Rear Power Seat Control System Rear Power Seat Switch Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOLD SEAT CONTROL ECU

INSPECT REAR POWER SEAT SWITCH

CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - REAR POWER SEAT SWITCH)

REAR POWER SEAT CONTROL SYSTEM - Rear Power Seat Switch Circuit


DESCRIPTION

When the rear power seat switch is operated, a recline signal is sent to the fold seat control ECU. The ECU activates the power seat motor based on the signal from the rear power seat switch.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Seat.Front Power Seat Control System (W/ Memory).Rear Power Seat Control System Rear Power Seat Switch Circuit


INSPECTION PROCEDURE

1.CHECK FOLD SEAT CONTROL ECU


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Seat.Front Power Seat Control System (W/ Memory).Rear Power Seat Control System Rear Power Seat Switch Circuit

  1. Remove the fold seat control ECU with its connectors still connected (LandCruiser RM0000045DH00EX.html).

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    for LH side
    Tester Connection
    		Condition
    		Specified Condition
    d1-12 (RCLF) - Body ground
    		Always
    		11 to 14 V
    Rear power seat switch LH forward
    		Below 1 V
    d1-13 (RCLR) - Body ground
    		Always
    		11 to 14 V
    Rear power seat switch LH backward
    		Below 1 V
    RH side
    Tester Connection
    		Condition
    		Specified Condition
    c1-12 (RCLF) - Body ground
    		Always
    		11 to 14 V
    Rear power seat switch RH forward
    		Below 1 V
    c1-13 (RCLR) - Body ground
    		Always
    		11 to 14 V
    Rear power seat switch RH backward
    		Below 1 V
    Text in Illustration
    *A
    		for LH Side
    *B
    		for RH Side
    *a
    		Component with harness connected
    (Fold Seat Control ECU)


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM000001YWK019X.html)

2.INSPECT REAR POWER SEAT SWITCH


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Seat.Front Power Seat Control System (W/ Memory).Rear Power Seat Control System Rear Power Seat Switch Circuit

  1. Remove the rear power seat switch (LandCruiser RM0000045DM00EX.html).

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    4 (FWD) - 6 (E)
    		Always
    		10 kΩ or higher
    Rear power seat switch forward
    		Below 1 Ω
    5 (BACK) - 6 (E)
    		Always
    		10 kΩ or higher
    Rear power seat switch backward
    		Below 1 Ω


NG
REPLACE REAR POWER SEAT SWITCH (LandCruiser RM0000045DM00EX.html)
OK


3.CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - REAR POWER SEAT SWITCH)
  1. *1: for LH Side
  2. *2: for RH Side

  1. Disconnect the d1*1 or c1*2 ECU connector.

  1. Disconnect the R11*1 or Q10*2 switch connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    for LH Side
    Tester Connection
    		Condition
    		Specified Condition
    d1-12 (RCLF) - R11-4 (FWD)
    		Always
    		Below 1 Ω
    d1-12 (RCLF) - Body ground
    		Always
    		10 kΩ or higher
    d1-13 (RCLR) - R11-5 (BACK)
    		Always
    		Below 1 Ω
    d1-13 (RCLR) - Body ground
    		Always
    		10 kΩ or higher
    for RH Side
    Tester Connection
    		Condition
    		Specified Condition
    c1-12 (RCLF) - Q10-4 (FWD)
    		Always
    		Below 1 Ω
    c1-12 (RCLF) - Body ground
    		Always
    		10 kΩ or higher
    c1-13 (RCLR) - Q10-5 (BACK)
    		Always
    		Below 1 Ω
    c1-13 (RCLR) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE FOLD SEAT CONTROL ECU (LandCruiser RM0000045DP00EX.html)