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REAR POWER SEAT CONTROL SYSTEM One or more Power Seat Motors do not Operate

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DTC Code DTC Name
  One or more Power Seat Motors do not Operate
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DESCRIPTION

Signals are input into the position control ECU assembly. The built-in ECU manages the signals received from the position control ECU assembly, and operates each motor and valve control ECU. If the position control ECU assembly receives more than 2 motor operation signals, the motor or valve control ECU is stopped. Manual operation is restarted after the position control ECU assembly receives 1 signal only.

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WIRING DIAGRAM


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  1. Figure 2. for RHD: B004U2YE02
    B004UI0E02
    Figure 1. for LHD: B004WR6E05

    for Rear Seat RH:

  2. B004UI0E03
    Figure 4. for RHD: B004WR6E06
    Figure 3. for LHD: B004U2YE03

    for Rear Seat LH:

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CAUTION / NOTICE / HINT

Note:

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

  • Initializing the position control ECU assembly will clear the seat position memory.

Tip:

  • Make sure to initialize the position control ECU assembly after replacing the seat assembly or any related parts (including removal and installation).

  • Before initializing the seat ECU, make sure that the D/C CUT fuse is normal.

  • When any of the following conditions are met, the seat position Information in the position control ECU assembly will be cleared.


    • The power switch is turned off with any of the seat switches being operated and the D/C CUT fuse removed.

    • The power switch is turned off within 1 second of any of the seat switches being operated with the D/C CUT fuse removed.

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PROCEDURE


  1. Click here

    CHECK REAR POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the rear power seat switch (rear multi operation panel).

      Click here

      Result
      Result Proceed to
      Rear RH power seat functions do not operate A
      Rear LH power seat functions do not operate B

  2. Click here

    CHECK REAR POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the rear power seat switch (rear multi operation panel).

      Click here

      Result
      Result Proceed to
      One or more power seat functions do not operate A
      All power seat functions do not operate B

  3. Click here

    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 / Rear Right Seat / Data List.

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


      1. Body Electrical > Rear Right Seat > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Headrest UP Headrest switch signal (upward) ON or OFF

        ON: Headrest switch (upward) on

        OFF: Headrest switch off

        		 -
        Headrest Down Headrest switch signal (downward) ON or OFF

        ON: Headrest switch (downward) on

        OFF: Headrest switch off

        		 -
        Slide Rear Slide switch signal (rearward) ON or OFF

        ON: Slide switch (rearward) on

        OFF: Slide switch off

        		 -
        Slide Front Slide switch signal (forward) ON or OFF

        ON: Slide switch (forward) on

        OFF: Slide switch off

        		 -
        Ottoman Up ottoman switch signal (upward) ON or OFF

        ON: Ottoman switch (upward) on

        OFF: Ottoman switch off

        		 for LHD
        Ottoman Down Ottoman switch signal (downward) ON or OFF

        ON: Ottoman switch (downward) on

        OFF: Ottoman switch off

        		 for LHD
        Reclining Front Reclining switch signal (forward) ON or OFF

        ON: Reclining switch (forward) on

        OFF: Reclining switch off

        		 for LHD
        Reclining Rear Reclining switch signal (rearward) ON or OFF

        ON: Reclining switch (rearward) on

        OFF: Reclining switch off

        		 for LHD
        Headrest Front/Rear Switch Front Headrest switch signal (forward) ON or OFF

        ON: Headrest switch (forward) on

        OFF: Headrest switch off

        		 -
        Headrest Front/Rear Switch Rear Headrest switch signal (rearward) ON or OFF

        ON: Headrest switch (rearward) on

        OFF: Headrest switch off

        		 -
        Lumbar Switch Front Lumbar support switch signal (forward) ON or OFF

        ON: Lumbar support switch (forward) on

        OFF: Lumbar support switch off

        		 -
        Lumbar Switch Rear Lumbar support switch signal (rearward) ON or OFF

        ON: Lumbar support switch (rearward) on

        OFF: Lumbar support switch off

        		 -
        Lumbar Switch Up Lumbar support switch signal (upward) ON or OFF

        ON: Lumbar support switch (upward) on

        OFF: Lumbar support switch off

        		 -
        Lumbar Switch Down Lumbar support switch signal (downward) ON or OFF

        ON: Lumbar support switch (downward) on

        OFF: Lumbar support switch off

        		 -
        Lower Back Switch Front Lower back switch signal (forward) ON or OFF

        ON: Lower back switch (forward) on

        OFF: Lower back switch off

        		 -
        Lower Back Switch Rear Lower back switch signal (rearward) ON or OFF

        ON: Lower back switch (rearward) on

        OFF: Lower back switch off

        		 -
        Adjustable Seat Switch Front Adjustable seat switch signal (forward) ON or OFF

        ON: Adjustable seat switch (forward) on

        OFF: Adjustable seat switch off

        		 -
        Adjustable Seat Switch Rear Adjustable seat switch signal (rearward) ON or OFF

        ON: Adjustable seat switch (rearward) on

        OFF: Adjustable seat switch off

        		 -
        Front Vertical Switch Up Front vertical switch signal (upward) ON or OFF

        ON: Front vertical switch (upward) on

        OFF: Front vertical switch off

        		 -
        Front Vertical Switch Down Front vertical switch signal (downward) ON or OFF

        ON: Front vertical switch (downward) on

        OFF: Front vertical switch off

        		 -
        Ottoman Short/Long Switch Long Ottoman switch signal (forward) ON or OFF

        ON: Ottoman switch (forward) on

        OFF: Ottoman switch off

        		 for LHD
        Ottoman Short/Long Switch Short Ottoman switch signal (rearward) ON or OFF

        ON: Ottoman switch (rearward) on

        OFF: Ottoman switch off

        		 for LHD
























      1. Body Electrical > Rear Right Seat > Data List
        Tester Display
        Headrest UP
        Headrest Down
        Slide Rear
        Slide Front
        Ottoman Up
        Ottoman Down
        Reclining Front
        Reclining Rear
        Headrest Front/Rear Switch Front
        Headrest Front/Rear Switch Rear
        Lumbar Switch Front
        Lumbar Switch Rear
        Lumbar Switch Up
        Lumbar Switch Down
        Lower Back Switch Front
        Lower Back Switch Rear
        Adjustable Seat Switch Front
        Adjustable Seat Switch Rear
        Front Vertical Switch Up
        Front Vertical Switch Down
        Ottoman Short/Long Switch Long
        Ottoman Short/Long Switch Short

























      OK
      ON or OFF is displayed on the GTS according to the table above.
      Result
      Proceed to
      OK
      NG

  4. Click here

    PERFORM ACTIVE TEST USING GTS (POWER SEAT MOTOR)


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

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


      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display Measurement Item Control Range Diagnostic Note
        Seat Slide Operation Slide motor operating OFF/Rear/Front -
        Seat Reclining Reclining motor operating OFF/Rear/Front for LHD
        Headrest Operation Headrest up/down motor operating OFF/Down/Up -
        Ottoman Ottoman up/down motor operating OFF/Down/Up for LHD
        Front Vertical Front tilt motor operating OFF/Rear/Front -
        Headrest Front/Rear Headrest front/rear motor operating OFF/Rear/Front -
        Ottoman Short/Long Ottoman long/short motor operating OFF/Long/Short for LHD
        Lumbar Upper Pneumatic support function (lumbar upper) operating OFF/Intake/Exhaust -
        Lumbar Middle Pneumatic support function (lumbar middle) operating OFF/Intake/Exhaust -
        Lumbar Bottom Pneumatic support function (lumbar bottom) operating OFF/Intake/Exhaust -
        Lower Back Pneumatic support function (low back) operating OFF/Intake/Exhaust -
        Adjustable Seat Pneumatic support function (adjustable seat) operating OFF/Intake/Exhaust -














      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Seat Slide Operation





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Seat Reclining





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Headrest Operation





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Ottoman





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Front Vertical





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Headrest Front/Rear





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Ottoman Short/Long





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Lumbar Upper





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Lumbar Middle





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Lumbar Bottom





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Lumbar Bottom





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Lower Back





      1. Body Electrical > Rear Right Seat > Active Test
        Tester Display
        Adjustable Seat




      Result
      Result Proceed to
      The power seat functions operate normally. A
      Slide function, front vertical function or ottoman function (for LHD) does not operate normally. B
      Headrest adjuster function does not operate normally. C
      Reclining function does not operate normally (for LHD). D
      Lumbar support function does not operate normally. E

  5. Click here

    INSPECT REAR SEAT ADJUSTER ASSEMBLY


    1. for LHD:


      1. Remove the rear No. 2 seat adjuster assembly.

        Click here

      2. Inspect the rear No. 2 seat adjuster assembly.

        Click here

    2. for RHD:


      1. Remove the rear No. 1 seat adjuster assembly.

        Click here

      2. Inspect the rear No. 1 seat adjuster assembly.

        Click here

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    • A

      REPLACE POSITION CONTROL ECU ASSEMBLY RHClick here

    • B

      REPLACE REAR NO. 2 ADJUSTER ASSEMBLYClick here

    • C

      REPLACE REAR NO. 1 SEAT ADJUSTER ASSEMBLYClick here

  6. Click here

    INSPECT REAR SEAT HEADREST ADJUSTER SUB-ASSEMBLY


    1. for LHD:


      1. Remove the rear No. 2 seat headrest adjuster sub-assembly.

        Click here

      2. Inspect the rear No. 2 seat headrest adjuster sub-assembly.

        Click here

    2. for RHD:


      1. Remove the rear No. 1 seat headrest adjuster sub-assembly.

        Click here

      2. Inspect the rear No. 1 seat headrest adjuster sub-assembly.

        Click here

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    • A

      REPLACE POSITION CONTROL ECU ASSEMBLY RHClick here

    • B

      REPLACE REAR NO. 2 SEAT HEADREST ADJUSTER SUB-ASSEMBLYClick here

    • C

      REPLACE REAR NO. 1 SEAT HEADREST ADJUSTER SUB-ASSEMBLYClick here

  7. Click here

    INSPECT REAR SEAT RECLINING ADJUSTER SUB-ASSEMBLY RH


    1. Remove rear seat reclining adjuster sub-assembly RH

      Click here

    2. Inspect rear seat reclining adjuster sub-assembly RH

      Click here

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE POSITION CONTROL ECU ASSEMBLY RHClick here

    • NG

      REPLACE REAR SEAT RECLINING ADJUSTER SUB-ASSEMBLY RH

  8. Click here

    INSPECT LUMBAR SUPPRT PUMP SUB-ASSEMBLY RH


    1. Remove the lumbar support pump sub-assembly RH.

      Click here

    2. Inspect the lumbar support pump sub-assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

  9. Click here

    CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY RH - LUMBAR SUPPORT PUMP SUB-ASSEMBLY RH)


    1. Disconnect the R6 position control ECU assembly RH connector.

    2. Disconnect the R17 lumbar support pump sub-assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R6-10 (POM) - R17-1 Always Below 1 Ω
      R6-11 (POMG) - R17-2 Always Below 1 Ω
      R6-10 (POM) or R17-1 - Other terminals and body ground Always 10 kΩ or higher
      R6-11 (POMG) or R17-2 - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. Click here

    CHECK HARNESS AND CONNECTOR (SEAT CHECK VALVE - BATTERY AND BODY GROUND)


    1. Disconnect the seatback check with bracket valve RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R11-1 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      R11-3 (SYSB) - Body ground Power switch off 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. Click here

    CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY RH - SEAT CHECK VALVE)


    1. Disconnect the R7 position control ECU assembly RH connector.

    2. Disconnect the R11 seatback check with bracket valve RH connector.

    3. Disconnect the R12 NO. 1 seatback check with hose valve RH connector.

    4. Disconnect the T3 NO. 2 seatback check with hose valve RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R7-2 (LINM) - R11-5 (LIN) Always Below 1 Ω
      R7-2 (LINM) or R11-5 (LIN) - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      CHECK PNEUMATIC SUPPORT FUNCTIONClick here

      CHECK PNEUMATIC SUPPORT FUNCTIONClick here

      CHECK PNEUMATIC SUPPORT FUNCTIONClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. Click here

    CHECK REAR POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the rear power seat switch (rear multi operation panel).

      Click here

      Result
      Result Proceed to
      One or more power seat functions do not operate A
      All power seat functions do not operate B

  13. Click here

    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 / Rear Left Seat / Data List.

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


      1. Body Electrical > Rear Left Seat > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Headrest UP Headrest switch signal (upward) ON or OFF

        ON: Headrest switch (upward) on

        OFF: Headrest switch off

        		 -
        Headrest Down Headrest switch signal (downward) ON or OFF

        ON: Headrest switch (downward) on

        OFF: Headrest switch off

        		 -
        Ottoman Up Ottoman switch signal (upward) ON or OFF

        ON: Ottoman switch (upward) on

        OFF: Ottoman switch off

        		 for RHD
        Ottoman Down Ottoman switch signal (downward) ON or OFF

        ON: Ottoman switch (downward) on

        OFF: Ottoman switch off

        		 for RHD
        Reclining Front Reclining switch signal (forward) ON or OFF

        ON: Reclining switch (forward) on

        OFF: Reclining switch off

        		 for RHD
        Reclining Rear Reclining switch signal (rearward) ON or OFF

        ON: Reclining switch (rearward) on

        OFF: Reclining switch off

        		 for RHD
        Headrest Front/Rear Switch Front Headrest switch signal (forward) ON or OFF

        ON: Headrest switch (forward) on

        OFF: Headrest switch off

        		 -
        Headrest Front/Rear Switch Rear Headrest switch signal (rearward) ON or OFF

        ON: Headrest switch (rearward) on

        OFF: Headrest switch off

        		 -
        Lumbar Switch Front Lumbar support switch signal (forward) ON or OFF

        ON: Lumbar support switch (forward) on

        OFF: Lumbar support switch off

        		 -
        Lumbar Switch Rear Lumbar support switch signal (rearward) ON or OFF

        ON: Lumbar support switch (rearward) on

        OFF: Lumbar support switch off

        		 -
        Lumbar Switch Up Lumbar support switch signal (upward) ON or OFF

        ON: Lumbar support switch (upward) on

        OFF: Lumbar support switch off

        		 -
        Lumbar Switch Down Lumbar support switch signal (downward) ON or OFF

        ON: Lumbar support switch (downward) on

        OFF: Lumbar support switch off

        		 -
        Lower Back Switch Front Lower back switch signal (forward) ON or OFF

        ON: Lower back switch (forward) on

        OFF: Lower back switch off

        		 -
        Lower Back Switch Rear Lower back switch signal (rearward) ON or OFF

        ON: Lower back switch (rearward) on

        OFF: Lower back switch off

        		 -
        Adjustable Seat Switch Front Adjustable seat switch signal (forward) ON or OFF

        ON: Adjustable seat switch (forward) on

        OFF: Adjustable seat switch off

        		 -
        Adjustable Seat Switch Rear Adjustable seat switch signal (rearward) ON or OFF

        ON: Adjustable seat switch (rearward) on

        OFF: Adjustable seat switch off

        		 -
        Front Vertical Switch Up Front vertical switch signal (upward) ON or OFF

        ON: Front vertical switch (upward) on

        OFF: Front vertical switch off

        		 -
        Front Vertical Switch Down Front vertical switch signal (downward) ON or OFF

        ON: Front vertical switch (downward) on

        OFF: Front vertical switch off

        		 -
        Ottoman Short/Long Switch Long Ottoman switch signal (forward) ON or OFF

        ON: Ottoman switch (forward) on

        OFF: Ottoman switch off

        		 for RHD
        Ottoman Short/Long Switch Short Ottoman switch signal (rearward) ON or OFF

        ON: Ottoman switch (rearward) on

        OFF: Ottoman switch off

        		 for RHD






















      1. Body Electrical > Rear Left Seat > Data List
        Tester Display
        Headrest UP
        Headrest Down
        Ottoman Up
        Ottoman Down
        Reclining Front
        Reclining Rear
        Headrest Front/Rear Switch Front
        Headrest Front/Rear Switch Rear
        Lumbar Switch Front
        Lumbar Switch Rear
        Lumbar Switch Up
        Lumbar Switch Down
        Lower Back Switch Front
        Lower Back Switch Rear
        Adjustable Seat Switch Front
        Adjustable Seat Switch Rear
        Front Vertical Switch Up
        Front Vertical Switch Down
        Ottoman Short/Long Switch Long
        Ottoman Short/Long Switch Short























      OK
      ON or OFF is displayed on the GTS according to the table above.
      Result
      Proceed to
      OK
      NG

  14. Click here

    PERFORM ACTIVE TEST USING GTS (POWER SEAT MOTOR)


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

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


      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display Measurement Item Control Range Diagnostic Note
        Seat Slide Operation Slide motor operating OFF/Rear/Front -
        Seat Reclining Reclining motor operating OFF/Rear/Front for RHD
        Headrest Operation Headrest up/down motor operating OFF/Down/Up -
        Ottoman Ottoman up/down motor operating OFF/Down/Up for RHD
        Front Vertical Front tilt motor operating OFF/Rear/Front -
        Headrest Front/Rear Headrest front/rear motor operating OFF/Rear/Front -
        Ottoman Short/Long Ottoman long/short motor operating OFF/Long/Short for RHD
        Lumbar Upper Pneumatic support function (lumbar upper) operating OFF/Intake/Exhaust -
        Lumbar Middle Pneumatic support function (lumbar middle) operating OFF/Intake/Exhaust -
        Lumbar Bottom Pneumatic support function (lumbar bottom) operating OFF/Intake/Exhaust -
        Lower Back Pneumatic support function (low back) operating OFF/Intake/Exhaust -
        Adjustable Seat Pneumatic support function (adjustable seat) operating OFF/Intake/Exhaust -














      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Seat Slide Operation





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Seat Reclining





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Headrest Operation





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Ottoman





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Front Vertical





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Headrest Front/Rear





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Ottoman Short/Long





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Lumbar Upper





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Lumbar Middle





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Lumbar Bottom





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Lower Back





      1. Body Electrical > Rear Left Seat > Active Test
        Tester Display
        Adjustable Seat




      Result
      Result Proceed to
      The power seat functions operate normally. A
      Slide function, front vertical function or ottoman function (for RHD) does not operate normally. B
      Headrest adjuster function does not operate normally. C
      Reclining function does not operate normally (for RHD). D
      Lumbar support function does not operate normally. E

  15. Click here

    INSPECT REAR SEAT ADJUSTER ASSEMBLY


    1. for LHD:


      1. Remove the rear No. 1 seat adjuster assembly.

        Click here

      2. Inspect the rear No. 1 seat adjuster assembly.

        Click here

    2. for RHD:


      1. Remove the rear No. 2 seat adjuster assembly.

        Click here

      2. Inspect the rear No. 2 seat adjuster assembly.

        Click here

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    • A

      REPLACE POSITION CONTROL ECU ASSEMBLY LHClick here

    • B

      REPLACE REAR NO. 1 SEAT ADJUSTER ASSEMBLYClick here

    • C

      REPLACE REAR NO. 2 ADJUSTER ASSEMBLYClick here

  16. Click here

    INSPECT REAR SEAT HEADREST ADJUSTER SUB-ASSEMBLY


    1. for LHD:


      1. Remove the rear No. 1 seat headrest adjuster sub-assembly.

        Click here

      2. Inspect the rear No. 1 seat headrest adjuster sub-assembly.

        Click here

    2. for RHD:


      1. Remove the rear No. 2 seat headrest adjuster sub-assembly.

        Click here

      2. Inspect the rear No. 2 seat headrest adjuster sub-assembly.

        Click here

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    • A

      REPLACE POSITION CONTROL ECU ASSEMBLY LHClick here

    • B

      REPLACE REAR NO. 2 SEAT HEADREST ADJUSTER SUB-ASSEMBLYClick here

    • C

      REPLACE REAR NO. 2 SEAT HEADREST ADJUSTER SUB-ASSEMBLYClick here

  17. Click here

    INSPECT REAR SEAT RECLINING ADJUSTER SUB-ASSEMBLY LH


    1. Remove rear seat reclining adjuster sub-assembly LH

      Click here

    2. Inspect rear seat reclining adjuster sub-assembly LH

      Click here

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE POSITION CONTROL ECU ASSEMBLY LHClick here

    • NG

      REPLACE REAR SEAT RECLINING ADJUSTER SUB-ASSEMBLY LH

  18. Click here

    INSPECT LUMBAR SUPPORT PUMP SUB-ASSEMBLY LH


    1. Remove the lumbar support pump sub-assembly LH.

      Click here

    2. Inspect the lumbar support pump sub-assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

  19. Click here

    CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY LH - LUMBAR SUPPORT PUMP SUB-ASSEMBLY LH)


    1. Disconnect the R40 position control ECU assembly LH connector.

    2. Disconnect the R48 lumbar support pump sub-assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R40-10 (POM) - R48-1 Always Below 1 Ω
      R40-11 (POMG) - R48-2 Always Below 1 Ω
      R40-10 (POM) or R48-1 - Other terminals and body ground Always 10 kΩ or higher
      R40-11 (POMG) or R48-2 - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  20. Click here

    CHECK HARNESS AND CONNECTOR (SEAT CHECK VALVE - BATTERY AND BODY GROUND)


    1. Disconnect the seatback check with bracket valve LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R44-1 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      R44-3 (SYSB) - Body ground Power switch off 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  21. Click here

    CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY RH - SEAT CHECK VALVE)


    1. Disconnect the R41 position control ECU assembly LH connector.

    2. Disconnect the R44 seatback check with bracket valve LH connector.

    3. Disconnect the R45 NO. 1 seatback check with hose valve LH connector.

    4. Disconnect the T10 NO. 2 seatback check with hose valve LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R41-2 (LINM) - R44-5 (LIN) Always Below 1 Ω
      R41-2 (LINM) or R44-5 (LIN) - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OK

      CHECK PNEUMATIC SUPPORT FUNCTIONClick here

      CHECK PNEUMATIC SUPPORT FUNCTIONClick here

      CHECK PNEUMATIC SUPPORT FUNCTIONClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR