Ford Explorer: Third Row Seats / Description and Operation - Third Row Seats - System Operation and Component Description

Ford Explorer 2020-2022 Service Manual / Body and Paint / Body and Paint / Third Row Seats / Description and Operation - Third Row Seats - System Operation and Component Description

System Operation

System Diagram


Item Description
1 SCMJ
2 HS-CAN1
3 PCM
4 Liftgate Ajar Switch
5 Power Fold Seat Control Switch
6 Power Folding Seat Motors
7 Hall-Effect Sensors
8 Motors
9 MS-CAN
10 GWM
11 BCM

Network Message Chart

  SCMJ Network Input Messages


Broadcast Message Originating Module Message Purpose
Vehicle speed   PCM The vehicle speed is one of the inputs the SCMJ requires to enable the power folding seat feature.
Liftgate ajar switch   BCM Provides the status of the rear lifgate. The rear liftgate position is one of the inputs the SCMJ requrires to enable the power folding seat feature.

Power-Folding Seats

The third row power seat system includes the following components:

  • Power fold seat control switch (located on the RH loadspace trim panel)
  • SCMJ (located under the LH 2nd row seat cushion)
  • LH and RH power-fold seat motors (part of the third row seat backrest)

The power fold motors rotate the LH or RH seat backrests. The motor assemblies contain Hall-effect sensors that indicate backrest position to the SCMJ.

The LH and RH latch motors receive voltage from the SCMJ.

The third row power fold seat only operates when the vehicle is stationary and the liftgate is open. The folding head restraints must be manually returned to the upright position. Power to the seat times out after 10 minutes but can be enabled by opening any door, turning the ignition on, pressing any keyless entry keypad button (if equipped) or the unlock button on the remote transmitter.

Component Description

Power Fold Seat Motor

The power fold seat motors are bi-directional and each contains a Hall-effect sensor used by the SCMJ to monitor motor movement and seat position. The power fold seat motors are serviced by installing a new third row seat backrest.

SCMJ

The SCMJ controls the operation of the third row power fold seat. PMI is required when a new SCMJ is installed.

Power Fold Seat Control Switch

The power fold seat control switch is an input to the SCMJ. The power fold seat control switch contains 3 momentary contact switches:

  • LH seat
  • RH seat
  • Both LH and RH seats

Resistors within the power fold seat switch allow the SCMJ to determine the direction each switch is activated.

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    Categories

    Locking and Unlocking

    You can use the power door lock control or the remote control to lock and unlock your vehicle.

    Power Door Locks

    The power door lock control is on the driver and front passenger door panels.

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