Possible Sources

  • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
  • Circuit open or shorted
  • TFT sensor
  • Transmission internal wiring harness
  • PCM
B1 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL INPUT CIRCUIT
  • Ignition OFF.
  • Disconnect Transmission Vehicle Harness C168A .
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Connect the diagnostic tool.
  • Ignition ON.
  • Access the  PCM  and monitor the  TFT (Deg C)  PID

  • Access the  PCM  and monitor the  TFT_V (V)  PID


Does the TFT PID display approximately -40°C and the TFTV PID display 4.96 to 5.10 volts?
Yes GO to B2
No GO to B3

B2 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL RETURN CIRCUIT
  • Connect a fused jumper to the transmission vehicle harness:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-13   C168A-20

Does the TFT PID display approximately 190°C and the TFTV PID display 0 volts?
Yes Remove the fused jumper. GO to B10
No Remove the fused jumper. GO to B3

B3 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL INPUT CIRCUIT FOR VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-13   Ground

Is the voltage between 4.8 and 5.1 volts?
Yes GO to B7
No GO to B4

B4 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL INPUT CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect PCM C1381B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-13   C1381B-93

Is the resistance less than 3 ohms?
Yes GO to B5
No REPAIR the open circuit.

B5 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL INPUT CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-13   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B6
No REPAIR the short to ground.

B6 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR INPUT SIGNAL CIRCUIT FOR A SHORT TO POWER
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-13   Ground

Is any voltage present?
Yes REPAIR the short to power.
No
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).

B7 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL RETURN CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect PCM C1381E .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-20   C1381E-62

Is the resistance less than 3 ohms?
Yes GO to B8
No REPAIR the open circuit.

B8 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL RETURN CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-20   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to B9
No REPAIR the short to ground.

B9 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL RETURN CIRCUIT FOR A SHORT TO POWER
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-20   Ground

Is any voltage present?
Yes REPAIR the short to power.
No
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).

B10 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR FOR AN OPEN AT THE TRANSMISSION BULKHEAD CONNECTOR
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Transmission component side, pin 13 Transmission component side, pin 20
  • Compare the measured resistance to the current temperature of the transmission fluid using the following chart.
    °C °F Resistance (ohms)
    -50 to -40 -58 to -40 41k-97k
    -39 to -20 -39 to -4 14k-52k
    -19 to -1 -3 to 31 5.5k-17k
    0 to 20 32 to 68 2.3k-6.4k
    21 to 40 69 to 104 1.1k-2.7k
    41 to 70 105 to 158 0.4k-1.3k
    71 to 90 159-194 236-445
    91 to 110 195-230 140-247
    111 to 130 231-266 87-145
    131 to 150 267-302 55-90

Does the resistance match the specification on the temperature chart?
Yes GO to B12
No GO to B11

B11 CHECK TFT SENSOR RESISTANCE
  • Remove the main control valve body.
    REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect TFT sensor C1842 .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    TFT sensor component side pin 1 TFT sensor component side pin 2
  • Compare the measured resistance to the current temperature of the TFT sensor using the following chart.
    °C °F Resistance (ohms)
    -50 to -40 -58 to -40 41k-97k
    -39 to -20 -39 to -4 14k-52k
    -19 to -1 -3 to 31 5.5k-17k
    0 to 20 32 to 68 2.3k-6.4k
    21 to 40 69 to 104 1.1k-2.7k
    41 to 70 105 to 158 0.4k-1.3k
    71 to 90 159-194 236-445
    91 to 110 195-230 140-247
    111 to 130 231-266 87-145
    131 to 150 267-302 55-90

Does the resistance match the specification on the temperature chart?
Yes INSTALL a new transmission internal wiring harness (both pieces).
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL a new TFT sensor.
REFER to: Transmission Fluid Temperature (TFT) Sensor (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

B12 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR FOR A SHORT TO GROUND AT THE TRANSMISSION BULKHEAD CONNECTOR
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Transmission component side, pin 13   Ground
    Transmission component side, pin 20   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to B14
No GO to B13

B13 CHECK THE TFT SENSOR FOR A SHORT TO GROUND
  • Remove the main control valve body.
    REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect TFT sensor C1842 .
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    TFT sensor component side pin 1   Ground
    TFT sensor component side pin 2   Ground

Are the resistances greater than 10,000 ohms?
Yes INSTALL a new transmission internal wiring harness (both pieces).
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL a new TFT sensor.
REFER to: Transmission Fluid Temperature (TFT) Sensor (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

B14 CHECK THE RESISTANCE OF THE ENTIRE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR CIRCUIT
  • Disconnect PCM C1381B .
  • Disconnect PCM C1381E .
  • Connect Transmission vehicle harness C168A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381B-93   C1381E-62
  • Compare the measured resistance to the current temperature of the transmission fluid using the following chart.
    °C °F Resistance (ohms)
    -50 to -40 -58 to -40 41k-97k
    -39 to -20 -39 to -4 14k-52k
    -19 to -1 -3 to 31 5.5k-17k
    0 to 20 32 to 68 2.3k-6.4k
    21 to 40 69 to 104 1.1k-2.7k
    41 to 70 105 to 158 0.4k-1.3k
    71 to 90 159-194 236-445
    91 to 110 195-230 140-247
    111 to 130 231-266 87-145
    131 to 150 267-302 55-90

Does the resistance match the specification on the temperature chart?
Yes CONNECT all electrical connectors. CLEAR the DTC. CARRY OUT the KOEO and KOER self-tests.
If the DTC returns,
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures). If the DTC does not return, the fault is no longer present and might have been caused by a terminal fitment issue.
No There is a terminal fitment issue. REPAIR the vehicle wiring harness.

PINPOINT TEST C : TRANSMISSION RANGE (TR) SENSOR

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

The TR sensor is comprised of a dual set of TR sensors. On Shift by Wire vehicles, the park system position is detected by reading TR sensors A and B. The PCM shifts the vehicle in and out of park and provides forward or reverse based on the position of the GSM shift knob. The 10R60 transmission uses dual PWM output (at 125 Hz) TR sensors where: TR sensor A increases as the park system is moved from Park to Out of Park and TR sensor B decreases as the park system is moved from Park to Out of Park, together the sum of the two signals should add up to 100%.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0706:00 Transmission Range Sensor "A" Circuit Range/Performance: No Sub Type Information This DTC sets if the PCM detects an out of range condition due to a short to ground, a short to power or an open condition in the TR sensor circuitry.
PCM P0707:00 Transmission Range Sensor "A" Circuit Low: No Sub Type Information This DTC sets if the PCM detects an out of range condition due to a short to ground, a short to power or an open condition in the TR sensor circuitry.
PCM P0708:00 Transmission Range Sensor "A" Circuit High: No Sub Type Information This DTC sets if the PCM detects an out of range condition due to a short to ground, a short to power or an open condition in the TR sensor circuitry.
PCM P0709:00 Transmission Range Sensor "A" Circuit Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If more specific DTCs such as P0706, P0707 or P0708 are set resolve them first.
PCM P1705:00 Transmission Range Circuit Not Indicating Park/Neutral During Self Test: No Sub Type Information This DTC sets if the self-test is run in R or a forward gear, the TR sensor is misaligned or inoperative.
PCM P26C3:00 Internal Control Module Transmission Range Sensor Performance: No Sub Type Information This DTC sets if TR sensor A and/or B is out of range, or if TR sensors A and B do not correlate.
PCM P2801:00 Transmission Range Sensor "B" Circuit Range/Performance: No Sub Type Information This DTC sets if the PCM detects an out of range condition due to a short to ground, a short to power or an open condition in the TR sensor circuitry.
PCM P2802:00 Transmission Range Sensor "B" Circuit Low: No Sub Type Information This DTC sets if the PCM detects an out of range condition due to a short to ground, a short to power or an open condition in the TR sensor circuitry.
PCM P2803:00 Transmission Range Sensor "B" Circuit High: No Sub Type Information This DTC sets if the PCM detects an out of range condition due to a short to ground, a short to power or an open condition in the TR sensor circuitry.
PCM P2804:00 Transmission Range Sensor "B" Circuit Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If more specific DTCs such as P2801, P2802 or P2803 are set resolve them first.
PCM P2805:00 Transmission Range Sensor "A"/ "B" Correlation: No Sub Type Information This DTC sets if the PCM detects the sum of the TR sensors is out of range.

Possible Sources

  • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
  • Circuit open or shorted
  • TR sensor
  • Transmission main control harness
  • PCM
C1 VERIFY DTCS

NOTE: Read and record all DTCs.

  • Ignition OFF.
  • Select PARK.
  • Connect the diagnostic tool.
  • Carry out the KOEO then the KOER test.

Are any TR sensor DTCs present?
Yes GO to C2
No If no DTCs are present, and to diagnose any symptoms that may be present,
REFER to: Diagnosis By Symptom (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).

C2 CHECK TR SENSOR ELECTRICAL OPERATION
  • Ignition ON.
  • Enter the following diagnostic mode on the scan tool: TR PID: TR_A_DC and TR_B_DC.
  • Move the shift knob into each range and stop.
  • Observe the PIDs TR_A_DC and TR_B_DC while wiggling the harness or driving the vehicle.
  • Compare the duty cycles shown by the PIDs TR_A_DC and TR_B_DC to the park system position duty cycle, using the following chart.

      Typical TR Sensor(s) PWM Output


      Transmission Range Sensor A Transmission Range Sensor B
    Park System Position Min Max Min Max
    Park 13.00 17.00 83.00 87.00
    Out of Park 61.26 65.26 34.74 38.74
    Park Manual Override 77.93 81.93 18.07 22.07

Are the TR_A_DC and TR_B_DC duty cycles within range and do both remain steady when the harness is wiggled or the vehicle is driven?
Yes The problem is not in the TR sensor. If any symptoms are present,
REFER to: Diagnosis By Symptom (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No GO to C3

C3 CHECK TR SENSOR CIRCUITS FOR POWER
  • Ignition OFF.
  • Disconnect: Transmission Vehicle Harness C168A.
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-5   Ground
      C168A-6   Ground

Are the voltages approximately 5 volts?
Yes GO to C4
No GO to C5

C4 CHECK TR SENSOR VOLTAGE CIRCUIT FOR POWER
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-8   Ground

Is the voltage approximately 9 volts?
Yes GO to C8
No GO to C5

C5 CHECK TR SENSOR VOLTAGE CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-8   C1381E-71
      C168A-5   C1381E-29
      C168A-6   C1381E-80

Are the resistances less than 3 ohms?
Yes GO to C6
No REPAIR the open circuit.

C6 CHECK TR SENSOR VOLTAGE CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-8   Ground
      C168A-5   Ground
      C168A-6   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to C7
No REPAIR the short to ground.

C7 CHECK THE TR (TRANSMISSION RANGE) SENSOR VREF AND SIGNAL CIRCUITS FOR A SHORT TO POWER
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-5   Ground
      C168A-6   Ground
      C168A-8   Ground

Is any voltage present?
Yes REPAIR the short to power.
No
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).

C8 CHECK TR SENSOR GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-20   C1381E-62

Is the resistance less than 3 ohms?
Yes GO to C9
No REPAIR the open circuit.

C9 CHECK THE TR (TRANSMISSION RANGE) SENSOR GROUND CIRCUIT FOR A SHORT TO POWER
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-20   Ground

Is any voltage present?
Yes REPAIR the short to power.
No GO to C10

C10 CHECK TR SENSOR TRP1, TRP2, CIRCUITS FOR POWER THROUGH THE BULKHEAD CONNECTOR
  • Ignition OFF.
  • Remove the transmission fluid pan.
    REFER to: Transmission Fluid Pan, Gasket and Filter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Connect Transmission Vehicle Harness C168A .
  • Connect PCM C1381E .
  • Disconnect TR sensor C167 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C167-2   Ground
      C167-3   Ground

Are the voltages approximately 5 volts?
Yes GO to C11
No INSTALL a new internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

C11 CHECK TR SENSOR VREF CIRCUIT FOR POWER
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C167-4   Ground

Is the voltage approximately 8.0 to 9.2 volts?
Yes GO to C12
No INSTALL a new internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

C12 CHECK TR SENSOR GROUND CIRCUIT
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C167-4   C167-1

Is the voltage approximately 8.0 to 9.2 volts?
Yes INSTALL a new TR sensor.
REFER to: Transmission Range (TR) Sensor (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL a new internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

PINPOINT TEST D : OSS (OUTPUT SHAFT SPEED) SENSOR, TSS (TURBINE SHAFT SPEED) SENSOR, INTERMEDIATE SPEED SENSOR A (ISSA) AND INTERMEDIATE SPEED SENSOR B (ISSB)

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

TSS Sensor

The TSS sensor is a Hall-effect type sensor that provides a signal to the PCM that changes in frequency as the rotating speed of the planetary carrier No. 2 varies. The PCM compares the TSS sensor signal with the engine speed information to determine the amount of slip occurring in the torque converter. The PCM also compares the TSS sensor signal with the OSS sensor signal to determine the gear ratio provided by the planetary carrier No. 4. The PCM uses the TSS sensor signal as an input for its shift strategies and TCC operation. The PCM also uses the TSS sensor signal for transmission fault detection and diagnostics.

OSS Sensor

The OSS sensor is a Hall-effect type sensor that provides a signal to the PCM that changes in frequency as the rotating speed of the rear planetary carrier No. 4 varies. The PCM also compares the OSS sensor signal with the TSS sensor signal to determine the gear ratio provided by the rear planetary gearset. The PCM uses the OSS sensor signal as an input for its shift strategies and TCC operation. The PCM also uses the OSS sensor signal for transmission fault detection and diagnostics.

Intermediate Speed Sensors A and B

The intermediate speed sensors A (ISSA) and B (ISSB) are Hall-effect type sensors that provide a signal to the PCM that changes in frequency as the rotating speed of the component being monitored changes. ISSA monitors the speed and rotational direction of ring gear 1 and ISSB monitors the speed and rotational direction of planetary carrier-1/ring gear 4. The intermediate speed sensors are used to monitor clutch states for transmission fault detection and diagnostics.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0715:00 Input/Turbine Shaft Speed Sensor "A" Circuit: No Sub Type Information This DTC sets if the PCM detects an open or short to ground in the TSS sensor circuitry.
PCM P0717:00 Input/Turbine Shaft Speed Sensor "A" Circuit No Signal: No Sub Type Information This DTC sets relationally if the DTCs P0715, P07BF, P07C0 are set, resolve these DTCs first.
PCM P0718:00 Input/Turbine Shaft Speed Sensor "A" Circuit Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault.
PCM P0720:00 Output Shaft Speed Sensor Circuit: No Sub Type Information This DTC sets if the PCM detects an open or short to ground in the OSS sensor circuitry.
PCM P0722:00 Output Shaft Speed Sensor Circuit No Signal: No Sub Type Information This DTC sets relationally if the DTCs P0720, P077C or P077D are set, resolve these DTCs first.
PCM P0723:00 Output Shaft Speed Sensor Circuit Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault.
PCM P077D:00 Output Shaft Speed Sensor Circuit High: No Sub Type Information This DTC sets if the PCM detects short to power in the OSS sensor circuitry.
PCM P0791:00 Intermediate Shaft Speed Sensor "A" Circuit: No Sub Type Information This DTC sets if the PCM detects an open or short to ground in the intermediate shaft sensor circuitry.
PCM P0793:00 Intermediate Shaft Speed Sensor "A" Circuit No Signal: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine more a specific fault. If more specific DTCs such as P0791, P07C5 or P07C6 are set resolve them first.
PCM P0794:00 Intermediate Shaft Speed Sensor "A" Circuit Intermittent: No Sub Type Information This DTC sets if the PCM detects an open circuit in the intermediate shaft speed sensor circuitry.
PCM P07C0:00 Input/Turbine Shaft Speed Sensor "A" Circuit High: No Sub Type Information This DTC sets if the PCM detects an open circuit in the TSS sensor circuitry.
PCM P07C6:00 Intermediate Shaft Speed Sensor "A" Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the intermediate shaft speed sensor circuitry.
PCM P07C8:00 Intermediate Shaft Speed Sensor "B" Circuit High: No Sub Type Information This DTC sets if the PCM detects an open in the intermediate shaft speed sensor circuitry.
PCM P2745:00 Intermediate Shaft Speed Sensor "B" Circuit: No Sub Type Information This DTC sets if the PCM detects an open or short to ground in the intermediate shaft speed sensor circuitry.
PCM P2747:00 Intermediate Shaft Speed Sensor "B" Circuit No Signal: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If more specific DTCs such as P2745, P07C7 or P07C8 are set resolve them first.
PCM P2748:00 Intermediate Shaft Speed Sensor "B" Circuit Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault.

Possible Sources

  • Connectors damaged or pushed-out terminals, corrosion, loose wires or ground and missing or damaged seals
  • Circuit open or shorted
  • Transmission internal wiring harness
  • TSS sensor
  • OSS sensor
  • Intermediate Speed Sensor A (ISSA)
  • Intermediate Speed Sensor B (ISSB)
  • PCM
D1 CHECK SENSOR POWER CIRCUIT FOR VOLTAGE

NOTE: This pinpoint test is written to address all speed sensor electrical faults. For each test step, only the circuits related to the DTC retrieved during the KOEO test need to be tested.

  • Ignition OFF.
  • Disconnect: Transmission Vehicle Harness C168A
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Ignition ON.
  • For OSS sensor and ISSA, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-7   Ground
  • for TSS sensor and ISSB, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-8   Ground

Is the voltage on the suspect circuit 8.0 to 9.2 volts?
Yes GO to D4
No GO to D2

D2 CHECK THE SENSOR POWER CIRCUIT FOR A SHORT TO GROUND
  • Disconnect: PCM C1381E
  • Ignition OFF.
  • For OSS sensor and ISSA measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-7   Ground
  • For TSS sensor and ISSB, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-8   Ground

Is the resistance on the suspect circuit greater than 10,000 ohms?
Yes GO to D3
No REPAIR the short to ground.

D3 CHECK THE SENSOR POWER CIRCUIT FOR AN OPEN
  • For OSS sensor and the ISSA measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-7   C1381E-70
  • For TSS sensor and the ISSB measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-8   C1381E-71

Is the resistance on the suspect circuit less than 3 ohms?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No REPAIR the open circuit.

D4 CHECK THE SENSOR SIGNAL RETURN CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect: PCM C1381E
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Ignition OFF.
  • For the OSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-4   C1381E-68
  • For the TSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-1   C1381E-90
  • For the ISSA, measure
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-2   C1381E-61
  • For the ISSB, measure
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-3   C1381E-24

Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to D5
No REPAIR the open circuit.

D5 CHECK THE SENSOR SIGNAL RETURN CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • For the OSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-68   Ground
  • For the TSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-90   Ground
  • For the ISSA, measure
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-61   Ground
  • For the ISSB, measure
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-24   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to D6
No REPAIR the short to ground.

D6 CHECK THE SENSOR SIGNAL RETURN CIRCUIT FOR A SHORT TO POWER
  • Ignition ON.
  • For the OSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-68   Ground
  • For the TSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-90   Ground
  • For the ISSA sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-61   Ground
  • For the ISSB sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-24   Ground

Is any voltage present on the suspect circuit?
Yes REPAIR the short to power.
No GO to D7

D7 CHECK THE SENSOR SIGNAL RETURN INTERNAL HARNESS CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Remove the transmission pan.
    REFER to: Transmission Fluid Pan, Gasket and Filter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect for OSS sensor C1107 .
  • Remove the main control to access the connectors.
    REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect for TSS sensor C3106 .
  • Disconnect for ISSA C1836 .
  • Disconnect for ISSB C1837 .
  • For the OSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1107-1   Ground
  • For the TSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3106-1   Ground
  • For the ISSA, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1836-1   Ground
  • For the ISSB, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1837-1   Ground

Is the resistance greater than 10,000 ohms on the suspect circuit?
Yes GO to D8
No INSTALL new transmission internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

D8 CHECK THE SENSOR RETURN CIRCUITS (WITH HARNESSES CONNECTED) FOR AN OPEN
  • Connect Transmission Vehicle Harness C168A .
  • For the OSS sensor, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1107-1   C1381E-68
  • For the TSS sensor, measure
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3106-1   C1381E-90
  • For the ISSA, measure
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1836-1   C1381E-61
  • For the ISSB, measure
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1837-1   C1381E-24

Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to D9
No INSTALL new transmission internal wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

D9 CHECK FOR VOLTAGE AT SENSORS
  • Connect PCM C1381E .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1107-2   Ground
      C1836-2   Ground
      C1837-2   Ground
      C3106-2   Ground

Are the voltages 8.0 to 9.2 volts?
Yes INSTALL a new sensor as necessary.
REFER to: Output Shaft Speed (OSS) Sensor (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
REFER to: Turbine Shaft Speed (TSS) Sensor (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
REFER to: Intermediate Speed Sensor A (ISSA) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
REFER to: Intermediate Speed Sensor B (ISSB) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL new transmission internal wiring harnesses.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

PINPOINT TEST E : DTCS P0C28, P0C29, P0C2A, P0C2C, P0C2D, P0C2E, P2796

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

The transmission fluid auxiliary pump keeps the transmission engaged when the engine is stopped and the transmission is in drive. The transmission fluid auxiliary pump has an internal microprocessor and communicates with the PCM over a PWM circuit with a frequency of 150 Hz and a duty cycle range of 10% to 90%.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0C28:00 Electric/Auxiliary Transmission Fluid Pump "A" Motor Current High: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump communication is OK, the frequency is between 125 Hz and 175 Hz, but a high current is detected (20% to 25% duty cycle).
PCM P0C29:00 Electric/Auxiliary Transmission Fluid Pump "A" Driver Circuit Performance: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump communication is OK, the frequency is between 125 Hz and 175 Hz, but a high current is detected and the pump speed is out of range (75% to 80% duty cycle)
PCM P0C2A:00 Electric/Auxiliary Transmission Fluid Pump "A" Motor Stalled: No Sub Type Information This DTC indicates the PCM commanded the transmission fluid auxiliary pump on but did not detect a corresponding increase in pump speed, indicating a stalled pump motor (35% to 40% duty cycle).
PCM P0C2C:00 Electric Transmission Fluid Pump Control Module Feedback Signal Range/Performance: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump frequency is between 125 and 175Hz but has an invalid duty cycle, or the frequency is outside of the 125-175Hz range. This can be caused by a loss of power to the transmission fluid auxiliary pump.
PCM P0C2D:00 Electric Transmission Fluid Pump Control Module Feedback Signal Low: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump duty cycle is less than 10%. This DTC can set while using output state control to command a pump speed outside of normal operating parameters.
PCM P0C2E:00 Electric Transmission Fluid Pump Control Module Feedback Signal High: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump duty cycle is greater than 90%. This DTC can set while using output state control to command a pump speed outside of normal operating parameters
PCM P2796:00 Electric Transmission Fluid Pump Control Circuit: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump is not receiving a command signal from the PCM (85% to 90% duty cycle).

Possible Sources

  • Connectors damaged or pushed-out terminals, corrosion, loose wires or ground and missing or damaged seals
  • BJB fuse 26 (15A)
  • Circuit open or shorted
  • Transmission internal wiring harness
  • Transmission fluid auxiliary pump
  • PCM
E1 CHECK THE TRANSMISSION FLUID LEVEL
  • CHECK the transmission fluid level.
    REFER to: Transmission Fluid Level Check (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).

Is the transmission fluid level correct?
Yes GO to E2
No CORRECT the transmission fluid to the proper level, CLEAR the DTCs and road test the vehicle. If DTCs return, GO to E2

E2 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP VPWR CIRCUIT FOR VOLTAGE
  • Ignition OFF.
  • Disconnect Transmission Vehicle Harness C168A .
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-10   Ground

Is the voltage greater than 11 volts?
Yes GO to E3
No VERIFY the BJB fuse 26 (15A) is OK.
If the fuse is OK, REFER to the Wiring Diagrams manual to identify an open circuit.
If the fuse is not OK, REFER to the Wiring Diagrams manual to identify a short to ground.

E3 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP TASV CIRCUIT FOR VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-12   Ground

Is the voltage greater than 11 volts?
Yes GO to E6
No GO to E4

E4 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP TASV CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect PCM C1381E .
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-12   C1381E-95

Is the resistance less than 3 ohms?
Yes GO to E5
No REPAIR the open circuit.

E5 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP TASV CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-12   Ground

Is the resistance greater than 10,000 ohms?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No REPAIR the short to ground.

E6 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP GROUND CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-17   Ground

Is the resistance less than 3 ohms?
Yes GO to E7
No REPAIR the open circuit.

E7 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP ATFPC AND ATFPM CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect PCM C1381B .
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Measure:
    Click to display connectors

      ATFPC


    Positive Lead Measurement / Action Negative Lead
      C168A-18   C1381B-41

    Click to display connectors

      ATFPM


    Positive Lead Measurement / Action Negative Lead
      C168A-19   C1381B-50

Are the resistances less than 3 ohms?
Yes GO to E8
No REPAIR the open circuit.

E8 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP ATFPC AND ATFPM CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors

      ATFPC


    Positive Lead Measurement / Action Negative Lead
      C168A-18   Ground

    Click to display connectors

      ATFPM


    Positive Lead Measurement / Action Negative Lead
      C168A-19   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to E9
No REPAIR the short to ground.

E9 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP ATFPC AND ATFPM CIRCUITS FOR A SHORT TO POWER
  • Ignition ON.
  • Measure:
    Click to display connectors

      ATFPC


    Positive Lead Measurement / Action Negative Lead
      C168A-18   Ground

    Click to display connectors

      ATFPM


    Positive Lead Measurement / Action Negative Lead
      C168A-19   Ground

Is any voltage present?
Yes REPAIR the short to power.
No GO to E10

E10 CHECK THE TRANSMISSION CASE WIRING HARNESS ATFPC AND ATFPM CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Remove the transmission fluid pan.
    REFER to: Transmission Fluid Pan, Gasket and Filter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect Transmission Fluid Auxiliary Pump C1792 .
  • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Measure:

      ATFPC


    Positive Lead Measurement / Action Negative Lead
    Transmission component side, pin 18   C1792-4

      ATFPM


    Positive Lead Measurement / Action Negative Lead
    Transmission component side, pin 19   C1792-5

Are the resistances less than 3 ohms?
Yes GO to E11
No INSTALL a new transmission case wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

E11 CHECK THE TRANSMISSION CASE WIRING HARNESS ATFPC AND ATFPM CIRCUITS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors

      ATFPC


    Positive Lead Measurement / Action Negative Lead
      C1792-4   Ground

    Click to display connectors

      ATFPM


    Positive Lead Measurement / Action Negative Lead
      C1792-5   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to E12
No INSTALL a new transmission case wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

E12 CHECK THE TRANSMISSION CASE WIRING HARNESS TRANSMISSION FLUID AUXILIARY PUMP POWER CIRCUITS
  • Ignition OFF.
  • Connect Transmission Vehicle Harness C168A .
  • Connect PCM C1381E .
  • Connect BJB fuse 26 (15A) (if previously disconnected).
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1792-1   Ground
      C1792-3   Ground

Are the voltages greater than 11 volts?
Yes GO to E13
No INSTALL a new transmission case wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

E13 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS TRANSMISSION FLUID AUXILIARY PUMP GROUND CIRCUIT
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1792-1   C1792-6

Is the voltage greater than 11 volts?
Yes INSTALL a new transmission fluid auxiliary pump.
REFER to: Transmission Fluid Auxiliary Pump (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL a new transmission case wiring harness.
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

PINPOINT TEST F : DTCS P0B0D, P0C27, P175A

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

The transmission fluid auxiliary pump keeps the transmission fluid circulating during auto start-stop events. The transmission fluid auxiliary pump has an internal microprocessor and communicates with the PCM over a PWM circuit with a frequency of 150 Hz with a duty cycle range of 10% to 90%. If the transmission fluid level is low or overfilled or there are any restrictions in the transmission lines, hoses (if vehicle is equipped with external lines or hoses) or cooler it may affect the transmission fluid auxiliary pump operation.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0B0D:00 Electric/Auxiliary Transmission Fluid Pump Motor Control Module: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump communication is OK, the frequency is between 125 Hz and 175 Hz and a valid duty cycle was detected, but the transmission fluid auxiliary pump has detected a pump over or under speed condition. The current flow through the pump was within specification (55% to 60% or 65% to 70% duty cycle).
PCM P0C27:00 Electric/Auxiliary Transmission Fluid Pump "A" Motor Current Low: No Sub Type Information This DTC indicates the transmission fluid auxiliary pump communication is OK, the frequency is between 125 Hz and 175 Hz, but a low current is detected (10% to 15% duty cycle). Possible causes are a low transmission fluid level or leaking pump seals.
PCM P175A:00 Transmission Fluid Over Temperature Condition - Electric Transmission Fluid Pump Disabled: No Sub Type Information This DTC sets if the auxiliary pump communication is OK, the frequency is between 130 Hz and 170 Hz, but an over temperature condition is detected (30% to 34% duty cycle). This DTC can be caused by high transmission fluid temperatures.

Possible Sources

  • Electric transmission fluid pump
  • Transmission fluid auxiliary pump seals
  • Transmission fluid auxiliary pump
F1 CHECK THE TRANSMISSION FLUID LEVEL
  • CHECK the transmission fluid level.
    REFER to: Transmission Fluid Level Check (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).

Is the transmission fluid level correct?
Yes GO to F2
No CORRECT the transmission fluid to the proper level, clear the DTCand road test the vehicle. If the DTC returns, GO to F2

F2 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using the diagnostic scan tool, retrieve all DTCs from the PCM.

Are DTCs P0B0D, P0C27 and/or P175A present?
Yes For DTC P0B0D, GO to F3
For P0C27, GO to F4
For P175A, GO to F6
No The fault is not present at this time.

F3 RECHECK FOR DTC P0B0D
  • Ignition ON.
  • Using the diagnostic scan tool, CLEAR all DTCs.
  • Road test the vehicle, making sure the auto start-stop function operates.
  • Perform the PCM self-test.

Is DTC P0B0D present?
Yes INSTALL a new transmission fluid auxiliary pump.
REFER to: Transmission Fluid Auxiliary Pump (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No The fault is not present at this time.

F4 RECHECK FOR DTC P0C27
  • Using the diagnostic scan tool, CLEAR all DTCs.
  • Road test the vehicle, making sure the auto start-stop function operates.
  • Perform the PCM self-test.

Is DTC P0C27 present?
Yes GO to F5
No The fault is not present at this time.

F5 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP SEALS
  • Remove the transmission fluid pan.
    REFER to: Transmission Fluid Pan, Gasket and Filter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Remove the transmission fluid auxiliary pump tube and inspect the seals.

Are the transmission fluid pump seals OK?
Yes INSTALL a new transmission fluid auxiliary pump.
REFER to: Transmission Fluid Auxiliary Pump (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL new seals on the transmission fluid auxiliary pump tube.
REFER to: Transmission Fluid Auxiliary Pump (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

F6 CHECK FOR TRANSMISSION OVER TEMPERATURE DTCS
  • Ignition ON.
  • Using the diagnostic scan tool, retrieve all CMDTCs.

Are DTCs P0218 and/or P1783 present?
Yes RESOLVE those DTCs first. REFER to the DTC chart.
No GO to F7

F7 RECHECK FOR DTC P175A
  • Allow the transmission to cool.
  • Ignition ON.
  • Using the diagnostic scan tool, CLEAR all DTCs.
  • Road test the vehicle, making sure the transmission reaches operating temperature and the auto start-stop function operates.
  • Perform the PCM self-test.

Is DTC P175A present?
Yes INSTALL a new transmission fluid auxiliary pump.
REFER to: Transmission Fluid Auxiliary Pump (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No The fault is not present at this time. It may have been caused by a previous extreme operating condition.

PINPOINT TEST G : TCC, LPC SOLENOIDS

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

When the electrical connector or solenoid is disconnected, inspect the connector for terminal condition, corrosion and contamination and the connector seal for damage. Clean, repair or install new components as required. If the power circuit to the transmission solenoids fails open, then all solenoids are failed electrically off. Check for an open, short to ground or the transmission connector disconnected. The TCC is controlled by a directly proportional solenoid. Like the shift solenoids the TCC solenoid is controlled by a smart driver capable of detecting open, short to ground and short to power faults. In the event of an open circuit or short to power fault the TCC circuit is failed open. The TCC and LPC solenoids share a high side driver. Anytime power is removed the transmission defaults to MAX line pressure with open TCC. LPC is controlled by an inversely proportional solenoid (0 current = max pressure, max current = min line pressure). The LPC solenoid is controlled by a “smart driver” capable of detecting an open, short to ground or short to power faults.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0740:00 Torque Converter Clutch Solenoid Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the TCC solenoid circuitry.
PCM P0743:00 Torque Converter Clutch Solenoid Circuit Electrical: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If more specific DTCs such as P0740 or P2769 are set resolve them first.
PCM P0748:00 Pressure Control Solenoid "A" Electrical: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine a more specific fault. If more specific DTCs such as P0960, P0962 or P0963 are set resolve them first.
PCM P0960:00 Pressure Control Solenoid "A" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open in the pressure control solenoid circuitry or in the pressure control solenoid.
PCM P0961:00 Pressure Control Solenoid "A" Control Circuit Range/Performance: No Sub Type Information This DTC sets if the PCM detects a short to ground, a short to power or an open in the pressure control solenoid circuitry or a short or open in the pressure control solenoid.
PCM P0962:00 Pressure Control Solenoid "A" Control Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the pressure control solenoid circuitry or a short in the pressure control solenoid.
PCM P0963:00 Pressure Control Solenoid "A" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power in the pressure control solenoid circuitry.
PCM P2760:00 Torque Converter Clutch Pressure Control Solenoid Intermittent: No Sub Type Information This DTC sets if the fault was not present long enough for the PCM to determine more specific fault. If a more specific DTC is set resolve it first.
PCM P2769:00 Torque Converter Clutch Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground in the TCC circuitry or a short in the TCC solenoid.
PCM P2770:00 Torque Converter Clutch Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to ground in the TCC circuitry or an open or short to voltage in the TCC solenoid circuitry.

Possible Sources

  • Circuit open or shorted
  • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
  • TCC or LPC solenoid
  • Transmission internal wiring harness
  • PCM
G1 CHECK THE TRANSMISSION SOLENOID POWER CONTROL 2 (TSPC2) CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect Transmission vehicle harness C168A .
  • Disconnect PCM C1381E .
  • Inspect the connectors for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-91   C168A-11

Is the resistance less than 3 ohms?
Yes GO to G2
No REPAIR the open circuit.

G2 CHECK THE TRANSMISSION SOLENOID POWER CONTROL 2 (TSPC2) CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-91   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to G3
No REPAIR the short to ground.

G3 CHECK THE SOLENOID CONTROL CIRCUITS FOR AN OPEN
  • Measure the resistance of the suspect solenoid control circuit using the following chart:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
    LPC Solenoid C1381E-73   C168A-24
    TCC Solenoid C1381E-66   C168A-25

Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to G4
No REPAIR the open circuit.

G4 CHECK THE SOLENOID CONTROL CIRCUITS FOR A SHORT TO GROUND
  • Measure the resistance of the suspect solenoid control circuit to ground using the following chart:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
    LPC Solenoid C1381E-73   Ground
    TCC Solenoid C1381E-66   Ground

Is the resistance greater than 10,000 ohms on the suspect circuit?
Yes GO to G5
No REPAIR the short to ground.

G5 CHECK THE SOLENOID CONTROL CIRCUITS FOR A SHORT TO POWER
  • Ignition ON.
  • Measure the voltage present on the suspect solenoid control circuit using the following chart:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
    LPC Solenoid C1381E-73   Ground
    TCC Solenoid C1381E-66   Ground

Is any voltage present on the suspect circuit?
Yes REPAIR the short to power.
No GO to G6

G6 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS SOLENOID CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Drain the transmission fluid and remove the transmission fluid pan.
    REFER to: Transmission Fluid Pan, Gasket and Filter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect LPC C1840 .
  • Disconnect TCC C1841 .
  • Connect Transmission Vehicle Harness C168A .
  • For the LPC solenoid, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-73   Ground
      C1381E-91   Ground
  • For the TCC solenoid, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-66   Ground
      C1381E-91   Ground

Are the resistances greater than 10,000 ohms on the suspect circuits?
Yes GO to G7
No INSTALL a new transmission internal wiring harness (both pieces).
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

G7 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS SOLENOID CIRCUITS FOR AN OPEN
  • For the LPC solenoid, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-73   C1840-2
      C1381E-91   C1840-1
  • For the TCC solenoid, measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1381E-66   C1841-2
      C1381E-91   C1841-1

Are the resistances less than 3 ohms on the suspect circuits?
Yes INSTALL a new solenoid.
REFER to: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
No INSTALL a new transmission internal wiring harness (both pieces).
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

PINPOINT TEST H : OSS (OUTPUT SHAFT SPEED) SENSOR, TSS (TURBINE SHAFT SPEED) SENSOR, INTERMEDIATE SPEED SENSOR A (ISSA) AND INTERMEDIATE SPEED SENSOR B (ISSB) PERFORMANCE DTCS

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

TSS Sensor

The TSS sensor is a Hall-effect type sensor that provides a signal to the PCM that changes in frequency as the rotating speed of the planetary carrier No. 2 varies. The PCM compares the TSS sensor signal with the engine speed information to determine the amount of slip occurring in the torque converter. The PCM also compares the TSS sensor signal with the OSS sensor signal to determine the gear ratio provided by the planetary carrier No. 4. The PCM uses the TSS sensor signal as an input for its shift strategies and TCC operation. The PCM also uses the TSS sensor signal for transmission fault detection and diagnostics.

OSS Sensor

The OSS sensor is a Hall-effect type sensor that provides a signal to the PCM that changes in frequency as the rotating speed of the rear planetary carrier No. 4 varies. The PCM also compares the OSS sensor signal with the TSS sensor signal to determine the gear ratio provided by the rear planetary gearset. The PCM uses the OSS sensor signal as an input for its shift strategies and TCC operation. The PCM also uses the OSS sensor signal for transmission fault detection and diagnostics.

Intermediate Speed Sensors A and B

The intermediate speed sensors A (ISSA) and B (ISSB) are hall-effect type sensors that provide a signal to the PCM that changes in frequency as the rotating speed of the component being monitored changes. ISSA monitors the speed and rotational direction of ring gear 1 and ISSB monitors the speed and rotational direction of planetary carrier-1/ring gear 4. The intermediate speed sensors are used to monitor clutch states for transmission fault detection and diagnostics.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0716:00 Input/Turbine Shaft Speed Sensor "A" Circuit Range/Performance: No Sub Type Information This DTC sets if the PCM detects too large of a sensor air gap, a TSS sensor fault or an undetected clutch fault.
PCM P0721:00 Output Shaft Speed Sensor Circuit Range/Performance: No Sub Type Information This DTC sets if the PCM detects too large of a sensor air gap, an OSS sensor fault or an undetected clutch fault.
PCM P0792:00 Intermediate Shaft Speed Sensor "A" Circuit Range/Performance: No Sub Type Information This DTC sets if the PCM detects too large of a sensor air gap, an ISSA fault or an undetected clutch fault.
PCM P2746:00 Intermediate Shaft Speed Sensor "B" Circuit Range/Performance: No Sub Type Information This DTC sets if the PCM detects too large of a sensor air gap, a ISSB fault or an undetected clutch fault.

Possible Sources

  • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
  • TSS sensor
  • OSS sensor
  • ISSA
  • ISSB
H1 CHECK FOR DTCS
  • Using a diagnostic scan tool, perform the PCM self-test.
  • If any other speed sensor DTCs are present resolve them first.

Are DTCs P0716, P0721, P0792, P2746 present?
Yes For DTC P0716, GO to H2
For DTC P0721, GO to H3
For DTC P0792, GO to H4
For DTC P2746, GO to H5
No For all other DTCs refer to the DTC chart. Otherwise the fault may be intermittent.

H2 CHECK TSS SENSOR
  • If any other TSS sensor DTCs are present resolve them first. If DTC P0716 is present alone, inspect the TSS electrical connections for loose connections. Confirm the TSS sensor is not loose. Inspect the TSS tone wheel (part of planetary carrier No. 2 ) for damage.

Were any issues found?
Yes REPAIR wiring connections or INSTALL new parts as necessary.
No INSTALL a new TSS sensor.
REFER to: Turbine Shaft Speed (TSS) Sensor (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

H3 CHECK OSS SENSOR
  • If any other OSS sensor DTCs are present resolve them first. If DTC P0721 is present alone, Inspect the OSS electrical connections for loose connections. Visually check the air gap and confirm the OSS sensor is not loose. Inspect the OSS tone wheel (part of planetary carrier No. 4 ) for damage.

Were any issues found?
Yes REPAIR wiring connections or INSTALL new parts as necessary.
No INSTALL a new OSS sensor.
REFER to: Output Shaft Speed (OSS) Sensor (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

H4 CHECK INTERMEDIATE SHAFT SPEED SENSOR (ISSA) "A"
  • If any other ISSA DTCs are present resolve them first. If DTC P0792 is present alone, Inspect the ISSA electrical connections for loose connections. Visually check the air gap and confirm the ISSA is not loose. Inspect ISSA trigger wheel (part of the No. 1 ring gear) for damage.

Were any issues found?
Yes REPAIR wiring connections or INSTALL new parts as necessary.
No INSTALL a new ISSA.
REFER to: Intermediate Speed Sensor A (ISSA) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

H5 CHECK INTERMEDIATE SHAFT SPEED SENSOR (ISSB) "B"
  • If any other ISSB DTCs are present resolve them first. If DTC P2746 is present alone, Inspect the ISSB electrical connections for loose connections. Visually check the air gap and confirm the ISSB is not loose. Inspect the OSS trigger wheel (part of the clutch and planetary container cylinder) for damage.

Were any issues found?
Yes REPAIR wiring connections or INSTALL new parts as necessary.
No INSTALL a new ISSB.
REFER to: Intermediate Speed Sensor B (ISSB) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

PINPOINT TEST I : PARK LOCK PAWL SOLENOID

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

The park lock pawl solenoid locks the park lock pawl valve when energized, either in the park position or the out of park position. When the engine is running, line pressure attempts to move the park lock pawl valve, but is unable to do so until the park lock pawl solenoid is released. The park lock pawl solenoid pin is normally extended, but when it is not energized, the park lock pawl valve is able to push the solenoid pin in, allowing the system to move into or out of park. When the solenoid is energized, the pin locks in the extended position. The park lock pawl solenoid is used to keep the vehicle out of park during stay in neutral mode and during start stop events.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P07E4:00 Unable to Engage Park: No Sub Type Information This DTC sets if the PCM park lock pawl actuator circuit performance detects that the movement to Park timed out.
PCM P07E6:00 Stuck in Park: No Sub Type Information This DTC sets if the PCM detects the transmission is stuck in Park. This may indicate a stuck park lock pawl solenoid (pin stuck), B or D clutch stuck off, line pressure stuck low, sticking park servo valve (possible contamination), park system hardware fault.
PCM P2888:00 Park Lock/Pawl Actuator Circuit/Open: No Sub Type Information This DTC sets if the PCM detects a open circuit fault or poor connection in the park lock pawl solenoid wiring, or a faulty park lock pawl solenoid.
PCM P2889:00 Park Lock/Pawl Actuator Circuit Low: No Sub Type Information This DTC sets if the PCM detects a short to ground circuit fault in the park lock pawl solenoid wiring, or a faulty park lock pawl solenoid.
PCM P288A:00 Park Lock/Pawl Actuator Circuit High: No Sub Type Information This DTC sets if the PCM detects a short to power circuit fault in the park lock pawl solenoid or circuitry.
PCM P288B:00 Park Lock/Pawl Actuator Circuit Performance: No Sub Type Information This DTC sets if the PCM detects a circuit fault in the park lock pawl solenoid or circuitry and the park lock pawl solenoid is functionally stuck off. This DTC may also be set when the driver selects the stay in neutral mode and the system recognizes that the system cannot keep the park valve locked out of park. Under these conditions the park valve returns to the park position uncommanded. A start stop event was attempted but the park lock pawl solenoid did not keep the transmission out of park disabling the start stop function.

Possible Sources

  • Park is manually released
  • Low line pressure
  • Circuit open or shorted
  • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
  • Transmission internal wiring harness
  • Park lock pawl solenoid
  • PCM
I1 RETRIEVE AND RECORD ALL DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, retrieve all diagnostic trouble codes (DTCs) from the PCM.

Are diagnostic trouble codes (DTCs) P07E4, P07E6, P2888, P2889, P288A, P288B present?
Yes If diagnostic trouble codes (DTCs) P2888, P2889, P288A, P288B are present, RESOLVE those first. GO to I4
For DTC P07E4, GO to I2
For DTC P07E6, GO to I3
No If no diagnostic trouble codes (DTCs) are set, but a symptom is present,
REFER to: Diagnosis By Symptom (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If there are no diagnostic trouble codes (DTCs) and no symptoms present, the system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or terminal issues.

I2 CONFIRM PARK IS NOT MANUALLY OVERRIDDEN
  • KOEO
  • Access the  PCM  and monitor the  TR_PARK_STAT  PID


Does PID TR_PARK_STAT indicate the transmission is in mechanical Park override?
Yes Remove the transmission from mechanical Park override.
REFER to: Transmission Park by Wire Manual Release (307-05A Automatic Transmission External Controls - 10-Speed Automatic Transmission – 10R60, General Procedures).
No GO to I4

I3 CHECK LINE PRESSURE

NOTE: The shift-by-wire variant of the 10R transmission uses hydraulic pressure to move the park lock pawl valve out of park.

  • Carry out the line pressure test.
    REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).

Is line pressure within specification?
Yes GO to I4
No Use the Line Pressure Diagnosis Chart for further diagnosis.
REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).

I4 CHECK THE PARK LOCK PAWL SOLENOID TASV CIRCUIT FOR POWER
  • Ignition OFF.
  • Disconnect Transmission vehicle harness C168A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-12   Ground

Is the voltage greater than 11 volts?
Yes GO to I7
No GO to I5

I5 CHECK THE PARK LOCK PAWL SOLENOID TASV CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect PCM C1381E .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-12   C1381E-95

Is the resistance less than 3 ohms?
Yes GO to I6
No REPAIR the open circuit.

I6 CHECK THE PARK LOCK PAWL SOLENOID TASV CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-12   Ground

Is the resistance greater than 10, 000 ohms?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No REPAIR the short to ground.

I7 CHECK THE PARK LOCK PAWL SOLENOID CONTROL CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect PCM C1381E .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-26   C1381E-87

Is the resistance less than 3 ohms?
Yes GO to I8
No REPAIR the open circuit.

I8 CHECK THE PARK LOCK PAWL SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-26   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to I9
No REPAIR the short to ground.

I9 CHECK THE PARK LOCK PAWL SOLENOID CONTROL CIRCUIT FOR A SHORT TO POWER
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C168A-26   Ground

Is any voltage present?
Yes REPAIR the short to power.
No GO to I10

I10 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS FOR AN OPEN
  • Ignition OFF.
  • Drain the transmission fluid and remove the transmission fluid pan.
    REFER to: Transmission Fluid Pan, Gasket and Filter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Disconnect Park lock pawl solenoid C178 .
  • Disconnect Transmission fluid auxiliary pump C1792 .
  • Connect Transmission vehicle harness C168A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C178-1   C1381E-95
      C178-2   C1381E-87

Are the resistances less than 3 ohms?
Yes GO to I11
No INSTALL a new transmission internal wiring harness (both pieces).
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

I11 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C178-1   Ground
      C178-2   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to I12
No INSTALL a new transmission internal wiring harness (both pieces).
REFER to: Transmission Internal Wiring Harness (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

I12 CHECK THE RESISTANCE OF THE PARK LOCK PAWL SOLENOID
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Park lock pawl solenoid component side pin 1 Park lock pawl solenoid component side pin 2

Is the resistance between 17 and 27 ohms?
Yes GO to I13
No INSTALL a new park lock pawl solenoid.
REFER to: Park Lock Pawl Solenoid (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

I13 CHECK THE PARK LOCK PAWL SOLENOID FOR A SHORT TO GROUND
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Park lock pawl solenoid component side pin 1   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to I14
No INSTALL a new park lock pawl solenoid.
REFER to: Park Lock Pawl Solenoid (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

I14 CHECK PARK LOCK PAWL SOLENOID OPERATION
  • Ignition OFF.
  • Connect PCM C1381E .
  • Connect Park lock pawl solenoid C178 .
  • Connect Transmission fluid auxiliary pump C1792 .
  • Remove the park lock pawl solenoid, but leave the wiring harness connected.
    REFER to: Park Lock Pawl Solenoid (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Push on the park lock pawl solenoid pin with the ignition ON and with the ignition OFF.

Does the park lock pawl solenoid pin resist motion with the ignition ON and move with the ignition OFF?
Yes The park lock pawl solenoid is operating correctly at this time.
For DTC P2888, P2889 and/or P288A, INSPECT and CONNECT all electrical connectors, CLEAR the DTC, then CARRY OUT the KOEO PCM self-test. If DTC P2888, P2889 and/or P288A returns,
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures). For DTC P07E4, P07E6, and/or P288B, RESOLVE the park engagement symptom.
REFER to: Diagnosis By Symptom (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No INSTALL a new park lock pawl solenoid.
REFER to: Park Lock Pawl Solenoid (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).

PINPOINT TEST J : DTC P0218, P1783

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

The PCM monitors transmission temperature and if it exceeds normal operating temperatures it sets a DTC. It may even limit powertrain torque to prevent damage to the transmission.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0218:00 Transmission Fluid Temperature Sensor "A" Over Temperature Condition: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the PCM detects a transmission overheating concern and may limit torque to prevent critical transmission overheating. The DTC P0218 may set in conjunction with DTC P1783.
PCM P1783:00 Transmission Overtemperature Condition: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the PCM detects a transmission overheating concern and may limit torque to prevent critical transmission overheating. The DTC P0218 may set in conjunction with DTC P1783.

Possible Sources

  • Transmission overheating concern
J1 RECHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • NOTE: P0218 causes the powertrain to limit torque to prevent transmission overheating. DTC P0218 may set in conjunction with DTC P1783. Using a diagnostic scan tool, clear the DTCs for the PCM.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are DTCs P0218, P1783 still present?
Yes If DTC P0218 or P1783 returns,
REFER to: Transmission Cooling (307-02A Transmission Cooling - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The system is operating correctly at this time. The DTC may have been set due to an extreme driving conditions.

PINPOINT TEST K : DTC P0702, P0882, P0883, P1397

Refer to Wiring Diagrams Cell 30 for schematic and connector information.

Normal Operation and Fault Conditions

The PCM monitors the supplied voltage and sets a DTC if supply voltage rises below or above threshold.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0702:00 Transmission Control System Electrical: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the PCM detects the supply voltage is greater than 16 volts.
PCM P0882:00 TCM Power Input Signal Low: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the PCM detects the supply voltage is lower than 9 volts.
PCM P0883:00 TCM Power Input Signal High: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the PCM detects the supply voltage is greater than 16 volts.
PCM P1397:00 System Voltage Out Of Self Test Range: No Sub Type Information Sets in continuous memory and during the on-demand self-test when the PCM detects the supply voltage is greater than 16 volts.

Possible Sources

  • Charging system concern
  • High resistance ground condition
  • Low voltage to the PCM
NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.
K1 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE) IN THE SUSPECT MODULE
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are DTCs P0702, P0882, P0883, P1397 still present?
Yes GO to K2
No The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

K2 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging or over-voltage related DTCs present in multiple modules?
Yes DIAGNOSE the overcharging condition.
REFER to: Charging System (414-00 Charging System - General Information, Diagnosis and Testing).
No If the PCM won't communicate with the scan tool,
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing).

PINPOINT TEST L : DTC P0731

Normal Operation and Fault Conditions

The PCM monitors clutch applications for all gears. It sets a DTC if it detects ratio errors but is unable to detect which clutch caused the issue. The symptoms may be delayed gear engagements, the transmission logic disables the gear in question.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0731:00 Gear 1 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to first gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled first gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • A solenoid or A clutch damaged
  • B solenoid or B clutch damaged
  • E solenoid or E clutch damaged
L1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0731 present in the PCM?
Yes
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST M : DTC P0732

Normal Operation and Fault Conditions

The PCM monitors clutch applications for all gears. It sets a DTC if it detects ratio errors but is unable to detect which clutch caused the issue. The symptoms may be delayed gear engagements, the transmission logic disables the gear in question.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0732:00 Gear 2 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to second gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled second gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • A solenoid or A clutch damaged
  • B solenoid or B clutch damaged
  • C solenoid or C clutch damaged
  • D solenoid or D clutch damaged
M1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0732 present in the PCM?
Yes
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST N : DTC P0733

Normal Operation and Fault Conditions

The PCM monitors clutch applications for all gears. It sets a DTC if it detects ratio errors but is unable to detect which clutch caused the issue. The symptoms may be delayed gear engagements, the transmission logic disables the gear in question.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0733:00 Gear 3 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to third gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled third gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • A solenoid or A clutch damaged
  • C solenoid or C clutch damaged
  • D solenoid or D clutch damaged
  • E solenoid or E clutch damaged
N1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0733 present in the PCM?
Yes
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST O : DTC P0734

Normal Operation and Fault Conditions

The PCM monitors clutch applications for all gears. It sets a DTC if it detects ratio errors but is unable to detect which clutch caused the issue. The symptoms may be delayed gear engagements, the transmission logic disables the gear in question.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0734:00 Gear 4 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to fourth gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled fourth gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • A solenoid or A clutch damaged
  • C solenoid or C clutch damaged
  • D solenoid or D clutch damaged
  • F solenoid or F clutch damaged
O1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0734 present in the PCM?
Yes
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST P : DTC P0735

Normal Operation and Fault Conditions

The PCM monitors clutch applications for all gears. It sets a DTC if it detects ratio errors but is unable to detect which clutch caused the issue. The symptoms may be delayed gear engagements, the transmission logic disables the gear in question. If multiple incorrect gear ratio DTCs are set, look for common clutch involved in the operation of those gear applications. If no common clutch errors are found look for line pressure or pump pressure issues.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0735:00 Gear 5 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to fifth gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled fifth gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • A solenoid or A clutch damaged
  • C solenoid or C clutch damaged
  • E solenoid or E clutch damaged
  • F solenoid or F clutch damaged
P1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0735 present in the PCM?
Yes
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST Q : DTC P0729

Normal Operation and Fault Conditions

The PCM monitors clutch applications for all gears. It sets a DTC if it detects ratio errors but is unable to detect which clutch caused the issue. The symptoms may be delayed gear engagements, the transmission logic disables the gear in question.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0729:00 Gear 6 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to sixth gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled sixth gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • A solenoid or A clutch damaged
  • D solenoid or D clutch damaged
  • E solenoid or E clutch damaged
  • F solenoid or F clutch damaged
Q1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0729 present in the PCM?
Yes
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST R : DTC P0736

Normal Operation and Fault Conditions

The PCM monitors clutch applications for all gears. It sets a DTC if it detects ratio errors but is unable to detect which clutch caused the issue. The symptoms may be delayed gear engagements, the transmission logic disables the gear in question.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0736:00 Reverse Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to reverse gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled reverse gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • A solenoid or A clutch damaged
  • B solenoid or B clutch damaged
  • D solenoid or D clutch damaged
  • F solenoid or F clutch damaged
R1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0736 present in the PCM?
Yes
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST S : DTC P0741

Normal Operation and Fault Conditions

The PCM monitors clutch applications if a non electrical fault is detected for the TCC a DTC is set in memory.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0741:00 Torque Converter Clutch Solenoid Circuit Performance/Stuck Off: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to first gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled first gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission may overheat if the TCC is continuously open
  • TCC valve body control valve stuck off
  • Seal faults causing loss of pressure
  • TCC mechanical failure
S1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0741 present in the PCM?
Yes
REFER to: Torque Converter Clutch (TCC) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST T : DTC P076F

Normal Operation and Fault Conditions

The PCM monitors clutch applications if a non electrical fault is detected for the TCC a DTC is set in memory.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P076F:00 Gear 7 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to seventh gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled seventh gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • C solenoid or C clutch damaged
  • D solenoid or D clutch damaged
  • E solenoid or E clutch damaged
  • F solenoid or F clutch damaged
T1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P076F present in the PCM?
Yes
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST U : DTC P07D9

Normal Operation and Fault Conditions

The PCM monitors clutch applications if a non electrical fault is detected for the TCC a DTC is set in memory.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P07D9:00 Gear 8 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to eighth gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled eighth gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • B solenoid or B clutch damaged
  • D solenoid or D clutch damaged
  • E solenoid or E clutch damaged
  • F solenoid or F clutch damaged
U1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P07D9 present in the PCM?
Yes
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST V : DTC P07F6

Normal Operation and Fault Conditions

The PCM monitors clutch applications if a non electrical fault is detected for the TCC a DTC is set in memory.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P07F6:00 Gear 9 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to ninth gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled ninth gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • B solenoid or B clutch damaged
  • C solenoid or C clutch damaged
  • E solenoid or E clutch damaged
  • F solenoid or F clutch damaged
V1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P07F6 present in the PCM?
Yes
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST W : DTC P07F7

Normal Operation and Fault Conditions

The PCM monitors clutch applications if a non electrical fault is detected for the TCC a DTC is set in memory.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P07F7:00 Gear 10 Incorrect Ratio: No Sub Type Information The PCM detected ratio errors 4 times either in or while shifting to tenth gear. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled tenth gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • B solenoid or B clutch damaged
  • C solenoid or C clutch damaged
  • D solenoid or D clutch damaged
  • F solenoid or F clutch damaged
W1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P07F7 present in the PCM?
Yes
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST X : DTC P0751, P0756, P0761, P0766, P0771, P2707

Normal Operation and Fault Conditions

The PCM monitors clutch applications. It sets a DTC if it detects a non-electrical fault that causes a clutch to fail to apply.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0751:00 Shift Solenoid "A" Performance/Stuck Off: No Sub Type Information DTC P0751 is a non-electrical failure indicating the A clutch failed to apply. When this DTC sets the failsafe logic disables all gears that use clutch A. Clutch A is used for 1st through 6th gears and only allows 7 through 10 gears.
PCM P0756:00 Shift Solenoid "B" Performance/Stuck Off: No Sub Type Information DTC P0756 is a non-electrical failure indicating the B clutch failed to apply. When this DTC sets the failsafe logic disables all gears that use clutch B. Clutch B is on in Reverse, 1st and 2nd gears with engine braking, 8th, 9th and 10th gears.
PCM P0761:00 Shift Solenoid "C" Performance/Stuck Off: No Sub Type Information DTC P0761 is a non-electrical failure indicating the C clutch failed to apply. When this DTC sets the failsafe logic disables all gears that use clutch C. Clutch C is used for 2nd, 3rd, 4th, 5th, 7th, 9th and 10th gears, so it only allows 6th, 8th and R.
PCM P0766:00 Shift Solenoid "D" Performance/Stuck Off: No Sub Type Information DTC P0766 is a non-electrical failure indicating the D clutch failed to apply. When this DTC sets the failsafe logic disables all gears that use clutch D. Clutch D is used for R, 2nd, 3rd, 4th, 6th, 7th, 8th and 10th gears, so it only allows 5th, 9th gears.
PCM P0771:00 Shift Solenoid "E" Performance/Stuck Off: No Sub Type Information DTC P0771 is a non-electrical failure indicating the E clutch failed to apply. When this DTC sets the failsafe logic disables all gears that use clutch E. Clutch E is used for 1st, 3rd, 5th, 6th, 7th, 8th, and 9th gear. and only allows 2nd, 4th, 10th, and R gears.
PCM P2707:00 Shift Solenoid "F" Performance/Stuck Off: No Sub Type Information DTC P2707 is a non-electrical failure indicating the F clutch failed to apply. When this DTC sets the failsafe logic disables all gears that use clutch F. Clutch F is used for R, 4M, 5M, 6M, 7M, 8M, 9M, 10M.

Possible Sources

  • Shift solenoid stuck off
  • Stuck control valve
  • Contamination in the main control
  • Clutch damaged
  • Faulty seal
X1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the DTCs for the PCM.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are DTCs P0751, P0756, P0761, P0766, P0771, P2707 present in the PCM?
Yes DTC P0751, For A clutch Does Not Apply symptom,
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0756, For B clutch Does Not Apply symptom,
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0761, For C clutch Does Not Apply symptom,
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0766, For D clutch Does Not Apply symptom,
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0771, For E clutch Does Not Apply symptom,
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P2707, For F clutch Does Not Apply symptom,
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST Y : DTC P0752, P0757, P0762, P0767, P0772, P2708, P2758

Normal Operation and Fault Conditions

The PCM monitors clutch applications. It sets a DTC if it detects a non-electrical fault that causes a clutch to fail to release. The customer may experience erratic vehicle operation when one of these diagnostic trouble codes (DTCs) are set.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0752:00 Shift Solenoid "A" Stuck On: No Sub Type Information DTC P0752 is a non-electrical failure indicating the A clutch stayed applied when SSA was de-energized. When this DTC sets the failsafe logic disables all gears that operate when clutch A is on, this condition only allows gears 1 through 6, and R.
PCM P0757:00 Shift Solenoid "B" Stuck On: No Sub Type Information DTC P0757 is a non-electrical failure indicating the B clutch stayed applied when SSB was de-energized. When this DTC sets the failsafe logic disables all gears that operate when clutch B is on, this condition only allows gears 1, 2, 8, 10, R.
PCM P0762:00 Shift Solenoid "C" Stuck On: No Sub Type Information DTC P0762 is a non-electrical failure indicating the C clutch stayed applied when SSC was de-energized. When this DTC sets the failsafe logic disables all gears that operate when clutch C is on, this condition only allows 2 through 5, and 7, 9, 10 gears.
PCM P0767:00 Shift Solenoid "D" Stuck On: No Sub Type Information DTC P0767 is a non-electrical failure indicating the D clutch stayed applied when SSD was de-energized. When this DTC sets the failsafe logic disables all gears that operate when clutch D is on, this condition only allows gears 1 through 4, 6-8, 10th and R.
PCM P0772:00 Shift Solenoid "E" Stuck On: No Sub Type Information DTC P0772 is a non-electrical failure indicating the E clutch stayed applied when SSE was de-energized. When this DTC sets the failsafe logic disables all gears that operate when clutch E is on, this condition only allows gears 1, 3, 5 through 9.
PCM P2708:00 Shift Solenoid "F" Stuck On: No Sub Type Information DTC P2708 is a non-electrical failure indicating the F clutch stayed applied when SSF was de-energized. When this DTC sets the failsafe logic disables all gears that operate when clutch F is on, this condition only allows gears 4 through 10, R.
PCM P2758:00 Torque Converter Clutch Pressure Control Solenoid Stuck On: No Sub Type Information DTC P2758 is a non-electrical failure indicating the TCC stayed applied when the TCC solenoid was de-energized. When this DTC sets the vehicle may experience engine stalling, lugging, poor shift quality.

Possible Sources

  • Shift solenoid stuck on
  • Stuck control valve
  • Contamination in the main control
  • Clutch damaged
  • Faulty seal
  • TCC
Y1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the DTC from the PCM.
  • Road test the vehicle.
  • Using a diagnostic scan tool, retrieve all PCM continuous memory diagnostic trouble codes (CMDTCs).

Are DTC P0752, P0757, P0762, P0767, P0772, P2708, P2758 present in the PCM?
Yes DTC P0752, A clutch Always Applied symptom,
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0757, B clutch Always Applied symptom,
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0762, C clutch Always Applied symptom,
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0767, D clutch Always Applied symptom,
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P0772, E clutch Always Applied symptom,
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P2708, F clutch Always Applied symptom,
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). DTC P2758, TCC Always Applied symptom,
REFER to: Torque Converter Clutch (TCC) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST Z : DTC P0868

Normal Operation and Fault Conditions

The PCM monitors the transmission fluid pressure at all times to insure proper transmission operation. It sets a DTC if it detects low pressure.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P0868:00 Transmission Fluid Pressure Low: No Sub Type Information The PCM detected multiple clutch stuck off DTCs. This DTC may set in conjunction with P0751, P0756, P0761, P0766, P0771 or P2707. The ratio error did not last long enough for the PCM to isolate the fault to a specific clutch. The logic disabled fifth gear for the remainder of the current key cycle the fault occurred in. The DTC self clears after 40 warm up cycles have been completed without detecting the fault again.

Possible Sources

  • Transmission fluid contamination
  • Pump failure
Z1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTCs for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P0868 present in the PCM?
Yes CLEAR the DTC. Road test vehicle, if DTC P0868 returns, If DTCs P0751, P0756, P0761, P0766, P0771 or P2707 are set, TEST for low pump pressure or fluid contamination. PERFORM the line pressure test.
REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST AA : DTC P2700, P2701, P2702, P2703, P2704, P2705

Normal Operation and Fault Conditions

The PCM monitors clutch applications if a non electrical fault is detected for the clutches a DTC is set in memory.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P2700:00 Transmission Friction Element "A" Apply Time Range/Performance: No Sub Type Information DTC is set with either P0751 or P0752, if either of these DTCs are set resolve them first.
PCM P2701:00 Transmission Friction Element "B" Apply Time Range/Performance: No Sub Type Information DTC is set with either P0756 or P0757, if either of these DTCs are set resolve them first.
PCM P2702:00 Transmission Friction Element "C" Apply Time Range/Performance: No Sub Type Information DTC is set with either P0761 or P0762, if either of these DTCs are set resolve them first.
PCM P2703:00 Transmission Friction Element "D" Apply Time Range/Performance: No Sub Type Information DTC is set with either P0766 or P0767, if either of these DTCs are set resolve them first.
PCM P2704:00 Transmission Friction Element "E" Apply Time Range/Performance: No Sub Type Information DTC is set with either P0771 or P0772, if either of these DTCs are set resolve them first.
PCM P2705:00 Transmission Friction Element "F" Apply Time Range/Performance: No Sub Type Information DTC is set with either P2707 or P2708, if either of these DTCs are set resolve them first.

Possible Sources

  • Clutch stuck on
  • Clutch stuck off
  • Clutch damaged
AA1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are DTC P2700, P2701, P2702, P2703, P2704, P2705 present in the PCM?
Yes If either DTC P0751 or P0752 are set resolve them first, otherwise for DTC P2700,
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If either DTC P0756 or P0757 are set resolve them first, otherwise for DTC P2701,
REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If either DTC P0761 or P0762 are set resolve them first, otherwise for DTC P2702,
REFER to: C Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If either DTC P0766 or P0767 are set resolve them first, otherwise for DTC P2703,
REFER to: D Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If either DTC P0771 or P0772 are set resolve them first, otherwise for DTC P2704,
REFER to: E Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If either DTC P2707 or P2708 are set resolve them first, otherwise for DTC P2705,
REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST AB : DTC P1636

Normal Operation and Fault Conditions

The PCM contains Phoenix drivers, which are chips that control the low sides of the solenoid circuits to provide the commanded current. The main processor in the PCM communicates with the Phoenix drivers over a serial interface. The main processor sends the desired solenoid state, and the Phoenix drivers return circuit fault status information.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P1636:00 Inductive Signature Chip Communication Error: No Sub Type Information This DTC indicates an internal PCM loss of communication with the low side solenoid drivers. When communication is lost, the solenoid states become unknown, so the PCM opens the high side of the circuit, releasing all clutches. Only neutral is available with the TCC released and maximum line pressure.

Possible Sources

  • PCM fault
AB1 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DTC (DIAGNOSTIC TROUBLE CODE) P1636
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC from the PCM.
  • Repeat the following steps 2 times.
    • Start the engine.
    • Select Drive.
    • Wait 5 seconds.
    • Select Reverse.
    • Wait 5 seconds.
    • Select Park.
    • Ignition OFF.
  • Using a diagnostic scan tool, carry out the KOEO and KOER PCM self-tests.

Is DTC P1636 present in the PCM?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No GO to AB2

AB2 ROAD TEST THE VEHICLE AND RECHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DTC (DIAGNOSTIC TROUBLE CODE) P1636
  • Road test the vehicle.
  • Ignition OFF.
  • Road test the vehicle a second time.
  • Using a diagnostic scan tool, carry out the KOEO and KOER PCM self-tests.

Is DTC P1636 present in the PCM?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No The fault is not present at this time.

PINPOINT TEST AC : DTC P163E, P163F

Normal Operation and Fault Conditions

All CIDAS shift solenoids are calibrated from the factory, but not all solenoids are the same. Each solenoid is labelled with a band number, and each main control valve body has a 13-digit solenoid body strategy and a 12-digit solenoid body identification. This information must be downloaded into the PCM, or harsh shifts may occur.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P163E:00 Transmission Control Module Programming Error: No Sub Type Information This DTC indicates the transmission identification version is incorrect, the 7-digit service banding code checksum is invalid, or the total transmission identification block checksum is invalid.
PCM P163F:00 Transmission ID Block Corrupted, Not Programmed: No Sub Type Information This DTC indicates the transmission identification is not programmed in the PCM.

Possible Sources

  • Incorrect or corrupted PCM calibration.
  • PCM fault
AC1 PROGRAM THE TRANSMISSION IDENTIFICATION
  • Ignition ON.
  • Using a diagnostic scan tool, clear the diagnostic trouble codes (DTCs) from the PCM.
  • Carry out the transmission strategy download.
    REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
  • Using a diagnostic scan tool, carry out the KOEO and KOER PCM self-tests.

Is DTC P163E or P163F present in the PCM?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No The fault is not present at this time. It might have been caused by an incorrect or corrupted calibration.

PINPOINT TEST AD : DTC P1744

Normal Operation and Fault Conditions

The PCM monitors the TCC application and when it falls outside of expected performance ranges a DTC sets.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P1744:00 Torque Converter Clutch Solenoid Circuit Performance: No Sub Type Information P1744 is a non-electrical DTC, this DTC sets with DTC P0741 TCC stuck off) or DTC P2758 ( TCC stuck off) and is used to illuminate the wrench light.

Possible Sources

  • Transmission may overheat if the TCC is continuously open
  • TCC valve body control valve stuck off or on
  • Seal faults causing loss of pressure
  • TCC mechanical failure
AD1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Did DTC P1744 return?
Yes
REFER to: Diagnosis By Symptom (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault may be intermittent.

PINPOINT TEST AE : DTC P1A02

Normal Operation and Fault Conditions

The PCM monitors the one way clutch application and when it falls outside of expected performance ranges a DTC sets..

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P1A02:00 Transmission One Way Clutch Performance: No Sub Type Information This DTC sets if the PCM detects the one way clutch failed to engage gears 1A or 2A 3 times allowing sun gear 1 to rotate backwards. . When this DTC sets the failsafe logic disables 1st and 2nd gear.

Possible Sources

  • One way clutch failure
AE1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Did DTC P1A02 return?
Yes
REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul).
No The fault may be intermittent.

PINPOINT TEST AF : DTC P2783

Normal Operation and Fault Conditions

The PCM monitors the transmission fluid temperature at all times and if the TCC control valve is stuck in a position that provides no flow when the TCC is commanded off it may cause the TCC to overheat.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P2783:00 Torque Converter Temperature Too High: No Sub Type Information The TCC control valve is stuck in a position that provides no flow when the TCC is commanded off. The TCC pumps down when commanded off, causing loss of torque multiplication through the TCC. This can cause the TCC to overheat.

Possible Sources

  • Transmission fluid contamination
  • TCC solenoid failure
  • TCC failure
AF1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Road test the vehicle.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P2783 present in the PCM?
Yes
REFER to: Torque Converter Clutch (TCC) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No The fault is not present at this time and may be intermittent.

PINPOINT TEST AG : DTC P27B2, P27B3, P27B4, P27B5, P27B6

Normal Operation and Fault Conditions

The PCM monitors clutch engagements and when a fault occurs a DTC is set in memory.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P27B2:00 Internal Control Module Transmission Range Control Performance: No Sub Type Information The DTC sets if the PCM detects clutch faults that can cause an engagement in N, R in a forward gear, or forward in R.
PCM P27B3:00 Internal Control Module Transmission Gear Select Performance: No Sub Type Information The DTC sets if the PCM detects clutch faults that can cause tie-ups, a software error or speed sensor fault.
PCM P27B4:00 Internal Control Module Transmission Gear Direction Control Performance: No Sub Type Information
PCM P27B5:00 Internal Control Module Transmission Gear Ratio Control Performance: No Sub Type Information The DTC sets if the PCM detects clutch faults, or software errors.
PCM P27B6:00 Internal Control Module Transmission Speed Sensor Performance: No Sub Type Information The DTC sets if the PCM detects clutch faults, a speed sensor fault or software error.

Possible Sources

  • Clutch faults that cause an engagement in N, R, or a forward gear in R, reverse in a forward gear, or clutch tie up
  • Software error
AG1 CHECK FOR GSM (GEAR SHIFT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve all diagnostic trouble codes (DTCs) from the GSM.

Are any GSM diagnostic trouble codes (DTCs) present?
Yes RESOLVE GSM diagnostic trouble codes (DTCs) first.
REFER to: External Controls (307-05A Automatic Transmission External Controls - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No GO to AG2

AG2 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, clear all diagnostic trouble codes (DTCs) from the PCM.
  • Road test the vehicle.
  • In a parking lot, shift the vehicle between Park, Drive and Reverse, allowing the vehicle to move in both directions.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P27B2, P27B3, P27B4, P27B5 and/or P27B6 present in the PCM?
Yes GO to AG3
No The fault is not present at this time. If any symptoms are present, REFER to the Symptom Chart.

AG3 RETRIEVE ALL DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve all diagnostic trouble codes (DTCs) from the PCM self-test.

Are any shift solenoid, speed sensor, TR sensor, clutch engagement or module communication diagnostic trouble codes (DTCs) present?
Yes RESOLVE any shift solenoid, speed sensor, TR sensor or clutch engagement diagnostic trouble codes (DTCs) first. REFER to the DTC Chart
RESOLVE any module communication diagnostic trouble codes (DTCs) second. REFER to the DTC Chart.
No If any gear engagement symptoms are present, RESOLVE those first. REFER to the Symptom Chart.
If only P27B2, P27B3, P27B4, P27B5 and/or P27B6 are present with no symptoms, GO to AG4

AG4 PROGRAM THE PCM (POWERTRAIN CONTROL MODULE) WITH THE LATEST CALIBRATION
  • Using a diagnostic scan tool, clear all diagnostic trouble codes (DTCs) from the PCM.
  • Program the PCM with the latest calibration.
    REFER to: Module Programming (418-01 Module Configuration, General Procedures).
  • Carry out the transmission strategy download.
    REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
  • Road test the vehicle.
  • In a parking lot, shift the vehicle between Park, Drive and Reverse, allowing the vehicle to move in both directions.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P27B2, P27B3, P27B4, P27B5 and/or P27B6 present in the PCM?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No The concern is not present at this time. It might have been caused by a corrupted calibration.

PINPOINT TEST AH : DTC P1711

Normal Operation and Fault Conditions

The PCM monitors transmission fluid temperature during KOEO and KOER PCM self-tests, and assumes the self-tests will be run on a cold vehicle at room temperature.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P1711:00 Transmission Fluid Temperature Sensor Out Of Self Test Range: No Sub Type Information This DTC indicates the PCM detected the TFT sensor out of self-test range during a KOEO or a KOER self-test. The PCM expects a transmission fluid temperature reading between -1°C (30°F) and 120°C (248°F).

Possible Sources

  • Transmission fluid temperature outside of self-test range
  • Incorrect or corrupted PCM calibration.
AH1 CHECK THE TRANSMISSION FLUID TEMPERATURE
  • Ignition ON.
  • Access the  PCM  and monitor the  TFT (Deg C)  PID


Does PID TFT show between -1°C (30°F) and 104°C (220°F)?
Yes GO to AH2
No If the monitored temperature is plausible, either warm the transmission fluid temperature or let it cool into self-test range, then GO to AH2
If the monitored temperature is not plausible, GO to Pinpoint Test B

AH2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC from the PCM.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Is DTC P1711 present in the PCM?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No The fault is not present at this time and may have been caused by carrying out a self-test with the transmission fluid temperature out of the expected range.

PINPOINT TEST AI : DTC P1001

Normal Operation and Fault Conditions

The PCM only runs KOER test when the PCM confirms a the vehicle is in P or N and that there is no vehicle speed indicated.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P1001:00 KOER Not Able to Complete, KOER Aborted: No Sub Type Information May be caused by an incomplete or incorrect PCM configuration during the PMI process.

Possible Sources

  • Incomplete or incorrect PMI of the PCM.
AI1 CHECK CORRECT GEAR STATE IS ACHIEVED
  • Ignition ON.
  • Using a diagnostic scan tool, monitor the PID, Transmission Range (TR) Sensor Position - Corrected.
  • Select DRIVE.

Does the achieved gear range match the customer selected gear position?
Yes GO to AI2
No GO to Pinpoint Test C

AI2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the PCM.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Does DTC P1001 return?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No The fault may be intermittent.

PINPOINT TEST AJ : P1706

NOTE: The park pawl can be damaged by ratcheting too many times. Once the root cause of P1706 has been identified and repaired, the park pawl must be inspected to make sure it is free of damage and still capable of holding the vehicle.

Normal Operation and Fault Conditions

Park is normally only commanded when the vehicle is stopped or nearly stopped. If park is engaged while the vehicle is moving, the park pawl will ratchet on the teeth of planetary carrier assembly No. 4. The PCM monitors the park system position using the TR sensor. If the TR sensor shows the transmission is in park while the vehicle is moving, a DTC will set.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P1706:00 High Vehicle Speed Observed in Park: No Sub Type Information This DTC indicates the TR sensor reported the vehicle was in park while the vehicle was moving above a speed where park would be commanded. This would cause the park pawl to ratchet, which could damage the park pawl.

Possible Sources

  • Clutch stuck off fault
  • Hydraulic control fault
  • Unintended PCM reset
  • PCM fault
AJ1 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the KOEO and KOER PCM self-tests.

Are any power supply, internal module, TR sensor, clutch fault, or gear engagement fault diagnostic trouble codes (DTCs) present?
Yes RESOLVE those diagnostic trouble codes (DTCs) first. REFER to the DTC Chart.
No GO to AJ2

AJ2 CHECK THE GSM (GEAR SHIFT MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the GSM self-test.

Are any diagnostic trouble codes (DTCs) present in the GSM?
Yes RESOLVE those diagnostic trouble codes (DTCs).
REFER to: External Controls (307-05A Automatic Transmission External Controls - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No GO to AJ3

AJ3 CHECK THE OPERATION OF THE PARK SYSTEM
  • Access the  PCM  and monitor the  TR_PARK_STAT  PID

  • Start the engine.
  • Repeat the following steps 3 times while observing PID TR_PARK_STAT. Pause in each gear position.
    • Select Drive.
    • Select Park.
    • Select Reverse.
    • Select Park.

Does PID TR_PARK_STAT show In Park when park is selected and Out of Park when drive or reverse is selected?
Yes GO to AJ4
No To diagnose a stuck in park concern, see condition Engagement Quality > Park.
REFER to: Diagnosis By Symptom (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).

AJ4 ROAD TEST THE VEHICLE
  • Road test the vehicle. Pay attention for any gear engagement or shifting symptoms that could indicate a clutch fault or a park system fault.

Are any observable symptoms present?
Yes RESOLVE any observable symptoms.
REFER to: Diagnosis By Symptom (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
No GO to AJ5

AJ5 INSPECT THE TRANSMISSION PARK SYSTEM COMPONENTS
  • Remove the main control valve body.
    REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Remove the transmission fluid auxiliary pump.
    REFER to: Transmission Fluid Auxiliary Pump (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Inspect the park pawl and the park lock teeth on planetary carrier No. 4. Make sure the park lock teeth are not worn or damaged.
  • Inspect the park pawl, park pawl actuator rod, TR sensor, and park return spring. Make sure all components are properly installed and free of damage.
  • Remove and inspect the park lock pawl solenoid. Make sure the pin is not stuck.
    REFER to: Park Lock Pawl Solenoid (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
  • Remove and inspect the park lock pawl valve. If the valve or bore is damaged, INSTALL a new main control valve body.
    REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul).

Are any transmission park components worn, damaged, or improperly installed?
Yes INSTALL new components as necessary.
No GO to AJ6

AJ6 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear all diagnostic trouble codes (DTCs) from the PCM.
  • Access the  PCM  and monitor the  TR_PARK_STAT  PID

  • Road test the vehicle. Monitor PID TR_PARK_STAT to make sure park does not engage while moving.
  • Using a diagnostic scan tool, retrieve all diagnostic trouble codes (DTCs) from the PCM.

Is DTC P1706 present?
Yes
   Click here to access Guided Routine (PCM). Internet Explorer version 11 or greater is required to perform this Pinpoint Test. After programming the new PCM, CARRY OUT the transmission strategy download.
REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures).
No The fault is not present at this time.

PINPOINT TEST AK : P179D

Normal Operation and Fault Conditions

Vehicles with a 10R transmission should not be towed in neutral with the engine off and the drive tires on the ground. When the engine is off, there is no transmission fluid flow in the transmission, and therefore no lubrication. This will lead to internal transmission damage if the vehicle is towed in neutral with the engine off. In case of emergency, the vehicle may be towed in this manner, only up to 55 kph (35 mph) for a distance up to 80 km (50 miles).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PCM P179D:00 Neutral Mode Exceeded Speed/Distance Conditions: No Sub Type Information This DTC indicates the vehicle was towed in neutral with the engine off and drive tires on the ground for greater than 10 km (6 miles). If the vehicle is towed in this manner over 55 kmh (35 mph), or for greater than 80 km (50 miles), transmission damage may occur. If the customer uses the Ford Pass system, the app will notify the customer when this DTC sets.

Possible Sources

  • Towing the vehicle in neutral with the engine off
AK1 INSPECT THE TRANSMISSION FLUID FOR SIGNS OF WEAR
  • Collect a transmission fluid sample and inspect it for signs of wear.
    REFER to: Preliminary Inspection (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).

Does the transmission fluid condition indicate excessive wear?
Yes Overhaul the transmission.
REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). Carry out the transmission fluid cooler backflushing and cleaning procedure.
REFER to: Transmission Fluid Cooler - Backflushing and Cleaning (307-02A Transmission Cooling - 10-Speed Automatic Transmission – 10R60, General Procedures).
No GO to AK2

AK2 CHECK FOR SYMPTOMS OF INTERNAL TRANSMISSION DAMAGE
  • Using a diagnostic scan tool, clear the DTC from the PCM.
  • Road test the vehicle. Pay close attention for any noise, transmission engagement, or shifting concerns.
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are any gear engagement or clutch fault diagnostic trouble codes (DTCs) present, or are any noise, engagement, or shifting concerns present?
Yes Overhaul the transmission.
REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). Carry out the transmission fluid cooler backflushing and cleaning procedure.
REFER to: Transmission Fluid Cooler - Backflushing and Cleaning (307-02A Transmission Cooling - 10-Speed Automatic Transmission – 10R60, General Procedures).
No Internal transmission damage is not evident at this time. The vehicle may have been towed within the 55 kph (35 mph) and 80 km (50 miles) limits.


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