Ford Explorer: Climate Control System - General Information / Diagnosis and Testing - Climate Control System
Ford Explorer 2020-2024 Service Manual / Electrical / Climate Control System / Climate Control System - General Information / Diagnosis and Testing - Climate Control System
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 |
|---|---|---|---|
| ACCM | B11EE:19 | A/C Compressor: Circuit Current Above Threshold | GO to Pinpoint Test AI |
| ACCM | B11EE:41 | A/C Compressor: General Checksum Failure | GO to Pinpoint Test AR |
| ACCM | B11EE:4B | A/C Compressor: Over Temperature | GO to Pinpoint Test AI |
| ACCM | B11EE:92 | A/C Compressor: Performance or Incorrect Operation | GO to Pinpoint Test AI |
| ACCM | P0562:00 | System Voltage Low: No Sub Type Information | GO to Pinpoint Test AI |
| ACCM | P0563:00 | System Voltage High: No Sub Type Information | GO to Pinpoint Test AI |
| ACCM | P0AFA:16 | Hybrid/EV Battery System Voltage Low: Circuit Voltage Below Threshold | GO to Pinpoint Test AI |
| ACCM | P0AFB:17 | Hybrid/EV Battery System Voltage High: Circuit Voltage Above Threshold | GO to Pinpoint Test AI |
| ACCM | P0AFB:1C | Hybrid/EV Battery System Voltage High: Circuit Voltage Out of Range | GO to Pinpoint Test AI |
| ACCM | U0001:88 | High Speed CAN Communication Bus: Bus Off | GO to Pinpoint Test AO |
| ACCM | U0100:00 | Lost Communication with ECM/PCM "A": No Sub Type Information | GO to Pinpoint Test AK |
| ACCM | U0111:00 | Lost Communication With Battery Energy Control Module "A": No Sub Type Information | GO to Pinpoint Test AL |
| ACCM | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test Q |
| ACCM | U3000:04 | Control Module: System Internal Failure | GO to Pinpoint Test AR |
| ACCM | U3000:42 | Control Module: General Memory Failure | GO to Pinpoint Test AR |
| ACCM | U3000:49 | Control Module: Internal Electronic Failure | GO to Pinpoint Test AR |
| BCMC | B3A01:00 | A/C Refrigerant Distribution Valve Actuator "C" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AU |
| BCMC | B3A02:00 | A/C Refrigerant Distribution Valve Actuator "C" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AU |
| BCMC | B3A03:00 | A/C Refrigerant Distribution Valve Actuator "C" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AU |
| BCMC | P2611:00 | A/C Refrigerant Distribution Valve "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AS |
| BCMC | P2612:00 | A/C Refrigerant Distribution Valve "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AS |
| BCMC | P2613:00 | A/C Refrigerant Distribution Valve "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AS |
| BCMC | P2CFC:00 | A/C Clutch Control Circuit: No Sub Type Information | GO to Pinpoint Test B |
| BCMC | P2CFD:00 | A/C Clutch Control Circuit Low: No Sub Type Information | GO to Pinpoint Test B |
| BCMC | P2CFE:00 | A/C Clutch Control Circuit: No Sub Type Information | GO to Pinpoint Test B |
| BCMC | P2E62:00 | Engine Coolant Bypass Valve "E" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AT |
| BCMC | P2E63:00 | Engine Coolant Bypass Valve "E" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AT |
| BCMC | P2E64:00 | Engine Coolant Bypass Valve "E" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AT |
| HVAC | B102E:11 | Air Quality Sensor: Circuit Short To Ground | GO to Pinpoint Test X |
| HVAC | B102E:15 | Air Quality Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test X |
| HVAC | B102E:92 | Air Quality Sensor: Performance or Incorrect Operation | GO to Pinpoint Test X |
| HVAC | B1081:07 | Left Temperature Damper Motor: Mechanical Failure | GO to Pinpoint Test G |
| HVAC | B1081:11 | Left Temperature Damper Motor: Circuit Short To Ground | GO to Pinpoint Test G |
| HVAC | B1081:12 | Left Temperature Damper Motor: Circuit Short To Battery | GO to Pinpoint Test G |
| HVAC | B1081:13 | Left Temperature Damper Motor: Circuit Open | GO to Pinpoint Test G |
| HVAC | B1082:07 | Right Temperature Damper Motor: Mechanical Failure | GO to Pinpoint Test H |
| HVAC | B1082:11 | Right Temperature Damper Motor: Circuit Short To Ground | GO to Pinpoint Test H |
| HVAC | B1082:12 | Right Temperature Damper Motor: Circuit Short To Battery | GO to Pinpoint Test H |
| HVAC | B1082:13 | Right Temperature Damper Motor: Circuit Open | GO to Pinpoint Test H |
| HVAC | B1083:07 | Recirculation Damper Motor: Mechanical Failure | GO to Pinpoint Test J |
| HVAC | B1083:11 | Recirculation Damper Motor: Circuit Short To Ground | GO to Pinpoint Test J |
| HVAC | B1083:12 | Recirculation Damper Motor: Circuit Short To Battery | GO to Pinpoint Test J |
| HVAC | B1083:13 | Recirculation Damper Motor: Circuit Open | GO to Pinpoint Test J |
| HVAC | B1086:07 | Air Distribution Damper Motor: Mechanical Failure | GO to Pinpoint Test K |
| HVAC | B1086:11 | Air Distribution Damper Motor: Circuit Short To Ground | GO to Pinpoint Test K |
| HVAC | B1086:12 | Air Distribution Damper Motor: Circuit Short To Battery | GO to Pinpoint Test K |
| HVAC | B1086:13 | Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test K |
| HVAC | B10AF:11 | Blower Fan Relay: Circuit Short To Ground | GO to Pinpoint Test O |
| HVAC | B10AF:12 | Blower Fan Relay: Circuit Short To Battery | GO to Pinpoint Test P |
| HVAC | B10AF:13 | Blower Fan Relay: Circuit Open | GO to Pinpoint Test O |
| HVAC | B10AF:15 | Blower Fan Relay: Circuit Short To Battery or Open | GO to Pinpoint Test O |
| HVAC | B10AF:15 | Blower Fan Relay: Circuit Short To Battery or Open | GO to Pinpoint Test P |
| HVAC | B10B3:11 | Right Panel Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test Z |
| HVAC | B10B3:15 | Right Panel Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test Z |
| HVAC | B10B4:11 | Right Floor Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test Z |
| HVAC | B10B4:15 | Right Floor Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test Z |
| HVAC | B10B5:11 | Left Panel Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test Z |
| HVAC | B10B5:15 | Left Panel Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test Z |
| HVAC | B10B6:11 | Left Floor Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test Z |
| HVAC | B10B6:15 | Left Floor Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test Z |
| HVAC | B10B7:11 | Rear Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test AF |
| HVAC | B10B7:15 | Rear Air Discharge Temperature: Circuit Short To Battery or Open | GO to Pinpoint Test AF |
| HVAC | B10B8:63 | Push Buttons: Circuit / Component Protection Time-Out | GO to Pinpoint Test AH |
| HVAC | B10B9:12 | Blower Control: Circuit Short To Battery | GO to Pinpoint Test O |
| HVAC | B10B9:14 | Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test O |
| HVAC | B10B9:14 | Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test P |
| HVAC | B10BA:12 | Rear Blower Control: Circuit Short To Battery | GO to Pinpoint Test AC |
| HVAC | B10BA:14 | Rear Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test AC |
| HVAC | B10BA:14 | Rear Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test AD |
| HVAC | B11E3:07 | Rear HVAC Damper Motor: Mechanical Failure | GO to Pinpoint Test AF |
| HVAC | B11E3:11 | Rear HVAC Damper Motor: Circuit Short To Ground | GO to Pinpoint Test AF |
| HVAC | B11E3:12 | Rear HVAC Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AF |
| HVAC | B11E3:13 | Rear HVAC Damper Motor: Circuit Open | GO to Pinpoint Test AF |
| HVAC | B11E4:07 | Rear Air Distribution Damper Motor: Mechanical Failure | GO to Pinpoint Test AE |
| HVAC | B11E4:11 | Rear Air Distribution Damper Motor: Circuit Short to Ground | GO to Pinpoint Test AE |
| HVAC | B11E4:12 | Rear Air Distribution Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AE |
| HVAC | B11E4:13 | Rear Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test AE |
| HVAC | B11E5:11 | Left HVAC Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test G |
| HVAC | B11E5:15 | Left HVAC Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test G |
| HVAC | B11E6:11 | Right HVAC Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test H |
| HVAC | B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test H |
| HVAC | B11E7:11 | Air Distribution Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test K |
| HVAC | B11E7:15 | Air Distribution Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test K |
| HVAC | B11F0:11 | Air Intake Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test J |
| HVAC | B11F0:15 | Air Intake Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test J |
| HVAC | B12CA:11 | Start/Stop "Eco-Start" Status Indicator: Circuit Short To Ground | GO to Pinpoint Test AG |
| HVAC | B12CA:15 | Start/Stop "Eco-Start" Status Indicator: Circuit Short To Battery or Open | GO to Pinpoint Test AG |
| HVAC | B1A61:11 | Cabin Temperature Sensor: Circuit Short To Ground | GO to Pinpoint Test E |
| HVAC | B1A61:15 | Cabin Temperature Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test E |
| HVAC | B1A63:11 | Right Solar Sensor: No Sub Type Information | GO to Pinpoint Test Y |
| HVAC | B1A63:15 | Right Solar Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test Y |
| HVAC | B1A64:11 | Left Solar Sensor: No Sub Type Information | GO to Pinpoint Test Y |
| HVAC | B1A64:15 | Left Solar Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test Y |
| HVAC | B1A69:11 | Humidity Sensor: Circuit Short To Ground | GO to Pinpoint Test E |
| HVAC | B1A69:15 | Humidity Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test E |
| HVAC | B1A69:92 | Humidity Sensor: Performance or Incorrect Operation | GO to Pinpoint Test E |
| HVAC | B1B71:11 | Evaporator Temperature Sensor: Circuit Short To Ground | GO to Pinpoint Test F |
| HVAC | B1B71:15 | Evaporator Temperature Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test F |
| HVAC | B1B7D:11 | Rear Air Distribution Actuator: Circuit Short to Ground | GO to Pinpoint Test AE |
| HVAC | B1B7D:15 | Rear Air Distribution Actuator: Circuit Short To Battery or Open | GO to Pinpoint Test AE |
| HVAC | C1B14:11 | Sensor Supply Voltage A: Circuit Short to Ground | GO to Pinpoint Test AB |
| HVAC | C1B14:12 | Sensor Supply Voltage A: Circuit Short to Battery | GO to Pinpoint Test AB |
| HVAC | U0100:00 | Lost Communication with ECM/PCM "A": No Sub Type Information | GO to Pinpoint Test AK |
| HVAC | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test Q |
| HVAC | U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | GO to Pinpoint Test R |
| HVAC | U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub-Type Information | GO to Pinpoint Test S |
| HVAC | U0165:00 | Lost Communication With HVAC Control Module - Rear: No Sub Type Information | GO to Pinpoint Test U |
| HVAC | U0253:00 | Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | GO to Pinpoint Test V |
| HVAC | U0401:00 | Invalid Data Received from ECM/PCM A: No Sub-Type Information | GO to Pinpoint Test AP |
| HVAC | U0401:82 | Invalid Data Received from ECM/PCM A: Alive / Sequence Counter Incorrect / Not Updated | GO to Pinpoint Test AP |
| HVAC | U0422:68 | Invalid Data Received from Body Control Module: Event Information | GO to Pinpoint Test AP |
| HVAC | U0422:81 | Invalid Data Received from Body Control Module: Invalid Serial Data Received | GO to Pinpoint Test AP |
| HVAC | U0452:82 | Invalid Data Received From Restraints Control Module: Alive / Sequence Counter Incorrect / Not Updated | GO to Pinpoint Test AP |
| HVAC | U0466:68 | Invalid Data Received From HVAC Control Module - Rear: Event Information | GO to Pinpoint Test AP |
| HVAC | U1000:00 | Solid State Driver Protection Active -Driver Disabled: No Sub Type Information | GO to Pinpoint Test W |
| HVAC | U2024:51 | Control Module Cal-Config Data: Not Programmed | GO to Pinpoint Test AQ |
| HVAC | U2100:00 | Initial Configuration Not Complete: No Sub Type Information | GO to Pinpoint Test AQ |
| HVAC | U3000:41 | Control Module: General Checksum Failure | GO to Pinpoint Test AR |
| HVAC | U3000:49 | Control Module: Internal Electronic Failure | GO to Pinpoint Test AR |
| HVAC | U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test AM |
| HVAC | U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test AN |
| PCM | P0532:00 | A/C Refrigerant Pressure Sensor A Circuit Low: No Sub Type Information | GO to Pinpoint Test A |
| PCM | P0533:00 | A/C Refrigerant Pressure Sensor A Circuit High: No Sub Type Information | GO to Pinpoint Test A |
| PCM | P0645:00 | A/C Clutch Relay Control Circuit: No Sub Type Information | GO to Pinpoint Test B |
| PCM | P06A0:00 | Variable Compressor Control Circuit: No Sub Type Information | GO to Pinpoint Test C |
| PCM | P1464:00 | A/C Demand Out Of Self Test Range: No Sub Type Information | GO to Pinpoint Test N |
| PCM | P193E:00 | A/C Clutch Request Signal: No Sub Type Information | GO to Pinpoint Test AA |
| PCM | P2183:00 | Engine Coolant Temperature Sensor 2: Circuit Range/Performance | GO to Pinpoint Test AV |
| PCM | P2184:00 | Engine Coolant Temperature Sensor 2: Circuit Low | GO to Pinpoint Test AV |
| PCM | P2185:00 | Engine Coolant Temperature Sensor 2: Circuit High | GO to Pinpoint Test AV |
| PCM | P2186:00 | Engine Coolant Temperature Sensor 2: Circuit Intermittent/Erratic | GO to Pinpoint Test AV |
| PCM | P2600:00 | Coolant Pump "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2601:00 | Coolant Pump "A" Control Circuit Performance/Stuck Off: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2602:00 | Coolant Pump "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P2603:00 | Coolant Pump "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test D |
| PCM | P26BE:00 | Engine Coolant Bypass Valve "D" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AX |
| PCM | P26BF:00 | Engine Coolant Bypass Valve "D" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AX |
| RHVAC | B10B8:63 | Push Buttons: Circuit / Component Protection Time-Out | GO to Pinpoint Test AH |
| RHVAC | U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test Q |
| RHVAC | U0164:00 | Lost Communication With HVAC Control Module: No Sub Type Information | GO to Pinpoint Test T |
| RHVAC | U3000:41 | Control Module: General Checksum Failure | GO to Pinpoint Test AR |
| RHVAC | U3000:42 | Control Module: General Memory Failure | GO to Pinpoint Test AR |
| RHVAC | U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test AM |
| RHVAC | U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test AN |
| SOBDMC | P01EB:96 | Engine Coolant Heater "A" Control Circuit Performance: Component Internal Failure | GO to Pinpoint Test AJ |
| SOBDMC | P0531:00 | A/C Refrigerant Pressure Sensor "A" Circuit Range/Performance: No Sub Type Information | GO to Pinpoint Test A |
| SOBDMC | P0534:00 | A/C Refrigerant Charge Loss: No Sub Type Information | GO to Pinpoint Test A |
| SOBDMC | P0D6D:00 | A/C Compressor Motor Voltage "A" Low: No Sub Type Information | GO to Pinpoint Test AI |
| SOBDMC | P0D6F:00 | A/C Compressor Motor Current High: No Sub Type Information | GO to Pinpoint Test AI |
| SOBDMC | P0D71:00 | A/C Compressor Control Module Internal Temperature Sensor Performance: No Sub Type Information | GO to Pinpoint Test AI |
| SOBDMC | P2611:00 | A/C Refrigerant Distribution Valve "A" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AS |
| SOBDMC | P2612:00 | A/C Refrigerant Distribution Valve "A" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AS |
| SOBDMC | P2613:00 | A/C Refrigerant Distribution Valve "A" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AS |
| SOBDMC | P26FD:00 | A/C Compressor Internal Control Module Performance: No Sub Type Information | GO to Pinpoint Test AI |
| SOBDMC | P2D41:00 | A/C Compressor Motor Voltage "B" Performance: No Sub Type Information | GO to Pinpoint Test AI |
| SOBDMC | P2D42:00 | A/C Compressor Motor Voltage "B" Low: No Sub Type Information | GO to Pinpoint Test AI |
| SOBDMC | P2D44:00 | A/C Compressor Motor Performance: No Sub Type Information | GO to Pinpoint Test AI |
| SOBDMC | P2DA4:00 | Coolant Heater "A" Internal Control Module Performance: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2DA5:00 | Coolant Heater "A" Supply Voltage Circuit: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2DA6:00 | Coolant Heater "A" Over Temperature: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2DA7:00 | Coolant Heater "A" Internal Control Module Control Module System Voltage: No Sub Type Information | GO to Pinpoint Test AJ |
| SOBDMC | P2E62:00 | Engine Coolant Bypass Valve "E" Control Circuit/Open: No Sub Type Information | GO to Pinpoint Test AT |
| SOBDMC | P2E63:00 | Engine Coolant Bypass Valve "E" Control Circuit Low: No Sub Type Information | GO to Pinpoint Test AT |
| SOBDMC | P2E64:00 | Engine Coolant Bypass Valve "E" Control Circuit High: No Sub Type Information | GO to Pinpoint Test AT |
| SOBDMC | U069E:81 | Lost Communication With Coolant Heater "A": Invalid Serial Data Received | GO to Pinpoint Test AJ |
| SOBDMC | U069E:87 | Lost Communication With Coolant Heater "A": Missing Messages | GO to Pinpoint Test AJ |
Symptom Charts
Symptom Chart – Climate Control Systems
NOTE: Some Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) may inhibit Air Conditioning (A/C) operation. If any Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to the 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).
| Condition | Actions |
|---|---|
| Unable to duplicate the customer concern and no Diagnostic Trouble Codes (DTCs) present | GO to Pinpoint Test I |
| A module does not respond to the diagnostic scan tool |
REFER to: Communications Network (418-00 Module Communications Network, Diagnosis and Testing). |
| Externally Controlled Variable Displacement Compressor (EVDC) poor performance/does not operate correctly | GO to Pinpoint Test C |
| Insufficient Air Conditioning (A/C) cooling | GO to Pinpoint Test AY |
| The A/C is inoperative NON HEV | GO to Pinpoint Test M |
| The A/C is always on — A/C mode always commanded on NON HEV | GO to Pinpoint Test N |
| The A/C pressure relief valve is discharging | GO to Pinpoint Test AW |
| ACCM A/C ELECTRIC COMPRESSOR INOPERATIVE | GO to Pinpoint Test AI |
| The air inlet door is inoperative | GO to Pinpoint Test J |
| The front blower motor is inoperative | GO to Pinpoint Test O |
| The front blower motor does not operate correctly | GO to Pinpoint Test P |
| The rear blower motor is inoperative | GO to Pinpoint Test AC |
| The rear blower motor does not operate correctly | GO to Pinpoint Test AD |
| Incorrect or erratic direction of airflow from outlets on front system | GO to Pinpoint Test K |
| Incorrect or erratic direction of airflow from outlets on rear system | GO to Pinpoint Test AE |
| Insufficient, erratic or no heat | GO to Pinpoint Test L |
| Reduced outlet airflow | GO to Pinpoint Test AZ |
| The temperature control is inoperative or does not operate correctly – driver side | GO to Pinpoint Test G |
| The temperature control is inoperative or does not operate correctly – passenger side | GO to Pinpoint Test H |
| The rear temperature control is inoperative or does not operate correctly | GO to Pinpoint Test AF |
| The temperature setpoint does not repeat after setting the ignition to OFF | INSTALL a new HVAC control module. REFER to the appropriate procedure in Group 412-00. |
| NVH when the A/C is on | GO to Pinpoint Test BA |
Pinpoint Tests
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PINPOINT TEST A : P0531, P0532, P0533, P0534.jpg){kind=icon}
PINPOINT TEST A : P0531, P0532, P0533, P0534|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Pressure Transducer, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
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| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||||||||||||||
| A1 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) PRESSURE SENSOR PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE SET READINGS | ||||||||||||||||||||||||||||||||||||||||
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NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range
Are the pressure values of the manifold gauge set and the PID, dependent upon the ambient temperatures, within ± 103 kPa (15 psi)?
|
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| A2 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||
Is any voltage present?
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| A3 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
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| A4 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
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| A5 CHECK THE A/C (AIR CONDITIONING) PRESSURE SENSOR CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
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| A6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
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Click here to access Guided Routine (PCM)..png)
Internet Explorer version 11 or greater is required to perform this Pinpoint Test. PINPOINT TEST B : P0645:00, P2CFC:00, P2CFD:00, P2CFE:00 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions When A/C is requested and A/C line pressures allow, the PCM grounds the clutch control circuit that is hardwired to the A/C clutch control input processing in the BCMC. For additional information on A/C Request, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
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| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| B1 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
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| B2 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR A SHORT TO GROUND | ||||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
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| B3 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR AN OPEN | ||||||||||||||||||||||
Is the resistance less than 3 ohms?
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| B4 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||
Is the concern still present?
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| B5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST C : P06A0|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The externally controlled variable displacement compressor is electronically controlled by the PCM. The PCM
pulse width modulates the ground to the externally controlled variable
displacement compressor to change the displacement of the A/C compressor. REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
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| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| C1 EXTERNALLY CONTROLLED VARIABLE DISPLACEMENT COMPRESSOR (EVDC) PERFORMANCE CHECK WITH THE AC COMPRESSOR ELECTRONIC CONTROL VALVE TESTER | ||||||||||||||||||||||
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NOTE: The following pinpoint test step uses the EVDC100 Electronic Variable Displacement A/C Compressor Control Valve Tester, available on the Ford Rotunda website. NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the suction low side pressure decrease or the high side pressure increase?
|
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| C2 CHECK FOR VOLTAGE TO THE A/C (AIR CONDITIONING) COMPRESSOR CONTROL SOLENOID | ||||||||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||
| C3 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| C4 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR A SHORT TO GROUND | ||||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||||||||
| C5 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR DISPLACEMENT CONTROL VALVE CIRCUIT FOR AN OPEN | ||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||
| C6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST D : INSUFFICIENT HEAT IN AUTO START-STOP MODE ONLY |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin Heater Coolant Pump, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | ||||||||||||||||||||||||||||||||||||||||
| D1 CHECK THE CABIN HEATER COOLANT PUMP | ||||||||||||||||||||||||||||||||||||||||
|
NOTE: The engine must be auto-stopped to request the cabin heater coolant pump on. Further information can be found in the Owner's Literature for full Auto Start-Stop enabling/disabling.
Does the cabin heater coolant pump turn on?
|
||||||||||||||||||||||||||||||||||||||||
| D2 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||||||||||||||||||||
| D3 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||
| D4 CHECK THE CABIN HEATER COOLANT PUMP CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||
| D5 CHECK THE ENGINE COOLANT LEVEL | ||||||||||||||||||||||||||||||||||||||||
|
NOTE: Allow the engine to cool before checking the engine coolant level.
Is the engine coolant level within specifications?
|
||||||||||||||||||||||||||||||||||||||||
| D6 CLEAR ALL PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES | ||||||||||||||||||||||||||||||||||||||||
Does the cabin coolant pump turn on?
|
||||||||||||||||||||||||||||||||||||||||
| D7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST E : B1A61:11, B1A61;15, B1A69:11, B1A69:15, B1A69:92 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions In-Vehicle Temperature and Humidity Sensor, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||
| E1 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||
| E2 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||
| E3 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR CIRCUITS FOR AN OPEN CIRCUIT | ||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||
| E4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST F : B1B71:11, B1B71:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Evaporator Temperature Sensor, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||
| F1 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| F2 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| F3 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | |||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||
| F4 CHECK THE EVAPORATOR TEMPERATURE SENSOR CIRCUITS FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| F5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST G : THE TEMPERATURE CONTROL IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY - DRIVER SIDE |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Temperature Door Actuator - Driver Side. REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the temperature door until the door reaches both internal stops in the HVAC case. If the temperature blend door is temporarily obstructed or binding during a calibration cycle, the HVAC control module can interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be the expected temperature. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| G1 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| G2 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| G3 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| G4 CHECK THE DRIVER SIDE TEMPERATURE DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| G5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| G6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST H : THE TEMPERATURE CONTROL IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY - PASSENGER SIDE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Temperature Door Actuator - Passenger Side, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the temperature door until the door reaches both internal stops in the HVAC case. If the temperature door is temporarily obstructed or binding during a calibration cycle, the HVAC control module can interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be the expected temperature. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||
| H1 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| H2 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| H3 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| H4 CHECK THE PASSENGER SIDE TEMPERATURE DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| H5 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||
| H6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST I : UNABLE TO DUPLICATE THE CUSTOMER CONCERN AND NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT|
Normal Operation and Fault Conditions The purpose of this pinpoint test is to test the functions of the HVAC system and identify the correct HVAC symptom pinpoint test. Possible Sources
|
||||
| NOTE: Before carrying out the following test, diagnose all Heating, Ventilation and Air Conditioning (A/C) control module and Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs). | ||||
| I1 CHECK THE BLOWER MOTOR OPERATION | ||||
Does the blower motor operate in all ranges?
|
||||
| I2 CHECK AIRFLOW OPERATION | ||||
Is the airflow directed to the correct outlets?
|
||||
| I3 VERIFY TEMPERATURE CONTROL OPERATION | ||||
Does the temperature change between very warm to cool?
|
||||
| I4 VERIFY THE A/C (AIR CONDITIONING) CLUTCH DOES NOT ENGAGE WITH THE A/C (AIR CONDITIONING) OFF | ||||
Is the outlet temperature close to ambient temperature?
|
||||
| I5 VERIFY A/C (AIR CONDITIONING) CLUTCH ENGAGEMENT IN THE A/C (AIR CONDITIONING) MODE | ||||
Does the A/C clutch engage when the panel mode is selected and the A/C button (indicator on) is pressed?
|
||||
| I6 CHECK THE RECIRCULATED AIR OPERATION | ||||
Does the airflow noise increase when the RECIRC mode is selected (indicator on)?
|
||||
| I7 CHECK THE IN-VEHICLE TEMPERATURE AND HUMIDITY SENSOR FAN OPERATION | ||||
Is the tissue drawn to the sensor opening?
|
PINPOINT TEST J : THE AIR INLET DOOR IS INOPERATIVE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Door Actuator – Air Inlet Door, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the air inlet mode door until the door reaches both internal stops in the HVAC case. If the air inlet mode door is temporarily obstructed or binding during a calibration cycle, the HVAC control module may interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the air intake may not be from the expected source. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| J1 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| J2 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| J3 CHECK THE AIR INLET MODE DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| J4 CHECK THE AIR INLET DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| J5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| J6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST K : INCORRECT OR ERRATIC DIRECTION OF AIRFLOW FROM OUTLETS ON FRONT SYSTEM |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). During an actuator calibration cycle, the HVAC control module drives the defrost vent door and the footwell vent/register door until the doors reach both internal stops in the HVAC case. If the defrost vent door or the footwell vent/register door is temporarily obstructed or binding during a calibration cycle, the HVAC control module may interpret this as the actual end of travel for the door. When this condition occurs and the HVAC control module commands the actuator to its end of travel, the airflow may not be from the expected outlets. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| K1 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| K2 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| K3 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| K4 CHECK THE AIR DISTRIBUTION DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | ||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||
| K5 CHECK FOR CORRECT ACTUATOR OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||
| K6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST L : INSUFFICIENT, ERRATIC OR NO HEAT |
Normal Operation and Fault Conditions When the engine is at operating temperature hot coolant flows from the engine through the heater core and back to the engine. Correct coolant temperatures are critical for good heater performance. Possible Sources
Visual Inspection and Pre-checks
|
||||
| L1 CHECK FOR CORRECT ENGINE COOLANT LEVEL | ||||
Is the engine coolant at the correct level (hot or cold) as indicated on the engine coolant recovery reservoir?
|
||||
| L2 CHECK THE ENGINE COOLING SYSTEM FOR LEAKS | ||||
Does the cooling system leak?
|
||||
| L3 CHECK FOR COOLANT FLOW TO THE HEATER CORE | ||||
Is the heater core inlet hose temperature above 65.5°C (150°F)?
|
||||
| L4 CHECK FOR A PLUGGED OR RESTRICTED HEATER CORE | ||||
Is the heater core outlet hose temperature similar to the inlet hose temperature, within approximately 6-17°C (10-30°F)?
|
PINPOINT TEST M : THE A/C (AIR CONDITIONING)
IS INOPERATIVE - NON HEV (HYBRID ELECTRIC VEHICLE)
|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Request, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). Possible Sources
Visual Inspection and Pre-checks |
||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||||||
| NOTE: Some Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) may inhibit Air Conditioning (A/C) operation. If any Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to the Diagnostic Trouble Code (DTC) Chart. | ||||||||||||||||||||||||||||||||
| M1 CHECK THE A/C (AIR CONDITIONING) SYSTEM PRESSURE | ||||||||||||||||||||||||||||||||
|
NOTE: Static refrigerant pressure, under perfect conditions, should approximately reflect ambient air temperature. Do not rely upon the static refrigerant pressure alone to determine if the system is properly charged. Refer to the current Ford Web Based Technical Training courses for basic HVAC system refrigerant operation.
Is the A/C system pressure above 290 kPa (42 psi)?
|
||||||||||||||||||||||||||||||||
| M2 CHECK THE COMMUNICATION NETWORK | ||||||||||||||||||||||||||||||||
Do the HVAC control module and the PCM pass the network test?
|
||||||||||||||||||||||||||||||||
| M3 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) PRESSURE SENSOR PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE VALUE | ||||||||||||||||||||||||||||||||
|
NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range.
Are the pressure values of the manifold gauge set and the PID, dependent upon ambient temperatures, within ± 103 kPa (15 psi)?
|
||||||||||||||||||||||||||||||||
| M4 COMPARE THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE EVAPORATOR TEMPERATURE PID (PARAMETER IDENTIFICATION) TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||
Are the temperature values similar [typically within 18ºC (32.4ºF)]?
|
||||||||||||||||||||||||||||||||
| M5 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) INTAKE AIR TEMPERATURE PID (PARAMETER IDENTIFICATION) AND THE OTHER TEMPERATURE SENSOR READINGS TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||
|
NOTE: Compare multiple engine sensor readings to the ambient temperature to determine sensors are reading correctly. A faulty sensor can cause the Powertrain Control Module (PCM) to disable the Air Conditioning (A/C) compressor with or without a Diagnostic Trouble Code (DTC).
Are the temperature values similar [typically within 18ºC (32.4ºF)]?
|
||||||||||||||||||||||||||||||||
| M6 RESET THE AMBIENT AIR TEMPERATURE (AAT) SENSOR | ||||||||||||||||||||||||||||||||
Does the A/C compressor turn on?
|
||||||||||||||||||||||||||||||||
| M7 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON | ||||||||||||||||||||||||||||||||
Does the PID display ON or Yes when the button is pressed?
|
||||||||||||||||||||||||||||||||
| M8 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) ON | ||||||||||||||||||||||||||||||||
Does the PID display ON or Yes when the button is pressed?
|
||||||||||||||||||||||||||||||||
| M9 COMMAND THE A/C (AIR CONDITIONING) COMPRESSOR ON | ||||||||||||||||||||||||||||||||
Does the A/C compressor turn on?
|
||||||||||||||||||||||||||||||||
| M10 CHECK THE A/C (AIR CONDITIONING) CLUTCH RELAY COIL CONTROL CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| M11 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| M12 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL GROUND CIRCUIT FOR AN OPEN | ||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||
| M13 CHECK FOR VOLTAGE TO THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL | ||||||||||||||||||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||||||||||||
| M14 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH AIR GAP | ||||||||||||||||||||||||||||||||
Is the A/C compressor clutch air gap greater than 0.6 mm (0.0236 in)?
|
||||||||||||||||||||||||||||||||
| M15 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||||||||||||||||
| M16 CHECK FOR AN INPUT DISABLING THE A/C (AIR CONDITIONING) CLUTCH RELAY | ||||||||||||||||||||||||||||||||
|
NOTE: The Powertrain Control Module (PCM) strategy may disable the Air Conditioning (A/C) compressor operation. If the A/C compressor clutch can be commanded on using a diagnostic scan tool Powertrain Control Module (PCM) Parameter Identifications (PIDs) Active Commands, Powertrain Control Module (PCM) replacement will not resolve the condition.
Are any of the conditions described above not within normal parameters?
|
PINPOINT TEST N : THE A/C (AIR CONDITIONING)
IS ALWAYS ON — A/C (AIR CONDITIONING)
MODE ALWAYS COMMANDED ON - NON HEV (HYBRID ELECTRIC VEHICLE)
|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
A/C Request, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||
| N1 RECHECK THE PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||
Does DTC P1464 return?
|
||||||||||
| N2 CHECK THE A/C (AIR CONDITIONING) COMPRESSOR CLUTCH FIELD COIL VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||
Is any voltage present?
|
||||||||||
| N3 COMPARE THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE EVAPORATOR TEMPERATURE PID (PARAMETER IDENTIFICATION) TO THE PCM (POWERTRAIN CONTROL MODULE) AMBIENT AIR TEMPERATURE PID (PARAMETER IDENTIFICATION) | ||||||||||
Are the temperature values similar [typically within 18ºC (32.4ºF)]?
|
||||||||||
| N4 COMPARE THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) PRESSURE SENSOR PID (PARAMETER IDENTIFICATION) WITH THE MANIFOLD GAUGE VALUE | ||||||||||
|
NOTE: The following pinpoint test step is tested in ambient temperature of approximately 21.1°C (70°F). As ambient temperatures near 38°C (100.4°F), the pressure value difference increases above ± 15 psi (103 kPa) range.
Are the pressure values of the manifold gauge set and the PID, dependent upon ambient temperatures, within ± 103 kPa (15 psi)?
|
||||||||||
| N5 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH STATUS PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) OFF | ||||||||||
Does the PID display On when the A/C button is pressed and Off when released?
|
||||||||||
| N6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL PID (PARAMETER IDENTIFICATION) WITH THE A/C (AIR CONDITIONING) OFF | ||||||||||
Does the PID display OFF?
|
||||||||||
| N7 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL PID (PARAMETER IDENTIFICATION) WITH THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DISCONNECTED | ||||||||||
Does the PID display OFF?
|
||||||||||
| N8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||
Is the concern still present?
|
||||||||||
| N9 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||
Is the concern still present?
|
PINPOINT TEST O : THE FRONT BLOWER MOTOR IS INOPERATIVE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||
| O1 CHECK THE BLOWER MOTOR RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND | ||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||||
| O2 CHECK THE BLOWER MOTOR RELAY COIL CONTROL CIRCUIT FOR AN OPEN | ||||||||||||||||||
|
NOTE: Some vehicles may be equipped with a diode in the blower motor relay coil ground circuit. Make sure the multimeter leads are correctly attached during testing or a false reading will occur causing misdiagnosis of the circuit. For additional information, refer to the Wiring Diagrams manual.
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| O3 CHECK THE BLOWER MOTOR CONTROL MODULE VOLTAGE CIRCUIT FOR AN OPEN | ||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| O4 CHECK FOR VOLTAGE TO THE BLOWER MOTOR CONTROL MODULE | ||||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||||
| O5 CHECK THE BLOWER MOTOR CONTROL MODULE GROUND CIRCUIT FOR AN OPEN | ||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| O6 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||
| O7 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR AN OPEN | ||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||
| O8 CHECK FOR CORRECT BLOWER MOTOR CONTROL MODULE OPERATION | ||||||||||||||||||
Is the concern still present?
|
||||||||||||||||||
| O9 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST P : THE FRONT BLOWER MOTOR DOES NOT OPERATE CORRECTLY|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air Handling. REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||
| P1 VERIFY THE BLOWER MOTOR OPERATION | ||||||||||||
Does the blower motor operate at any setting?
|
||||||||||||
| P2 CHECK THE BLOWER MOTOR CONTROL MODULE PWM (PULSE WIDTH MODULATION) CIRCUIT FOR A SHORT TO GROUND | ||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||
| P3 CHECK THE BLOWER MOTOR RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||
Is any voltage present?
|
||||||||||||
| P4 CHECK THE BLOWER MOTOR CONTROL MODULE VOLTAGE CIRCUIT FOR A SHORT TO VOLTAGE | ||||||||||||
Is any voltage present?
|
||||||||||||
| P5 CHECK FOR CORRECT BLOWER MOTOR CONTROL MODULE OPERATION | ||||||||||||
Is the concern still present?
|
||||||||||||
| P6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||
Is the concern still present?
|
PINPOINT TEST Q : U0140:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The ACCM, HVAC control module and the RHVAC control module communicate with the BCM over the CAN. If messages are missing or not received from the BCM, the climate control system may not operate not operate correctly. Inspect for loose or corroded BCM and HVAC control module connections. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||
| Q1 VERIFY THE CONCERN | ||||||||||||
Is an observable symptom present?
|
||||||||||||
| Q2 CHECK THE NETWORK COMMUNICATION | ||||||||||||
Does the BCM pass the network test?
|
||||||||||||
| Q3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||
| Q4 CHECK FOR NON-NETWORK BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||
| Q5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00 | ||||||||||||
Is DTC U0140:00 still present?
|
||||||||||||
| Q6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | ||||||||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is the observable symptom still present?
|
||||||||||||
| Q7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION | ||||||||||||
Is the concern still present?
|
PINPOINT TEST R : U0151:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| R1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| R2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the RCM pass the network test?
|
||||||
| R3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RCM (RESTRAINTS CONTROL MODULE) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| R4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| R5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0151:00 still present?
|
||||||
| R6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0151:00 SET IN OTHER MODULES | ||||||
Is DTC U0151:00 set in other modules on the network?
|
||||||
| R7 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| R8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST S : U0155:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions With the ignition ON, the IPC sends messages to the HVAC control module over the MS-CAN. If the HVAC control module does not receive these messages within the specified time frame, the module sets a DTC. This can be due to an IPC failure, a circuit failure on the MS-CAN or an excessive load on the network. For information on the messages sent to the HVAC control module by the IPC, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| S1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| S2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the IPC pass the network test?
|
||||||
| S3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| S4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| S5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0155:00 still present?
|
||||||
| S6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0155:00 SET IN OTHER MODULES | ||||||
Is DTC U0155:00 set in other modules on the network?
|
||||||
| S7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION | ||||||
Is the concern still present?
|
||||||
| S8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST T : U0164:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Rear Climate Control - System Operation and Component Description (412-02 Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| T1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| T2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the HVAC control module pass the network test?
|
||||||
| T3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| T4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (RHVAC) REAR HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| T5 RECHECK THE (RHVAC) REAR HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0164:00 still present?
|
||||||
| T6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0164:00 SET IN OTHER MODULES | ||||||
Is DTC U0164:00 set in other modules on the network?
|
||||||
| T7 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| T8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST U : U0165:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions
REFER to: Rear Climate Control - System Operation and Component Description (412-02 Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| U1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| U2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the RHVAC control module pass the network test?
|
||||||
| U3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| U4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| U5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0165:00 still present?
|
||||||
| U6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0165:00 SET IN OTHER MODULES | ||||||
Is DTC U0165:00 set in other modules on the network?
|
||||||
| U7 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| U8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST V : U0253:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| V1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| V2 CHECK THE COMMUNICATION NETWORK | ||||||
Does the APIM pass the network test?
|
||||||
| V3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE APIM (SYNC MODULE) SELF-TEST | ||||||
Are any Diagnostic Trouble Codes (DTCs) recorded?
|
||||||
| V4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE SELF-TEST | ||||||
Is DTC U3003:16 or DTC U3003:17 recorded?
|
||||||
| V5 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is DTC U0253:00 still present?
|
||||||
| V6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00 SET IN OTHER MODULES | ||||||
Is DTC U0253:00 set in other modules on the network?
|
||||||
| V7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| V8 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST W : U1000:00|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Control Logic, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||
| W1 RECHECK THE (HVAC) HEATING, VENTILATION AND AIR CONDITIONING CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.
Is U1000:00 present?
|
PINPOINT TEST X : B102E:11, B102E:15, B102E:92|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Ambient air quality sensor, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||
| X1 CHECK THE AMBIENT AIR QUALITY SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||
| X2 CHECK THE AMBIENT AIR QUALITY SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| X3 CHECK THE AMBIENT AIR QUALITY SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||
| X4 CHECK THE AMBIENT AIR QUALITY SENSOR CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||
| X5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST Y : B1A63:11, B1A63:15, B1A64:11, B1A64:15|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The sunload sensor supplies information to the HVAC control module indicating the sunload intensity on the vehicle and the HVAC control module adjusts the system based on that information. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||
| Y1 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| Y2 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| Y3 CHECK THE SUNLOAD SENSOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| Y4 CHECK THE SUNLOAD SENSOR CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| Y5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST Z : B10B3:11, B10B3:15, B10B4:11, B10B4:15, B10B5:11, B10B5:15, B10B6:11, B10B6:15 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The air discharge sensors supply a varying voltage to the HVAC control module based on the temperature of the air being discharged from the vent. The HVAC control module adjusts the system based on the voltage from each sensor. Each air discharge sensor is supplied voltage from the HVAC control module and all sensors share a common sensor ground. An open, a short to ground, a short to voltage on one or more of these circuits or a failed air discharge sensor causes the HVAC control module to set one or more Diagnostic Trouble Codes (DTCs). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||||||||||||||||||||||||||||||||
| Z1 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR OUTPUT VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||||||
Are the voltages between 4.7 and 5.1 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||
| Z2 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||||||
Is any voltage present?
|
||||||||||||||||||||||||||||||||||||||||||||||
| Z3 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| Z4 CHECK THE AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| Z5 CHECK AIR DISCHARGE TEMPERATURE SENSOR CIRCUITS FOR A SHORT TO TOGETHER | ||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||
| Z6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AA : P193E|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The PCM controls the A/C compressor clutch field coil based on messages received from the BCM over the HS-CAN. When the HVAC control module determines it is necessary to activate the A/C compressor, either due to driver request or due to automatic climate control settings, the HVAC control module sends a message to the BCM over the MS-CAN, the BCM then sends a message to the PCM to activate the A/C compressor. An internal failure of the PCM, BCM or HVAC control module; or a failure in the MS-CAN or HS-CAN causes the PCM to set a DTC. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AA1 VERIFY THE CUSTOMER CONCERN | ||||||
Is an observable symptom present?
|
||||||
| AA2 CHECK THE COMMUNICATION NETWORK | ||||||
Do the BCM, PCM and the HVAC control module pass the network test?
|
||||||
| AA3 CHECK THE PCM (POWERTRAIN CONTROL MODULE) A/C (AIR CONDITIONING) REQUEST SIGNAL PID (PARAMETER IDENTIFICATION) | ||||||
Does the PID display YES when the A/C button indicator is illuminated?
|
||||||
| AA4 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE A/C (AIR CONDITIONING) SWITCH PID (PARAMETER IDENTIFICATION) | ||||||
Does the PID display ON when the A/C button indicator is illuminated?
|
||||||
| AA5 VERIFY CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||
Is the concern still present?
|
||||||
| AA6 VERIFY CORRECT BCM (BODY CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
||||||
| AA7 VERIFY CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AB : C1B14:11, C1B14:12|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Reference voltage is supplied to the climate control actuators and one sensor from the HVAC control module on one common circuit and the signal returns to the HVAC control module on one common circuit. All components that share these two circuits are listed in this pinpoint test. Access to these components are difficult. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||
| AB1 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||||||
Is DTC C1B14:11 or C1B14:12 present?
|
|||||||||||||
| AB2 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| AB3 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE REFERENCE VOLTAGE AND SIGNAL RETURN CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||
| AB4 CHECK THE REFERENCE VOLTAGE CIRCUIT AND THE SIGNAL RETURN CIRCUIT FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 200 ohms?
|
|||||||||||||
| AB5 CHECK THE A/C (AIR CONDITIONING) COMPONENTS | |||||||||||||
Did the resistance rise above 200 ohms?
|
|||||||||||||
| AB6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST AC : THE REAR BLOWER MOTOR IS INOPERATIVE |
Refer to Wiring Diagrams Cell 52 for schematic and connector information. Normal Operation and Fault Conditions Rear blower motor. REFER to: Rear Climate Control - System Operation and Component Description (412-02 Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||
| AC1 CHECK THE REAR BLOWER MOTOR OPERATION | ||||||||||||||||
Does the rear blower motor operate in any position?
|
||||||||||||||||
| AC2 CHECK THE REAR BLOWER MOTOR SPEED CONTROL GROUND CIRCUIT | ||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||
| AC3 CHECK THE REAR BLOWER MOTOR SPEED CONTROL AND REAR BLOWER MOTOR SUPPLY VOLTAGE CIRCUITS FOR AN OPEN | ||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||
| AC4 CHECK THE REAR BLOWER MOTOR SPEED CONTROL FOR SUPPLY VOLTAGE | ||||||||||||||||
Is the voltage greater than 11 volts?
|
||||||||||||||||
| AC5 CHECK THE PWM (PULSE WIDTH MODULATION) CIRCUIT BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE AND THE REAR BLOWER MOTOR SPEED CONTROL FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
|
||||||||||||||||
| AC6 CHECK THE PWM (PULSE WIDTH MODULATION) CIRCUIT BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE AND THE REAR BLOWER MOTOR SPEED CONTROL FOR A SHORT TO GROUND | ||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||
| AC7 CHECK THE PWM (PULSE WIDTH MODULATION) CIRCUIT BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE AND THE REAR BLOWER MOTOR SPEED CONTROL FOR AN OPEN | ||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||
| AC8 CHECK FOR REAR BLOWER MOTOR FUNCTIONALITY WITH A TEST LIGHT IN PLACE OF THE REAR BLOWER MOTOR | ||||||||||||||||
|
NOTICE: The following pinpoint test step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or equivalent 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.
Does the test lamp illuminate?
|
||||||||||||||||
| AC9 CHECK THE REAR BLOWER MOTOR CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
|
||||||||||||||||
| AC10 CHECK THE REAR BLOWER MOTOR CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||
| AC11 CHECK THE REAR BLOWER MOTOR GROUND CIRCUIT FOR AN OPEN | ||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||
| AC12 CHECK FOR CORRECT REAR BLOWER MOTOR SPEED CONTROL OPERATION | ||||||||||||||||
Is the concern still present?
|
||||||||||||||||
| AC13 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||
Is the concern still present?
|
.jpg)
PINPOINT TEST AD : THE REAR BLOWER MOTOR DOES NOT OPERATE CORRECTLY |
Refer to Wiring Diagrams Cell 52 for schematic and connector information. Normal Operation and Fault Conditions Rear blower motor. REFER to: Rear Climate Control - System Operation and Component Description (412-02 Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | ||||||||||||||||
| AD1 CHECK THE REAR BLOWER MOTOR OPERATION | ||||||||||||||||
Does the rear blower motor operate in any position?
|
||||||||||||||||
| AD2 CHECK THE REAR BLOWER MOTOR SPEED CONTROL CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
|
||||||||||||||||
| AD3 CHECK THE REAR BLOWER MOTOR SPEED CONTROL CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||
| AD4 CHECK FOR CORRECT REAR BLOWER MOTOR SPEED CONTROL OPERATION | ||||||||||||||||
Is the concern still present?
|
||||||||||||||||
| AD5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||
Is the concern still present?
|
PINPOINT
TEST AE : INCORRECT OR ERRATIC DIRECTION OF AIRFLOW FROM OUTLETS ON
RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING)
SYSTEM |
Refer to Wiring Diagrams Cell 52 for schematic and connector information. Normal Operation and Fault Conditions Air handling, REFER to: Rear Climate Control - System Operation and Component Description (412-02 Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||
| AE1 CHECK THE REAR AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| AE2 CHECK THE REAR AIR DISTRIBUTION DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| AE3 CHECK THE REAR AIR DISTRIBUTION MODE DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| AE4 CHECK THE REAR AIR DISTRIBUTION MODE DOOR ACTUATOR POWER CIRCUITS FOR VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| AE5 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||
| AE6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AF : REAR TEMPERATURE DOOR IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Air handling, REFER to: Rear Climate Control - System Operation and Component Description (412-02 Rear Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector. | |||||||||||||||||||||||||
| AF1 CHECK THE REAR TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| AF2 CHECK THE REAR TEMPERATURE DOOR ACTUATOR CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||||||||||||||
| AF3 CHECK THE REAR TEMPERATURE DOOR ACTUATOR CIRCUITS FOR AN OPEN | |||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||||||
| AF4 CHECK THE REAR TEMPERATURE DOOR ACTUATOR POWER CIRCUIT FOR VOLTAGE | |||||||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||||||
| AF5 CHECK FOR CORRECT ACTUATOR OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
|||||||||||||||||||||||||
| AF6 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AG : THE AUTO START-STOP DEACTIVATION INDICATOR IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The instrument panel console switch assembly - auto start-stop deactivation switch, REFER to: Climate Control System - System Operation and Component Description (412-00 Climate Control System - General Information, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||
| AG1 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| AG2 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Are the resistances greater than 10,000 ohms?
|
|||||||||||||
| AG3 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR AN OPEN | |||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||
| AG4 CHECK THE AUTO START-STOP DEACTIVATION SWITCH INDICATOR AND LED (LIGHT EMITTING DIODE) CIRCUITS FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| AG5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST AH : B10B8:63 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Climate control system buttons held too long may set this DTC. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||
| AH1 CLEAN HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE BUTTONS | |||||||||
Is the concern still present?
|
|||||||||
| AH2 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||
Is the concern still present?
|
|||||||||
| AH3 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||
Is the concern still present?
|
PINPOINT TEST AI :
ACCM (AIR CONDITIONING CONTROL MODULE)
A/C (AIR CONDITIONING)
ELECTRIC COMPRESSOR INOPERATIVE|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The ACCM is an integral part of the A/C electric compressor and cannot be removed from or serviced separately. The ACCM has both low voltage and high voltage electrical connections. The ACCM requires a low voltage system operating voltage between 9 and 16 volts. The ACCM also requires high voltage system operating voltage between 100 and 467 volts. The ACCM has a single ground circuit located in the engine compartment wiring harness. Excessive resistance or an open in one or more of these circuits, a discharged battery or an inoperative charging system results in the ACCM setting a DTC. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI1 PERFORM THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) SELF-TEST | ||||||||||||||||||||||||||||||||||||||||||||||||
Are any DCDC Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI2 PERFORM THE BECM (BATTERY ENERGY CONTROL MODULE) SELF-TEST | ||||||||||||||||||||||||||||||||||||||||||||||||
Are any BECM Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI3 RECHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to the appropriate workshop manual section 414-03. NOTE: Before testing of the Air Conditioning (A/C) electric compressor Air Conditioning Control Module (ACCM) with a diagnostic scan tool can be performed on a Highbrid Electric Vehicle (HEV), the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Does DTC P0562:00, P0563:00, P0AFA:16, P0AFB:17, P0AFB:1C, B11EE:19, B11EE:4B or B11EE:92 return?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI4 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) MAIN ECU VOLTAGE SUPPLY MAINECUV PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the voltage PID between 9 volts and 16 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI5 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) LOW VOLTAGE SUPPLY CIRCUIT | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
Is the voltage greater than 11 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI6 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) GROUND CIRCUIT | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI7 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) ELECTRIC A/C COMPRESSOR HIGH VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||||||||||||||||||||||||||
Is the voltage supply PID between 100 volts and 467 volts?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI8 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) ELECTRIC A/C COMPRESSOR HIGH VOLTAGE CABLES FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI9 CHECK THE HIGH VOLTAGE LOW CURRENT FUSE | ||||||||||||||||||||||||||||||||||||||||||||||||
|
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||||||||
| AI10 CHECK FOR CORRECT ACCM (AIR CONDITIONING CONTROL MODULE) OPERATION | ||||||||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Before testing of the Air Conditioning (A/C) electric compressor Air Conditioning Control Module (ACCM) with a diagnostic scan tool can be performed on a Highbrid Electric Vehicle (HEV), the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Is the concern still present?
|
.jpg)
.jpg)
PINPOINT TEST AJ : CHECK THE CABIN COOLANT HEATER OPERATION P01EB:96, P2DA4:00, P2DA5:00, P2DA6:00, P2DA7:00, U069E:81, U069E:87|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin coolant heater , REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
Visual Inspection and Pre-checks
|
||||||||||||||||||||||||
.jpg)
WARNING:
To prevent the risk of high-voltage shock, always follow
precisely all warnings and service instructions, including instructions
to depower the system. The high-voltage system utilizes approximately
300 volts DC, provided through high-voltage cables to its components and
modules. The high-voltage cables and wiring are identified by orange
harness tape or orange wire covering. All high-voltage components are
marked with high-voltage warning labels with a high-voltage symbol.
Failure to follow these instructions may result in serious personal
injury or death.
|
||||||||||||||||||||||||
| NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to section 414-03. | ||||||||||||||||||||||||
| AJ1 CHECK THE CABIN COOLANT HEATER USING THE PARAMETER IDENTIFICATION (PID) | ||||||||||||||||||||||||
|
NOTICE: Running of the cabin coolant heater without running the cabin heater coolant pump may cause damage to the cabin coolant heater. NOTE: Before an active command of the Cabin Heater Coolant Pump, the Cabin Coolant Heater or the Cabin Heater Coolant Diverter Valve can be performed, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Do the heater core hoses increase in temperature?
|
||||||||||||||||||||||||
| AJ2 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) HIGH VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) | ||||||||||||||||||||||||
|
NOTE: The Cabin Coolant Heater and the Air Conditioning Control Module share the same High Voltage source. Monitor the ACCM HV PID.
Is the voltage supply PID between 100 volts and 467 volts?
|
||||||||||||||||||||||||
| AJ3 CHECK FOR PARTIALLY MATED HIGH VOLTAGE CONNECTORS | ||||||||||||||||||||||||
Are any of the connectors not fully seated?
|
||||||||||||||||||||||||
| AJ4 CHECK THE CABIN COOLANT HEATER HIGH VOLTAGE CABLES FOR AN OPEN | ||||||||||||||||||||||||
|
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||
| AJ5 CHECK THE CABIN COOLANT HEATER HIGH VOLTAGE LOW CURRENT FUSE | ||||||||||||||||||||||||
|
Is the resistance less than 3 ohms?
|
||||||||||||||||||||||||
| AJ6 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||||
| AJ7 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||
| AJ8 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||
| AJ9 CHECK THE CABIN COOLANT HEATER LOW VOLTAGE CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||
| AJ10 CHECK THE COOLANT HOSE ROUTING | ||||||||||||||||||||||||
|
NOTE: Routing of the coolant hoses is critical to proper Cabin Coolant Heater System operation.
Are the coolant hoses routed correctly?
|
||||||||||||||||||||||||
| AJ11 CHECK THE ENGINE COOLANT LEVEL | ||||||||||||||||||||||||
|
NOTE: Allow the engine to cool before checking the engine coolant level.
Is the engine coolant level within specifications?
|
||||||||||||||||||||||||
| AJ12 CLEAR ALL SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) DIAGNOSTIC TROUBLE CODES | ||||||||||||||||||||||||
|
NOTE: Before an active command of the Cabin Heater Coolant Pump, the Cabin Coolant Heater or the Cabin Heater Coolant Diverter Valve can be performed, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.
Do the heater core hoses increase in temperature?
|
PINPOINT TEST AK : U0100:00|
Normal Operation and Fault Conditions The ACCM and the HVAC control module communicates with the PCM over the CAN. If messages are missing or not received from the PCM, features such as the A/C can be inoperative or can operate incorrectly, or the outside air temperature can be reporting incorrectly. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| AK1 VERIFY THE CONCERN | |||||||||
Is an observable symptom present?
|
|||||||||
| AK2 VERIFY THE DIAGNOSTIC SCAN TOOL COMMUNICATES WITH THE PCM (POWERTRAIN CONTROL MODULE) | |||||||||
Can a vehicle session be established?
|
|||||||||
| AK3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
|||||||||
| AK4 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | |||||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
|||||||||
| AK5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00 | |||||||||
Is DTC U0100:00 still present?
|
|||||||||
| AK6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | |||||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or Programmable Module Installation (PMI) the may not have been carried out.
Is the observable symptom still present?
|
|||||||||
| AK7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | |||||||||
Is the concern still present?
|
PINPOINT TEST AL : U0111:00|
Normal Operation and Fault Conditions The ACCM communicates with the BECM over the CAN. If messages are missing or not received from the BECM, the A/C can be inoperative. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AL1 VERIFY THE CONCERN | ||||||
Is an observable symptom present?
|
||||||
| AL2 CHECK THE NETWORK COMMUNICATION | ||||||
Does the BECM pass the network test?
|
||||||
| AL3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AL4 CHECK FOR BECM (BATTERY ENERGY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||
Are any non-network Diagnostic Trouble Codes (DTCs) present?
|
||||||
| AL5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0111:00 | ||||||
Is DTC U0111:00 still present?
|
||||||
| AL6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN | ||||||
|
NOTE: If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or Programmable Module Installation (PMI) the may not have been carried out.
Is the observable symptom still present?
|
||||||
| AL7 CHECK FOR CORRECT BECM (BATTERY ENERGY CONTROL MODULE) OPERATION | ||||||
Is the concern still present?
|
PINPOINT TEST AM : U3003:16 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions The modules monitor the supplied voltage and set a DTC if it falls below a threshold. DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||
| AM1 RECHECK FOR LOW VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||
Is DTC U3003:16 still present?
|
||||||||||||||||
| AM2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) | ||||||||||||||||
Are any voltage-related Diagnostic Trouble Codes (DTCs) present?
|
||||||||||||||||
| AM3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE | ||||||||||||||||
Is the battery OK and fully charged?
|
||||||||||||||||
| AM4 COMPARE THE SUSPECT MODULE VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE | ||||||||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||||||||
| AM5 CHECK THE MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE | ||||||||||||||||
|
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||||||||
| AM6 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR HIGH RESISTANCE | ||||||||||||||||
Is the voltage reading within 0.2 volt of the recorded battery voltage?
|
||||||||||||||||
| AM7 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||
Is the concern still present?
|
||||||||||||||||
| AM8 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | ||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AN : U3003:17|
Normal Operation and Fault Conditions The modules monitor the supplied voltage and set a DTC if it rises above a threshold. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| NOTE: Diagnostic Trouble Code (DTC) U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events. | |||||||||
| AN1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES | |||||||||
Are any charging or over-voltage related voltage Diagnostic Trouble Codes (DTCs) present in multiple modules?
|
|||||||||
| AN2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING | |||||||||
Does the battery voltage rise to 15.5 volts or higher?
|
|||||||||
| AN3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE) | |||||||||
Is DTC U3003:17 still present?
|
|||||||||
| AN4 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||
Is the concern still present?
|
|||||||||
| AN5 CHECK FOR CORRECT RHVAC (REAR HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION | |||||||||
Is the concern still present?
|
PINPOINT TEST AO : BUS OFF|
Refer to Wiring Diagrams Cell 55 for schematic and connector information. DTC Fault Trigger Conditions
Possible Sources
|
||||||
| AO1 DIAGNOSE THE INTERMITTENT FAULT | ||||||
|
NOTE: The module was unable to communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this Diagnostic Trouble Code (DTC).
Is the DTC still present?
|
PINPOINT TEST AP : INVALID DATA RECEIVED|
DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||
| AP1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA | |||||||||||||||||||||
Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?
|
PINPOINT TEST AQ : MODULE CONFIGURATION FAULT|
DTC Fault Trigger Conditions
Possible Sources
|
|||||||||
| AQ1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE | |||||||||
Is the original DTC still present?
|
PINPOINT TEST AR : INTERNAL MODULE FAILURE|
DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||||||||
| AR1 INSTALL A NEW SUSPECT MODULE | |||||||||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AS : P2611:00, P2612:00, P2613:00 BATTERY CHILLER SHUT OFF VALVE |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Battery chiller shut off valve REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). To validate repairs have been completed, using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs) and carry out a self-test of the SOBDMC. The SOBDMC self-test requests the climate control valve to actuate. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||||||||||
| AS1 CHECK THE BATTERY CHILLER SHUT OFF VALVE CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||
| AS2 CHECK THE BATTERY CHILLER SHUT OFF VALVE CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AS3 CHECK THE BATTERY CHILLER SHUT OFF VALVE CIRCUITS FOR AN OPEN | |||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||
| AS4 CHECK THE BATTERY CHILLER SHUT OFF VALVE CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AS5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AT : P2E62:00, P2E63:00, P2E64:00 REAR HEATER CORE SHUT OFF VALVE |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Rear heater core shutoff valve REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). To validate repairs have been completed, using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs) and carry out a self-test of the SOBDMC. The SOBDMC self-test requests the climate control valve to actuate. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||||||||||
| AT1 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||||||||||
Is any voltage present?
|
|||||||||||||||||||||
| AT2 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR A SHORT TO GROUND | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AT3 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR AN OPEN | |||||||||||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||||||||||
| AT4 CHECK THE REAR HEATER CORE SHUT OFF VALVE CIRCUITS FOR A SHORT TOGETHER | |||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||||||||||
| AT5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AU : B3A01:00, B3A02:00, B3A03:00 REAR EVAPORATOR SHUTOFF VALVE |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Rear evaporator shutoff valve REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). To validate repairs have been completed, using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs) and carry out a self-test of the SOBDMC. The SOBDMC self-test requests the climate control valve to actuate. DTC Fault Trigger Conditions
Possible Sources
|
|||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | |||||||||||||
| AU1 CHECK THE REAR EVAPORATOR SHUTOFF VALVE CIRCUITS FOR A SHORT TO VOLTAGE | |||||||||||||
Is any voltage present?
|
|||||||||||||
| AU2 CHECK THE REAR EVAPORATOR SHUTOFF VALVE CIRCUITS FOR A SHORT TO GROUND | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| AU3 CHECK THE REAR EVAPORATOR SHUTOFF VALVE CIRCUITS FOR AN OPEN | |||||||||||||
Are the resistances less than 3 ohms?
|
|||||||||||||
| AU4 CHECK THE REAR EVAPORATOR SHUTOFF VALVE CIRCUITS FOR A SHORT TOGETHER | |||||||||||||
Is the resistance greater than 10,000 ohms?
|
|||||||||||||
| AU5 CHECK FOR CORRECT BCMC (BODY CONTROL MODULE C) OPERATION | |||||||||||||
Is the concern still present?
|
PINPOINT TEST AV : P2183, P2184, P2185, P2186 |
Refer to Wiring Diagrams Cell 55 for schematic and connector information. Normal Operation and Fault Conditions Cabin heater coolant temperature sensor (also known as ECT sensor 2), REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||||||||||||||||||||||||||||
|
WARNING:
To prevent the risk of high-voltage shock, always follow
precisely all warnings and service instructions, including instructions
to depower the system. The high-voltage system utilizes approximately
300 volts DC, provided through high-voltage cables to its components and
modules. The high-voltage cables and wiring are identified by orange
harness tape or orange wire covering. All high-voltage components are
marked with high-voltage warning labels with a high-voltage symbol.
Failure to follow these instructions may result in serious personal
injury or death.
|
||||||||||||||||||||||||||||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | ||||||||||||||||||||||||||||||||||||||||||
| NOTE: Before performing this pinpoint test, ensure the high voltage battery is at least 50 % charged. For charging information, refer to section 414-03. | ||||||||||||||||||||||||||||||||||||||||||
| AV1 CHECK THE COOLANT HOSE ROUTING | ||||||||||||||||||||||||||||||||||||||||||
|
NOTE: Routing of the coolant hoses is critical to proper Cabin Coolant Heater System operation.
Are the coolant hoses routed correctly?
|
||||||||||||||||||||||||||||||||||||||||||
| AV2 CHECK THE ECT (ENGINE COOLANT TEMPERATURE) SENSOR 2 CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||||||||||||||||||||||||||||
Is there any voltage present?
|
||||||||||||||||||||||||||||||||||||||||||
| AV3 CHECK THE ECT (ENGINE COOLANT TEMPERATURE) SENSOR 2 CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||||||||||||||||||||||||||||
Are the resistances greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||
| AV4 CHECK THE ECT (ENGINE COOLANT TEMPERATURE) SENSOR 2 CIRCUITS FOR AN OPEN | ||||||||||||||||||||||||||||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||||||||||||||||||||||||||||
| AV5 CHECK THE ECT (ENGINE COOLANT TEMPERATURE) SENSOR 2 CIRCUITS FOR A SHORT TOGETHER | ||||||||||||||||||||||||||||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||||||||||||||||||||||||||||
| AV6 CHECK THE ECT (ENGINE COOLANT TEMPERATURE) SENSOR 2 RESISTANCE | ||||||||||||||||||||||||||||||||||||||||||
Is the resistance within the specified values for the temperatures?
|
||||||||||||||||||||||||||||||||||||||||||
| AV7 CHECK FOR CORRECT POWERTRAIN CONTROL MODULE (PCM) OPERATION | ||||||||||||||||||||||||||||||||||||||||||
Is the concern still present?
|
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C1064 pin 1, component side
PINPOINT TEST AW : THE A/C (AIR CONDITIONING)
COMPRESSOR RELIEF VALVE DISCHARGING|
Normal Operation and Fault Conditions The A/C pressure relief valve normal open pressure is 3,447-4,137 kPa (500-600 psi). Possible Sources
|
||||
| AW1 DIAGNOSE THE A/C (AIR CONDITIONING) COMPRESSOR RELIEF VALVE | ||||
Is the high side system pressure above the A/C pressure relief valve open pressure [3,447-4,137 kPa (500-600 psi)]?
|
PINPOINT TEST AX : P26BE, P26BF CABIN HEATER COOLANT DIVERTER VALVE|
Refer to Wiring Diagrams Cell 23 for schematic and connector information. Normal Operation and Fault Conditions Cabin heater coolant diverter valve REFER to: Supplemental Climate Control - System Operation and Component Description (412-03 Supplemental Climate Control, Description and Operation). DTC Fault Trigger Conditions
Possible Sources
|
||||||||||||||||
| NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector. | ||||||||||||||||
| AX1 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CIRCUITS FOR A SHORT TO VOLTAGE | ||||||||||||||||
Is any voltage present?
|
||||||||||||||||
| AX2 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CIRCUITS FOR A SHORT TO GROUND | ||||||||||||||||
Is the resistance greater than 10,000 ohms?
|
||||||||||||||||
| AX3 CHECK THE CABIN HEATER COOLANT DIVERTER VALVE CIRCUITS FOR AN OPEN | ||||||||||||||||
Are the resistances less than 3 ohms?
|
||||||||||||||||
| AX4 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION | ||||||||||||||||
Is the concern still present?
|
PINPOINT TEST AY : INSUFFICIENT AIR CONDITIONING (A/C) COOLING|
Possible Sources
|
||||
| AY1 CHECK THE AIR CONDITIONING (A/C) SYSTEM FOR PROPER CHARGE | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the system pass the refrigerant system tests?
|
PINPOINT TEST AZ : REDUCED OUTLET AIRFLOW |
Possible Sources
|
||||
| NOTE: Before carrying out the following test, diagnose all Heating, Ventilation And Air Conditioning (HVAC) control module and Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs). | ||||
| AZ1 CHECK THE CABIN AIR FILTER | ||||
Is the cabin air filter plugged?
|
||||
| AZ2 CHECK THE BLOWER MOTOR OPERATION | ||||
Does the blower motor operate properly?
|
||||
| AZ3 CHECK THE AIR CONDITIONING (A/C) SYSTEM FOR PROPER CHARGE | ||||
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F).
Did the system pass the refrigerant system tests?
|
PINPOINT TEST BA :
A/C (AIR CONDITIONING)
SYSTEM NVH (NOISE, VIBRATION AND HARSHNESS)
|
NOTE: Proper Air Conditioning (A/C) system diagnosis on a vehicle's compressor is dependent on correct refrigerant system charge and tested in ambient temperatures above 21.1°C (70°F). Normal Operation and Fault Conditions INSPECT the A/C system for a leak. REFER to the appropriate General Procedures in Group 412-00. Some sounds are normal when the A/C system is operating. When the refrigerant charge is found to be correct, compare to a like vehicle. Possible Sources
|
| Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation). |
Description and Operation - Climate Control System - System Operation and Component Description
System Operation
System Diagram
Item
Description
1
Hybrid
2
FDIM
3
Microphone
4
APIM
5
GWM
6
A/C clutch relay
7
Sunload sensor
8
FC..
General Procedures - Air Conditioning (A/C) Clutch Air Gap Adjustment - Vehicles With: R134A Refrigerant/R1234YF Refrigerant
Activation
NOTE:
Compressor with a spring rubber clutch shown others similar.
Check the A/C clutch air gap at 3 equally spaced places between the clutch plate and the A/C clutch pulley...
Other information:
Ford Explorer 2020-2024 Service Manual: Diagnosis and Testing - F Clutch
Symptom Chart F Clutch For F clutch operation, REFER to: F Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation). F Clutch Condition Possible Sources Action F clutch does not apply SSF is mechanically stuck OFF INSTALL a new solenoid...
Ford Explorer 2020-2024 Service Manual: Removal and Installation - Engine Front Cover
Special Tool(s) / General Equipment 303-096 (T74P-6150-A) Installer, Camshaft Front Oil SealTKIT-2009TC-F 303-1521Alignment Tool, Crankshaft Position SensorTKIT-2010C-FLM 303-1685Alignment Tool, Camshaft 303-1689Holding Tool, Crank Damper 303-409 (T92C-6700-CH) Remover, Crankshaft SealTKIT-1992-FH/FMH/FLMHTKIT-1993-LMH/MH 303-507Timing Peg, Crankshaft ..
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Gauges
4 Inch Display
A - Tachometer.
B - Information display.
C - Speedometer.
D - Fuel gauge.
E - Engine coolant temperature gauge.
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