FRONT POWER SEAT CONTROL SYSTEM(w/ Memory) One or more Power Seat Motors do not Operate

DESCRIPTION

Signals are input into the front power seat switch (for driver) or front power seat switch (for front passenger). The built-in ECU manages the signals received from the front power seat switch (for driver) or front power seat switch (for front passenger), and operates each motor. If the front power seat switch (for driver) or front power seat switch (for front passenger) receives more than 2 motor operation signals, the motor is stopped. Manual operation is restarted after the front power seat switch (for driver) or front power seat switch (for front passenger) receives 1 signal only.

WIRING DIAGRAM


  1. for Driver

    A0005ISE07
    A000443E03

  2. for Front Passenger

    A000900E08
    A000443E04

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK FRONT POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the front power seat switch (for driver) or front power seat switch (for front passenger) Click here.

      Result
      Result Proceed to
      Driver power seat functions do not operate A
      Front passenger power seat functions do not operate B

    B

    SYSTEM CHECK Click here

    A

  2. CHECK FRONT POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the front power seat switch (for driver) Click here.

      Result
      Result Proceed to
      One or more power seat functions (except lumbar support adjustment function) do not operate A
      All power seat functions do not operate B
      Front vertical and lifter functions do not operate C
      Only lumbar support adjustment function does not operate D

    B

    GO TO OTHER DIAGNOSIS PROCEDURE (Front Power Seat does not Operate with Front Power Seat Switch) Click here

    C

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - AUXILIARY BATTERY) Click here

    D

    INSPECT FRONT POWER SEAT SWITCH ASSEMBLY (FOR DRIVER) Click here

    A

  3. READ VALUE USING GTS (POWER SEAT SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Driver Seat / Data List.

    5. Read the Data List according to the display on the GTS.

      Driver Seat
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Reclining Rear Reclining switch (front power seat switch (for driver)) signal (Rearward) / ON or OFF

      ON: Reclining switch (front power seat switch (for driver)) (Rearward) on

      OFF: Reclining switch (front power seat switch (for driver)) (Rearward) off

      		 -
      Reclining Front Reclining switch (front power seat switch (for driver)) signal (Forward) / ON or OFF

      ON: Reclining switch (front power seat switch (for driver)) (Forward) on

      OFF: Reclining switch (front power seat switch (for driver)) (Forward) off

      		 -
      Front Vertical Down Front vertical switch (front power seat switch (for driver)) signal (Downward) / ON or OFF

      ON: Front vertical switch (front power seat switch (for driver)) (Downward) on

      OFF: Front vertical switch (front power seat switch (for driver)) (Downward) off

      		 -
      Front Vertical Up Front vertical switch (front power seat switch (for driver)) signal (Upward) / ON or OFF

      ON: Front vertical switch (front power seat switch (for driver)) (Upward) on

      OFF: Front vertical switch (front power seat switch (for driver)) (Upward) off

      		 -
      Lifter Switch Down Lifter switch (front power seat switch (for driver)) signal (Downward) / ON or OFF

      ON: Lifter switch (front power seat switch (for driver)) (Downward) on

      OFF: Lifter switch (front power seat switch (for driver)) (Downward) off

      		 -
      Lifter Switch Up Lifter switch (front power seat switch (for driver)) signal (Upward) / ON or OFF

      ON: Lifter switch (front power seat switch (for driver)) (Upward) on

      OFF: Lifter switch (front power seat switch (for driver)) (Upward) off

      		 -
      Slide Rear Slide switch (front power seat switch (for driver)) signal (Rearward) / ON or OFF

      ON: Slide switch (front power seat switch (for driver)) (Rearward) on

      OFF: Slide switch (front power seat switch (for driver)) (Rearward) off

      		 -
      Slide Front Slide switch (front power seat switch (for driver)) signal (Forward) / ON or OFF

      ON: Slide switch (front power seat switch (for driver)) (Forward) on

      OFF: Slide switch (front power seat switch (for driver)) (Forward) off

      		 -
      OK
      ON or OFF is displayed on the GTS according to the table above.

    NG

    REPLACE FRONT POWER SEAT SWITCH (FOR DRIVER) Click here

    OK

  4. PERFORM ACTIVE TEST USING GTS (POWER SEAT MOTOR)


    1. Enter the following menus: Body Electrical / Driver Seat / Active Test.

    2. Perform the Active Test according to the display on the GTS.

      Driver Seat
      Tester Display Test Part Control Range Diagnostic Note
      Seat Reclining Seat reclining operation OFF/Rear/Front -
      Front Vertical Operation Seat front vertical operation OFF/Down/Up -
      Lifter Operation Seat lifter operation OFF/Down/Up -
      Seat Slide Operation Seat slide operation OFF/Rear/Front -
      Result
      Result Proceed to
      The power seat functions operate normally. A
      Slide, front vertical or lifter function does not operate normally. B
      Reclining function does not operate normally. C

    A

    REPLACE FRONT POWER SEAT SWITCH (FOR DRIVER) Click here

    C

    INSPECT FRONT SEATBACK FRAME SUB-ASSEMBLY (FOR DRIVER) Click here

    B

  5. INSPECT FRONT SEAT ADJUSTER ASSEMBLY (FOR DRIVER)


    1. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Slide Motor (Front Seat Adjuster Assembly (for Driver)))

      Disconnect the X1*1, X2*1, X3*1, W1*2, W2*2 or W3*2connector from each motor.


      • *1: for LHD

      • *2: for RHD

      Tech Tips

      Check the motor operation of the applicable function.

    2. Check the operation of the slide motor.


      1. Check if the seat cushion moves smoothly when the auxiliary battery is connected to the slide motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seat cushion moves forward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seat cushion moves backward
    3. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Front Vertical Motor (Front Seat Adjuster Assembly (for Driver)))

      Check the operation of the front vertical motor.


      1. Check if the seat cushion moves smoothly when the auxiliary battery is connected to the front vertical motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seat cushion moves downward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seat cushion moves upward
    4. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Lifter Motor (Front Seat Adjuster Assembly (for Driver)))

      Check the operation of the lifter motor.


      1. Check if the seat cushion moves smoothly when the auxiliary battery is connected to the lifter motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seat cushion moves downward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seat cushion moves upward
        Result
        Result Proceed to
        NG A
        OK B

    A

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY (FOR DRIVER) Click here

    B

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - POWER SEAT MOTOR) Click here

  6. INSPECT FRONT SEATBACK FRAME SUB-ASSEMBLY (FOR DRIVER)


    1. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Reclining Motor (Front Seatback Frame Sub-assembly (for Driver)))

      Disconnect Z2*1 or Y2*2 reclining motor connector.


      • *1: for LHD

      • *2: for RHD

    2. Check the operation of the reclining motor.


      1. Check if the seatback moves smoothly when the auxiliary battery is connected to the reclining motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seatback moves forward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seatback moves backward

    NG

    REPLACE FRONT SEATBACK FRAME SUB-ASSEMBLY (FOR DRIVER) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - POWER SEAT MOTOR)


    1. Disconnect the X9*1 or W9*2 front power seat switch (for driver) connector.


      • *1: for LHD

      • *2: for RHD

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

      Tech Tips

      Check the wire harness and connector between the front power seat switch (for driver) and the applicable motor.

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      X9-3 (SLD+) - X1-4 Always Below 1 Ω
      X9-4 (SLD-) - X1-1 Always Below 1 Ω
      X9-5 (FRV-) - X2-4 Always Below 1 Ω
      X9-8 (FRV+) - X2-1 Always Below 1 Ω
      X9-10 (LFT+) - X3-1 Always Below 1 Ω
      X9-12 (LFT-) - X3-4 Always Below 1 Ω
      X9-9 (RCL+) - Z2-4 Always Below 1 Ω
      X9-11 (RCL-) -Z2-1 Always Below 1 Ω
      X9-3 (SLD+) - Body ground Always 10 kΩ or higher
      X9-4 (SLD-) - Body ground Always 10 kΩ or higher
      X9-5 (FRV-) - Body ground Always 10 kΩ or higher
      X9-8 (FRV+) - Body ground Always 10 kΩ or higher
      X9-10 (LFT+) - Body ground Always 10 kΩ or higher
      X9-12 (LFT-) - Body ground Always 10 kΩ or higher
      X9-9 (RCL+) - Body ground Always 10 kΩ or higher
      X9-11 (RCL-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      W9-3 (SLD+) - W1-4 Always Below 1 Ω
      W9-4 (SLD-) - W1-1 Always Below 1 Ω
      W9-5 (FRV-) - W2-4 Always Below 1 Ω
      W9-8 (FRV+) - W2-1 Always Below 1 Ω
      W9-10 (LFT+) - W3-1 Always Below 1 Ω
      W9-12 (LFT-) - W3-4 Always Below 1 Ω
      W9-9 (RCL+) - Y2-4 Always Below 1 Ω
      W9-11 (RCL-) - Y2-1 Always Below 1 Ω
      W9-3 (SLD+) - Body ground Always 10 kΩ or higher
      W9-4 (SLD-) - Body ground Always 10 kΩ or higher
      W9-5 (FRV-) - Body ground Always 10 kΩ or higher
      W9-8 (FRV+) - Body ground Always 10 kΩ or higher
      W9-10 (LFT+) - Body ground Always 10 kΩ or higher
      W9-12 (LFT-) - Body ground Always 10 kΩ or higher
      W9-9 (RCL+) - Body ground Always 10 kΩ or higher
      W9-11 (RCL-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE FRONT POWER SEAT SWITCH (FOR DRIVER) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - AUXILIARY BATTERY)


    1. Disconnect the X10*1 or W10*2 front power seat switch (for driver) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      for LHD
      Tester Connection Condition Specified Condition
      X10-12 (SYSB) - Body ground Power switch off 11 to 14 V
      for RHD
      Tester Connection Condition Specified Condition
      W10-12 (SYSB) - Body ground Always 11 to 14 V

    OK

    REPLACE FRONT POWER SEAT SWITCH (FOR DRIVER) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  9. INSPECT FRONT POWER SEAT SWITCH ASSEMBLY (FOR DRIVER)


    1. Remove the front power seat switch assembly (for driver) Click here.

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

      A0006R3E02
      Standard Resistance
      Tester Connection Condition Specified Condition
      2 - 3 Hold Below 1 Ω
      4 - 5
      3 - 4 Off
      4 - 5
      2 - 5 Release
      3 - 4
      Text in Illustration
      *A for LHD *B for RHD
      *1 Release Switch *2 Hold Switch
      *a

      Component without harness connected

      (Front Power Seat Switch Assembly (for Driver))

      		 - -

    NG

    REPLACE FRONT POWER SEAT SWITCH ASSEMBLY (FOR DRIVER) Click here

    OK

  10. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY (FOR DRIVER)


    1. A00081LE45
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly (for Driver))

      Disconnect the Z4*1 or Y4*2 lumbar support adjuster assembly (for driver) connector.


      • *1: for LHD

      • *2: for RHD

    2. Check the operation of the lumbar support adjuster assembly (for driver).


      1. Check that the seatback moves smoothly when the auxiliary battery is connected to the lumbar support adjuster assembly (for driver) connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 2

        		 Seatback moves forward

        Auxiliary battery positive (+) → Terminal 2

        Auxiliary battery negative (-) → Terminal 1

        		 Seatback moves backward

    NG

    REPLACE LUMBAR SUPPORT ADJUSTER ASSEMBLY (FOR DRIVER) Click here

    OK

  11. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR DRIVER) - FRONT POWER SEAT SWITCH ASSEMBLY (FOR DRIVER) - LUMBAR MOTOR)


    1. Disconnect the X9*1 or W9*2 front power seat switch (for driver) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      X9-7 (+B1) - X11-2 Always Below 1 Ω
      X9-2(GND1) - X11-4 Always Below 1 Ω
      X11-3 - Z4-1 Always Below 1 Ω
      X11-5 - Z4-2 Always Below 1 Ω
      X11-2 - Body ground Always 10 kΩ or higher
      X11-4 - Body ground Always 10 kΩ or higher
      X11-3 - Body ground Always 10 kΩ or higher
      X11-5 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      W9-7 (+B1) - W11-2 Always Below 1 Ω
      W9-2(GND1) - W11-4 Always Below 1 Ω
      W11-3 - Y4-1 Always Below 1 Ω
      W11-5 - Y4-2 Always Below 1 Ω
      W11-2 - Body ground Always 10 kΩ or higher
      W11-4 - Body ground Always 10 kΩ or higher
      W11-3 - Body ground Always 10 kΩ or higher
      W11-5 - Body ground Always 10 kΩ or higher

    OK

    REPLACE FRONT POWER SEAT SWITCH (FOR DRIVER) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. SYSTEM CHECK


    1. Check the vehicle specification.

      Result
      Result Proceed to
      w/ Power Seat Switch Assembly A
      w/o Power Seat Switch Assembly B

    B

    CHECK FRONT POWER SEAT OPERATION Click here

    A

  13. CHECK FRONT POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the front power seat switch (for front passenger) and power seat switch assembly Click here.

      Result
      Result Proceed to

      • Power seat operates do not normally by using the front power seat switch (for front passenger)

      • Power seat operates normally by using the power seat switch assembly

      		 A

      • Power seat operates normally by using the front power seat switch (for front passenger)

      • Power seat operates do not normally by using the power seat switch assembly

      		 B
      Power seat operates do not normally by using the front power seat switch (for front passenger) and power seat switch assembly C

    B

    INSPECT POWER SEAT SWITCH ASSEMBLY Click here

    C

    GO TO OTHER DIAGNOSIS PROCEDURE (Front Power Seat does not Operate with Front Power Seat Switch) Click here

    A

  14. CHECK FRONT POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the front power seat switch (for front passenger) Click here.

      Result
      Result Proceed to
      One or more power seat functions (except lumbar support adjustment function) do not operate A
      Front vertical and lifter functions do not operate B
      Only lumbar support adjustment function does not operate C

    B

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - AUXILIARY BATTERY) Click here

    C

    INSPECT FRONT POWER SEAT SWITCH ASSEMBLY (FOR FRONT PASSENGER) Click here

    A

  15. READ VALUE USING GTS (POWER SEAT SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Passenger Seat / Data List.

    5. Read the Data List according to the display on the GTS.

      Passenger Seat
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Reclining Rear Reclining switch (front power seat switch (for front passenger)) signal (Rearward) / ON or OFF

      ON: Reclining switch (front power seat switch (for front passenger)) (Rearward) on

      OFF: Reclining switch (front power seat switch (for front passenger)) (Rearward) off

      		 -
      Reclining Front Reclining switch (front power seat switch (for front passenger)) signal (Forward) / ON or OFF

      ON: Reclining switch (front power seat switch (for front passenger)) (Forward) on

      OFF: Reclining switch (front power seat switch (for front passenger)) (Forward) off

      		 -
      Front Vertical Down Front vertical switch (front power seat switch (for front passenger)) signal (Downward) / ON or OFF

      ON: Front vertical switch (front power seat switch (for front passenger)) (Downward) on

      OFF: Front vertical switch (front power seat switch (for front passenger)) (Downward) off

      		 -
      Front Vertical Up Front vertical switch (front power seat switch (for front passenger)) signal (Upward) / ON or OFF

      ON: Front vertical switch (front power seat switch (for front passenger)) (Upward) on

      OFF: Front vertical switch (front power seat switch (for front passenger)) (Upward) off

      		 -
      Lifter Switch Down Lifter switch (front power seat switch (for front passenger)) signal (Downward) / ON or OFF

      ON: Lifter switch (front power seat switch (for front passenger)) (Downward) on

      OFF: Lifter switch (front power seat switch (for front passenger)) (Downward) off

      		 -
      Lifter Switch Up Lifter switch (front power seat switch (for front passenger)) signal (Upward) / ON or OFF

      ON: Lifter switch (front power seat switch (for front passenger)) (Upward) on

      OFF: Lifter switch (front power seat switch (for front passenger)) (Upward) off

      		 -
      Slide Rear Slide switch (front power seat switch (for front passenger)) signal (Rearward) / ON or OFF

      ON: Slide switch (front power seat switch (for front passenger)) (Rearward) on

      OFF: Slide switch (front power seat switch (for front passenger)) (Rearward) off

      		 -
      Slide Front Slide switch (front power seat switch (for front passenger)) signal (Forward) / ON or OFF

      ON: Slide switch (front power seat switch (for front passenger)) (Forward) on

      OFF: Slide switch (front power seat switch (for front passenger)) (Forward) off

      		 -
      OK
      ON or OFF is displayed on the GTS according to the table above.

    NG

    REPLACE FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) Click here

    OK

  16. PERFORM ACTIVE TEST USING GTS (POWER SEAT MOTOR)


    1. Enter the following menus: Body Electrical / Passenger Seat / Active Test.

    2. Perform the Active Test according to the display on the GTS.

      Passenger Seat
      Tester Display Test Part Control Range Diagnostic Note
      Seat Reclining Seat reclining operation OFF/Rear/Front -
      Front Vertical Operation Seat front vertical operation OFF/Down/Up -
      Lifter Operation Seat lifter operation OFF/Down/Up -
      Seat Slide Operation Seat slide operation OFF/Rear/Front -
      Result
      Result Proceed to
      The power seat functions operate normally. A
      Slide, front vertical or lifter function does not operate normally. B
      Reclining function does not operate normally. C

    A

    REPLACE FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) Click here

    C

    INSPECT SEPARATE TYPE FRONT SEATBACK SPRING ASSEMBLY Click here

    B

  17. INSPECT FRONT SEAT ADJUSTER ASSEMBLY (FOR FRONT PASSENGER)


    1. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Slide Motor (Front Seat Adjuster Assembly (for Front Passenger)))

      Disconnect the W1*1, W2*1, W3*1, X1*2, X2*2 or X3*2 connector from each motor.


      • *1: for LHD

      • *2: for RHD

      Tech Tips

      Check the motor operation of the applicable function.

    2. Check the operation of the slide motor.


      1. Check if the seat cushion moves smoothly when the auxiliary battery is connected to the slide motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seat cushion moves forward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seat cushion moves backward
    3. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Front Vertical Motor (Front Seat Adjuster Assembly (for Front Passenger)))

      Check the operation of the front vertical motor.


      1. Check if the seat cushion moves smoothly when the auxiliary battery is connected to the front vertical motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seat cushion moves downward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seat cushion moves upward
    4. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Lifter Motor (Front Seat Adjuster Assembly (for Front Passenger)))

      Check the operation of the lifter motor.


      1. Check if the seat cushion moves smoothly when the auxiliary battery is connected to the lifter motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seat cushion moves downward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seat cushion moves upward
        Result
        Result Proceed to
        NG A
        OK B

    A

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY (FOR FRONT PASSENGER) Click here

    B

    CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - POWER SEAT MOTOR) Click here

  18. INSPECT SEPARATE TYPE FRONT SEATBACK SPRING ASSEMBLY


    1. A0007P8E14
      Text in Illustration
      *a

      Component without harness connected

      (Reclining Motor (Separate Type Front Seatback Spring Assembly)

      Disconnect Y2*1 or Z2*2 reclining motor connector.


      • *1: for LHD

      • *2: for RHD

    2. Check the operation of the reclining motor.


      1. Check if the seatback moves smoothly when the auxiliary battery is connected to the reclining motor connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 4

        Auxiliary battery negative (-) → Terminal 1

        		 Seatback moves forward

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 4

        		 Seatback moves backward

    NG

    REPLACE SEPARATE TYPE FRONT SEATBACK SPRING ASSEMBLY Click here

    OK

  19. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - POWER SEAT MOTOR)


    1. Disconnect the W9*1 or X9*2 front power seat switch (for front passenger) connector.


      • *1: for LHD

      • *2: for RHD

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

      Tech Tips

      Check the wire harness and connector between the front power seat switch (for front passenger) and applicable motor.

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      W9-3 (SLD+) - W1-4 Always Below 1 Ω
      W9-4 (SLD-) - W1-1 Always Below 1 Ω
      W9-5 (FRV-) - W2-4 Always Below 1 Ω
      W9-8 (FRV+) - W2-1 Always Below 1 Ω
      W9-10 (LFT+) - W3-1 Always Below 1 Ω
      W9-12 (LFT-) - W3-4 Always Below 1 Ω
      W9-9 (RCL+) - Y2-4 Always Below 1 Ω
      W9-11 (RCL-) - Y2-1 Always Below 1 Ω
      W9-3 (SLD+) - Body ground Always 10 kΩ or higher
      W9-4 (SLD-) - Body ground Always 10 kΩ or higher
      W9-5 (FRV-) - Body ground Always 10 kΩ or higher
      W9-8 (FRV+) - Body ground Always 10 kΩ or higher
      W9-10 (LFT+) - Body ground Always 10 kΩ or higher
      W9-12 (LFT-) - Body ground Always 10 kΩ or higher
      W9-9 (RCL+) - Body ground Always 10 kΩ or higher
      W9-11 (RCL-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      X9-3 (SLD+) - X1-4 Always Below 1 Ω
      X9-4 (SLD-) - X1-1 Always Below 1 Ω
      X9-5 (FRV-) - X2-4 Always Below 1 Ω
      X9-8 (FRV+) - X2-1 Always Below 1 Ω
      X9-10 (LFT+) - X3-1 Always Below 1 Ω
      X9-12 (LFT-) - X3-4 Always Below 1 Ω
      X9-9 (RCL+) - Z2-4 Always Below 1 Ω
      X9-11 (RCL-) - Z2-1 Always Below 1 Ω
      X9-3 (SLD+) - Body ground Always 10 kΩ or higher
      X9-4 (SLD-) - Body ground Always 10 kΩ or higher
      X9-5 (FRV-) - Body ground Always 10 kΩ or higher
      X9-8 (FRV+) - Body ground Always 10 kΩ or higher
      X9-10 (LFT+) - Body ground Always 10 kΩ or higher
      X9-12 (LFT-) - Body ground Always 10 kΩ or higher
      X9-9 (RCL+) - Body ground Always 10 kΩ or higher
      X9-11 (RCL-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  20. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - AUXILIARY BATTERY)


    1. Disconnect the W10*1 or X10*2 front power seat switch (for front passenger) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Voltage
      for LHD
      Tester Connection Condition Specified Condition
      W10-12 (SYSB) - Body ground Power switch off 11 to 14 V
      for RHD
      Tester Connection Condition Specified Condition
      X10-12 (SYSB) - Body ground Power switch off 11 to 14 V

    OK

    REPLACE FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  21. INSPECT FRONT POWER SEAT SWITCH ASSEMBLY (FOR FRONT PASSENGER)


    1. Remove the front power seat switch assembly (for front passenger) Click here.

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

      A00094FE02
      Standard Resistance
      Tester Connection Condition Specified Condition
      2 - 3 Hold Below 1 Ω
      4 - 5
      3 - 4 Off
      4 - 5
      2 - 5 Release
      3 - 4
      Text in Illustration
      *A for LHD *B for RHD
      *1 Hold Switch *2 Release Switch
      *a

      Component without harness connected

      (Front Power Seat Switch Assembly (for Front Passenger))

      		 - -

    NG

    REPLACE FRONT POWER SEAT SWITCH ASSEMBLY (FOR FRONT PASSENGER) Click here

    OK

  22. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY (FOR FRONT PASSENGER)


    1. A00081LE45
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly (for Front Passenger))

      Disconnect Y4*1 or Z4*2 lumbar support adjuster assembly (for front passenger) connector.


      • *1: for LHD

      • *2: for RHD

    2. Check the operation of the lumbar support adjuster assembly (for front passenger).


      1. Check that the seatback moves smoothly when the auxiliary battery is connected to the lumbar support adjuster assembly (for front passenger) connector terminals.

        OK
        Condition Operational Direction

        Auxiliary battery positive (+) → Terminal 1

        Auxiliary battery negative (-) → Terminal 2

        		 Seatback moves forward

        Auxiliary battery positive (+) → Terminal 2

        Auxiliary battery negative (-) → Terminal 1

        		 Seatback moves backward

    NG

    REPLACE LUMBAR SUPPORT ADJUSTER ASSEMBLY (FOR FRONT PASSENGER) Click here

    OK

  23. HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - FRONT POWER SEAT SWITCH ASSEMBLY (FOR FRONT PASSENGER) - LUMBAR MOTOR)


    1. Disconnect the W9*1 or X9*2 front power seat switch (for front passenger) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      W9-7(+B) - W11-2 Always Below 1 Ω
      W9-2(GND) - W11-4 Always Below 1 Ω
      W11-3 - Y4-1 Always Below 1 Ω
      W11-5 - Y4-2 Always Below 1 Ω
      W11-2 - Body ground Always 10 kΩ or higher
      W11-4 - Body ground Always 10 kΩ or higher
      W11-3 - Body ground Always 10 kΩ or higher
      W11-5 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      X9-7(+B) - X11-2 Always Below 1 Ω
      X9-2(GND) - X11-4 Always Below 1 Ω
      X11-3 - Z4-1 Always Below 1 Ω
      X11-5 - Z4-2 Always Below 1 Ω
      X11-2 - Body ground Always 10 kΩ or higher
      X11-4 - Body ground Always 10 kΩ or higher
      X11-3 - Body ground Always 10 kΩ or higher
      X11-5 - Body ground Always 10 kΩ or higher

    OK

    REPLACE FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  24. INSPECT POWER SEAT SWITCH ASSEMBLY


    1. Remove the power seat switch assembly Click here.

    2. A0005RME07
      Text in Illustration
      *1 Reclining Switch
      *2 Slide Switch
      *a

      Component without harness connected

      (Power Seat Switch Assembly)

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

      Standard Resistance
      Reclining Switch
      Tester Connection Condition Specified Condition
      3 - 4 Front Below 1 Ω
      3 - 4 Off 10 kΩ or higher
      3 - 5
      3 - 5 Rear Below 1 Ω
      Slide Switch
      Tester Connection Condition Specified Condition
      2- 3 Front Below 1 Ω
      2- 3 Off 10 kΩ or higher
      1- 3
      1- 3 Rear Below 1 Ω

    NG

    REPLACE POWER SEAT SWITCH ASSEMBLY Click here

    OK

  25. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the W10 front power seat switch (for front passenger) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W10-2 (SLDF) - Y5-2 Always Below 1 Ω
      W10-6 (SLDR) - Y5-1 Always Below 1 Ω
      W10-9 (RCLF) - Y5-4 Always Below 1 Ω
      W10-10 (RCLR) - Y5-5 Always Below 1 Ω
      Y5-1 - Body ground Always 10 kΩ or higher
      Y5-2 - Body ground Always 10 kΩ or higher
      Y5-3 - Body ground Always 10 kΩ or higher
      Y5-4 - Body ground Always 10 kΩ or higher
      Y5-5 - Body ground Always 10 kΩ or higher

    OK

    REPLACE FRONT POWER SEAT SWITCH (FOR FRONT PASSENGER) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR