FRONT POWER SEAT CONTROL SYSTEM(for RHD) One or more Power Seat Motors do not Operate

DESCRIPTION

When a signal is input into the power seat switch assembly*1 or position control ECU assembly*2, *3, *4, the ECU manages the signals received from the power seat switch, and operates each motor. If the power seat switch assembly*1 or position control ECU assembly*2, *3, *4 receives more than 2 motor operation signals, the motor is stopped. Manual operation is restarted after the power seat switch assembly*1 or position control ECU assembly*2, *3, *4 receives 1 signal only.


WIRING DIAGRAM


  1. for Driver Side (Standard Seat Type):

    A000Q5RE05
    A000PVJE05

  2. for Driver Side (Sports Seat Type):

    A000NWAE12
    A000QMVE07
    A000QCKE07
    A000SIXE05
    *a LF
    *b Position Control ECU Assembly
    *c Power Seat Switch Assembly

  3. for Driver Side (Luxury Seat Type):

    A000NWAE12
    A000QMVE07
    A000RRNE05
    A000R3OE06
    *a SET
    *b LF
    *c Power Seat Switch Assembly
    *d Position Control ECU Assembly

  4. for Front Passenger Side (Luxury Seat Type):

    A000NWAE15
    A000QUVE09
    A000O3VE06
    A000RFYE05

PROCEDURE


  1. FRONT POWER SEAT CONTROL SYSTEM


    1. Check which power seat functions are malfunctioning.

      Result
      Result Proceed to
      One or more driver side power seat functions do not operate (for Standard Seat Type) A
      One or more driver side power seat functions do not operate (for Sports Seat Type) B
      One or more driver side power seat functions do not operate (for Luxury Seat Type) C
      One or more front passenger side power seat functions do not operate (for Luxury Seat Type) D
      All power seat functions do not operate E

    B

    CHECK POWER SEAT FUNCTION Click here

    C

    CHECK POWER SEAT FUNCTION Click here

    D

    CHECK POWER SEAT FUNCTION Click here

    E

    GO TO OTHER FLOW CHART (Front Power Seat does not Operate with Front Power Seat Switch) Click here

    A

  2. CHECK POWER SEAT FUNCTION


    1. Check that each function of the power seat operates normally by using the power seat switch Click here.

      Result
      Result Proceed to
      Slide, front vertical and lifter functions does not operate A
      Reclining function does not operate B
      Lumbar support adjustment function does not operate C

    B

    READ VALUE USING GTS (RECLINING) Click here

    C

    INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH (LUMBAR MOTOR) Click here

    A

  3. READ VALUE USING GTS


    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
      Front Vertical Down Front vertical switch signal (Downward) / ON or OFF

      ON: Front vertical switch (Downward) on

      OFF: Front vertical switch (Downward) off

      		 -
      Front Vertical Up Front vertical switch signal (Upward) / ON or OFF

      ON: Front vertical switch (Upward) on

      OFF: Front vertical switch (Upward) off

      		 -
      Lifter Switch Down Lifter switch signal (Downward) / ON or OFF

      ON: Lifter switch (Downward) on

      OFF: Lifter switch (Downward) off

      		 -
      Lifter Switch Up Lifter switch signal (Upward) / ON or OFF

      ON: Lifter switch (Upward) on

      OFF: Lifter switch (Upward) off

      		 -
      Slide Rear Sliding switch signal (Rearward) / ON or OFF

      ON: Sliding switch (Rearward) on

      OFF: Sliding switch (Rearward) off

      		 -
      Slide Front Sliding switch signal (Forward) / ON or OFF

      ON: Sliding switch (Forward) on

      OFF: Sliding switch (Forward) off

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

    NG

    REPLACE POWER SEAT SWITCH ASSEMBLY Click here

    OK

  4. INSPECT FRONT SEAT ADJUSTER ASSEMBLY RH


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Slide Motor])

      Check the operation of the slide motor.


      1. Disconnect the c6 front seat adjuster assembly RH connector.

      2. Check if the slide motor moves smoothly when the battery is connected to the slide motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward
    2. A000QIXE37
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Front Vertical Motor])

      Check the operation of the front vertical motor.


      1. Disconnect the c11 front seat adjuster assembly RH connector.

      2. Check if the front vertical motor moves smoothly when the battery is connected to the front vertical motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (UP)

        Battery negative (-) → 1 (DOWN)

        		 Upward

        Battery positive (+) → 1 (DOWN)

        Battery negative (-) → 4 (UP)

        		 Downward
    3. A000QIXE36
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Lifter Motor])

      Check the operation of the lifter motor.


      1. Disconnect the c13 front seat adjuster assembly RH connector.

      2. Check if the lifter motor moves smoothly when the battery is connected to the lifter motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (UP)

        Battery negative (-) → 4 (DOWN)

        		 Upward

        Battery positive (+) → 4 (DOWN)

        Battery negative (-) → 1 (UP)

        		 Downward

    NG

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (POWER SEAT SWITCH ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH)


    1. Disconnect the c15 and c17 power seat switch assembly connectors.

    2. Disconnect the c6, c11 and c13 front seat adjuster assembly RH connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c15-5 (SSRS) - c6-2 (O/P) Always Below 1 Ω
      c17-3 (SLD+) - c6-4 (FWD) Always Below 1 Ω
      c17-4 (SLD-) - c6-1 (BACK) Always Below 1 Ω
      c15-1 (SGND) - c6-3 (GND) Always Below 1 Ω
      c15-3 (SSFV) - c11-2 (O/P) Always Below 1 Ω
      c17-8 (FRV+) - c11-4 (UP) Always Below 1 Ω
      c17-5 (FRV-) - c11-1 (DOWN) Always Below 1 Ω
      c15-1 (SGND) - c11-3 (GND) Always Below 1 Ω
      c15-4 (SSRL) - c13-2 (O/P) Always Below 1 Ω
      d15-10 (LFT+) - c13-1 (UP) Always Below 1 Ω
      d15-12 (LFT-) - c13-4 (DOWN) Always Below 1 Ω
      c15-1 (SGND) - c13-3 (GND) Always Below 1 Ω
      c15-5 (SSRS) - Body ground Always 10 kΩ or higher
      c17-3 (SLD+) - Body ground Always 10 kΩ or higher
      c17-4 (SLD-) - Body ground Always 10 kΩ or higher
      c15-1 (SGND) - Body ground Always 10 kΩ or higher
      c15-3 (SSFV) - Body ground Always 10 kΩ or higher
      c17-8 (FRV+) - Body ground Always 10 kΩ or higher
      c17-5 (FRV-) - Body ground Always 10 kΩ or higher
      c15-4 (SSRL) - Body ground Always 10 kΩ or higher
      c17-10 (LFT+) - Body ground Always 10 kΩ or higher
      c17-12 (LFT-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Click here

  7. READ VALUE USING GTS (RECLINING)


    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 signal (Rearward) / ON or OFF

      ON: Reclining switch (Rearward) on

      OFF: Reclining switch (Rearward) off

      		 -
      Reclining Front Reclining switch signal (Forward) / ON or OFF

      ON: Reclining switch (Forward) on

      OFF: Reclining switch (Forward) off

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

    NG

    REPLACE POWER SEAT SWITCH ASSEMBLY Click here

    OK

  8. INSPECT POWER SEAT RECLINING MOTOR ASSEMBLY


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Power Seat Reclining Motor Assembly)

      Check the operation of the reclining motor.


      1. Disconnect the c25 power seat reclining motor assembly connector.

      2. Check if the reclining motor moves smoothly when the battery is connected to the reclining motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward

    NG

    REPLACE POWER SEAT RECLINING MOTOR ASSEMBLY Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (POWER SEAT SWITCH ASSEMBLY - POWER SEAT RECLINING MOTOR ASSEMBLY)


    1. Disconnect the c15 and c17 power seat switch assembly connectors.

    2. Disconnect the c25 power seat reclining motor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c15-11 (SSRR) - c25-2 (O/P) Always Below 1 Ω
      c17-9 (RCL+) - c25-4 (FWD) Always Below 1 Ω
      c17-11 (RCL-) - c25-1 (BACK) Always Below 1 Ω
      c15-1 (SGND) - c25-3 (GND) Always Below 1 Ω
      c15-11 (SSRR) - Body ground Always 10 kΩ or higher
      c17-11 (RCL+) - Body ground Always 10 kΩ or higher
      c17-9 (RCL-) - Body ground Always 10 kΩ or higher
      c15-1 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POWER SEAT RECLINING MOTOR ASSEMBLY Click here

  11. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH (LUMBAR MOTOR)


    1. A000QIXE61
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly RH [Lumbar Motor])

      Check the operation of the lumbar motor.


      1. Disconnect the c26 lumbar support adjuster assembly RH connector.

      2. Check if the lumbar motor moves smoothly when the battery is connected to the lumbar motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1

        Battery negative (-) → 4

        		 Forward

        Battery positive (+) → 4

        Battery negative (-) → 1

        		 Backward

    NG

    REPLACE LUMBAR SUPPORT ADJUSTER ASSEMBLY RH (LUMBAR MOTOR) Click here

    OK

  12. INSPECT FRONT LUMBAR POWER SEAT SWITCH


    1. A000NI2E01
      Text in Illustration
      *a

      Component without harness connected

      (Front Lumbar Power Seat Switch)

      Remove the front lumbar power seat switch Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      2 (B) - 3 (H) Hold Below 1 Ω
      4 (E) - 5 (R) Off Below 1 Ω
      3 (H) - 4 (E) Off Below 1 Ω
      2 (B) - 5 (R) Release Below 1 Ω

    NG

    REPLACE FRONT LUMBAR POWER SEAT SWITCH Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (POWER SEAT SWITCH ASSEMBLY - FRONT LUMBAR POWER SEAT SWITCH)


    1. Disconnect the c17 power seat switch assembly connector.

    2. Disconnect the c14 front lumbar power seat switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c17-6 (+B2) - c14-2 (B) Always Below 1 Ω
      c17-1 (GND2) - c14-4 (E) Always Below 1 Ω
      c17-6 (+B2) - Body ground Always 10 kΩ or higher
      c17-1 (GND2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. CHECK HARNESS AND CONNECTOR (LUMBAR SUPPORT ADJUSTER ASSEMBLY RH - FRONT LUMBAR POWER SEAT SWITCH)


    1. Disconnect the c26 lumbar support adjuster assembly RH connector.

    2. Disconnect the c14 front lumbar power seat switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c26-4 - c14-5 (R) Always Below 1 Ω
      c26-1 - c14-3 (H) Always Below 1 Ω
      c26-4 - Body ground Always 10 kΩ or higher
      c26-1 - Body ground Always 10 kΩ or higher

    OK

    REPLACE POWER SEAT SWITCH ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. CHECK POWER SEAT FUNCTION


    1. Check that each function of the power seat operates normally by using the power seat switch Click here.

      Result
      Result Proceed to
      Slide, lifter, front vertical or cushion function does not operate A
      Reclining functions does not operate B
      Lumbar support adjustment or pelvis support function does not operate C
      Side support function does not operate D

    B

    PERFORM ACTIVE TEST USING GTS (SEAT RECLINING) Click here

    C

    PERFORM ACTIVE TEST USING GTS Click here

    D

    PERFORM ACTIVE TEST USING GTS (SIDE SUPPORT OPERATION) Click here

    A

  16. PERFORM ACTIVE TEST USING GTS


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Seat Slide Operation Seat sliding operation Front / OFF / Rear
      Lifter Operation Seat lifter operation Up / OFF / Down
      Front Vertical Operation Seat front vertical operation Up / OFF / Down
      Cushion Length Seat cushion operation Front / OFF / Rear
      Result
      Result Proceed to
      Slide, lifter, front vertical and cushion functions operate normally A
      Slide, lifter, front vertical or cushion function does not operate B

    B

    INSPECT FRONT SEAT ADJUSTER ASSEMBLY RH Click here

    A

  17. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-25 (SWS1) - c18-1 (SET) Always Below 1 Ω
      c2-23 (SWS2) - c18-4 (M) Always Below 1 Ω
      c2-16 (SWS3) - c18-3 (LR) Always Below 1 Ω
      c2-14 (SWS4) - c18-5 (LF) Always Below 1 Ω
      c3-18 (SWD1) - c18-12 (RUP) Always Below 1 Ω
      c3-19 (SWD2) - c18-13 (RDWN) Always Below 1 Ω
      c3-20 (SWD3) - c18-10 (LUP) Always Below 1 Ω
      c3-11 (SWD4) - c18-11 (LDWN) Always Below 1 Ω
      c3-21 (SWD5) - c18-14 (R5) Always Below 1 Ω
      c2-25 (SWS1) - Body ground Always 10 kΩ or higher
      c2-23 (SWS2) - Body ground Always 10 kΩ or higher
      c2-16 (SWS3) - Body ground Always 10 kΩ or higher
      c2-14 (SWS4) - Body ground Always 10 kΩ or higher
      c3-18 (SWD1) - Body ground Always 10 kΩ or higher
      c3-19 (SWD2) - Body ground Always 10 kΩ or higher
      c3-20 (SWD3) - Body ground Always 10 kΩ or higher
      c3-11 (SWD4) - Body ground Always 10 kΩ or higher
      c3-21 (SWD5) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  18. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  19. INSPECT FRONT SEAT ADJUSTER ASSEMBLY RH

    Tech Tips

    Check the motor operation of applicable function.


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Slide Motor])

      Check the operation of the slide motor.


      1. Disconnect the c6 front seat adjuster assembly RH connector.

      2. Check if the slide motor moves smoothly when the battery is connected to the slide motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward
    2. A000QIXE37
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Front Vertical Motor])

      Check the operation of the front vertical motor.


      1. Disconnect the c11 front seat adjuster assembly RH connector.

      2. Check if the front vertical motor moves smoothly when the battery is connected to the front vertical motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (UP)

        Battery negative (-) → 1 (DOWN)

        		 Upward

        Battery positive (+) → 1 (DOWN)

        Battery negative (-) → 4 (UP)

        		 Downward
    3. A000QIXE36
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Lifter Motor])

      Check the operation of the lifter motor.


      1. Disconnect the c13 front seat adjuster assembly RH connector.

      2. Check if the lifter motor moves smoothly when the battery is connected to the lifter motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (UP)

        Battery negative (-) → 4 (DOWN)

        		 Upward

        Battery positive (+) → 4 (DOWN)

        Battery negative (-) → 1 (UP)

        		 Downward
    4. A000QIXE40
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Cushion Motor])

      Check the operation of the cushion motor.


      1. Disconnect the c9 front seat adjuster assembly RH connector.

      2. Check if the cushion motor moves smoothly when the battery is connected to the cushion motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (FWD)

        Battery negative (-) → 4 (BACK)

        		 Forward

        Battery positive (+) → 4 (BACK)

        Battery negative (-) → 1 (FWD)

        		 Backward

    NG

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Click here

    OK

  20. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH)


    1. Disconnect the c2, c3 and c5 position control ECU assembly connectors.

    2. Disconnect the c6, c9, c11 and c13 front seat adjuster assembly RH connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-8 (SSRS) - c6-2 (O/P) Always Below 1 Ω
      c5-6 (SLD+) - c6-4 (FWD) Always Below 1 Ω
      c5-3 (SLD-) - c6-1 (BACK) Always Below 1 Ω
      c2-20 (SGND) - c6-3 (GND) Always Below 1 Ω
      c3-24 (SSFV) - c11-2 (O/P) Always Below 1 Ω
      c5-7 (FRV+) - c11-4 (UP) Always Below 1 Ω
      c5-4 (FRV-) - c11-1 (DOWN) Always Below 1 Ω
      c2-20 (SGND) - c11-3 (GND) Always Below 1 Ω
      c3-10 (SSRL) - c13-2 (O/P) Always Below 1 Ω
      c5-2 (LFT+) - c13-1 (UP) Always Below 1 Ω
      c5-9 (LFT-) - c13-4 (DOWN) Always Below 1 Ω
      c2-20 (SGND) - c13-3 (GND) Always Below 1 Ω
      c3-3 (SSRC) - c9-2 (VCC) Always Below 1 Ω
      c3-6 (C+) - c9-1 (FWD) Always Below 1 Ω
      c2-4 (C-) - c9-4 (BACK) Always Below 1 Ω
      c2-20 (SGND) - c9-3 (GND) Always Below 1 Ω
      c3-8 (SSRS) - Body ground Always 10 kΩ or higher
      c5-6 (SLD+) - Body ground Always 10 kΩ or higher
      c5-3 (SLD-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher
      c3-24 (SSFV) - Body ground Always 10 kΩ or higher
      c5-7 (FRV+) - Body ground Always 10 kΩ or higher
      c5-4 (FRV-) - Body ground Always 10 kΩ or higher
      c3-10 (SSRL) - Body ground Always 10 kΩ or higher
      c5-2 (LFT+) - Body ground Always 10 kΩ or higher
      c5-9 (LFT-) - Body ground Always 10 kΩ or higher
      c3-3 (SSRL) - Body ground Always 10 kΩ or higher
      c3-6 (C+) - Body ground Always 10 kΩ or higher
      c2-4 (C-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  21. PERFORM ACTIVE TEST USING GTS (SEAT RECLINING)


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Seat Reclining Seat reclining operation Front / OFF / Rear
      Result
      Result Proceed to
      Reclining function operate normally A
      Reclining function does not operate B

    B

    INSPECT POWER SEAT RECLINING MOTOR ASSEMBLY Click here

    A

  22. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-25 (SWS1) - c18-1 (SET) Always Below 1 Ω
      c3-20 (SWD3) - c18-10 (LUP) Always Below 1 Ω
      c3-11 (SWD4) - c18-11 (LDWN) Always Below 1 Ω
      c2-25 (SWS1) - Body ground Always 10 kΩ or higher
      c3-20 (SWD3) - Body ground Always 10 kΩ or higher
      c3-11 (SWD4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  23. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  24. INSPECT POWER SEAT RECLINING MOTOR ASSEMBLY


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Power Seat Reclining Motor Assembly)

      Check the operation of the reclining motor.


      1. Disconnect the c25 power seat reclining motor assembly connector.

      2. Check if the reclining motor moves smoothly when the battery is connected to the reclining motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward

    NG

    REPLACE POWER SEAT RECLINING MOTOR ASSEMBLY Click here

    OK

  25. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT RECLINING MOTOR ASSEMBLY)


    1. Disconnect the c2, c3 and c5 position control ECU assembly connectors.

    2. Disconnect the c25 power seat reclining motor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-14 (SSRR) - c25-2 (O/P) Always Below 1 Ω
      c5-8 (RCL+) - c25-4 (FWD) Always Below 1 Ω
      c5-10 (RCL-) - c25-1 (BACK) Always Below 1 Ω
      c2-20 (SGND) - c25-3 (GND) Always Below 1 Ω
      c3-14 (SSRR) - Body ground Always 10 kΩ or higher
      c5-8 (RCL+) - Body ground Always 10 kΩ or higher
      c5-10 (RCL-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  26. PERFORM ACTIVE TEST USING GTS


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Lumbar Slide Seat lumbar operation Front / OFF / Rear
      Pelvis Support Operation Seat pelvis operation Front / OFF / Rear
      Result
      Result Proceed to
      Lumbar support adjustment and pelvis functions operate normally A
      Lumbar support adjustment or pelvis function does not operate B

    B

    INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH Click here

    A

  27. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-16 (SWS3) - c18-3 (LR) Always Below 1 Ω
      c3-18 (SWD1) - c18-12 (RUP) Always Below 1 Ω
      c3-19 (SWD2) - c18-13 (RDWN) Always Below 1 Ω
      c3-20 (SWD3) - c18-10 (LUP) Always Below 1 Ω
      c3-11 (SWD4) - c18-11 (LDWN) Always Below 1 Ω
      c2-16 (SWS3) - Body ground Always 10 kΩ or higher
      c3-18 (SWD1) - Body ground Always 10 kΩ or higher
      c3-19 (SWD2) - Body ground Always 10 kΩ or higher
      c3-20 (SWD3) - Body ground Always 10 kΩ or higher
      c3-11 (SWD4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  28. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  29. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH

    Tech Tips

    Check the motor operation of applicable function.


    1. A000QIXE41
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly RH [Lumbar Motor])

      Check the operation of the lumbar motor.


      1. Disconnect the c26 lumbar support adjuster assembly RH connector.

      2. Check if the lumbar motor moves smoothly when the battery is connected to the lumbar motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (H)

        Battery negative (-) → 4 (R)

        		 Forward

        Battery positive (+) → 4 (R)

        Battery negative (-) → 1 (H)

        		 Backward
    2. A000QIXE56
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly RH [Pelvis Motor])

      Check the operation of the pelvis motor.


      1. Disconnect the c33 lumbar support adjuster assembly RH connector.

      2. Check if the pelvis motor moves smoothly when the battery is connected to the pelvis motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (PEL+)

        Battery negative (-) → 4 (PEL-)

        		 Forward

        Battery positive (+) → 4 (PEL-)

        Battery negative (-) → 1 (PEL+)

        		 Backward

    NG

    REPLACE LUMBAR SUPPORT ADJUSTER ASSEMBLY RH Click here

    OK

  30. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - LUMBAR SUPPORT ADJUSTER ASSEMBLY RH)


    1. Disconnect the c2, c3 and c4 position control ECU assembly connectors.

    2. Disconnect the c26 and c33 lumbar support adjuster assembly RH connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-13 (SSLB) - c26-2 (VCC) Always Below 1 Ω
      c3-5 (L+) - c26-1 (H) Always Below 1 Ω
      c2-3 (L-) - c26-4 (R) Always Below 1 Ω
      c2-20 (SGND) - c26-3 (GND) Always Below 1 Ω
      c3-15 (SSPL) - c33-2 (SPEL) Always Below 1 Ω
      c4-4 (PEL+) - c33-1 (PEL+) Always Below 1 Ω
      c4-2 (PEL-) - c33-4 (PEL-) Always Below 1 Ω
      c2-20 (SGND) - c33-3 (PELE) Always Below 1 Ω
      c3-13 (SSLB) - Body ground Always 10 kΩ or higher
      c3-5 (L+) - Body ground Always 10 kΩ or higher
      c2-3 (L-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher
      c3-15 (SSPL) - Body ground Always 10 kΩ or higher
      c4-4 (PEL+) - Body ground Always 10 kΩ or higher
      c4-2 (PEL-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  31. PERFORM ACTIVE TEST USING GTS (SIDE SUPPORT OPERATION)


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Side Support Operation Seat side support operation Open / OFF / Close
      Result
      Result Proceed to
      Side support function operate normally A
      Side support function does not operate B

    B

    INSPECT FRONT SEAT BACK SUPPORT RH Click here

    A

  32. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-25 (SWS1) - c18-1 (SET) Always Below 1 Ω
      c2-23 (SWS2) - c18-4 (M) Always Below 1 Ω
      c3-21 (SWD5) - c18-14 (R5) Always Below 1 Ω
      c2-25 (SWS1) - Body ground Always 10 kΩ or higher
      c2-23 (SWS2) - Body ground Always 10 kΩ or higher
      c3-21 (SWD5) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  33. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  34. INSPECT FRONT SEAT BACK SUPPORT RH


    1. A000QIXE31
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Back Support RH [Side Support Motor])

      Check the operation of the side support motor.


      1. Disconnect the c28 front seat back support RH connector.

      2. Check if the side support motor moves smoothly when the battery is connected to the side support motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (ISR+)

        Battery negative (-) → 1 (ISR-)

        		 Paddle Open

        Battery positive (+) → 1 (ISR-)

        Battery negative (-) → 4 (ISR+)

        		 Paddle Close

    NG

    REPLACE FRONT SEAT BACK SUPPORT RH Click here

    OK

  35. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT BACK SUPPORT RH)


    1. Disconnect the c2, c3 and c4 position control ECU connectors.

    2. Disconnect the c28 front seat back support RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-16 (SSIR) - c28-2 (SISR) Always Below 1 Ω
      c4-3 (ISR+) - c28-4 (ISR+) Always Below 1 Ω
      c4-6 (ISR-) - c28-1 (ISR-) Always Below 1 Ω
      c2-20 (SGND) - c28-3 (ISRE) Always Below 1 Ω
      c3-16 (SSIR) - Body ground Always 10 kΩ or higher
      c4-3 (ISR+) - Body ground Always 10 kΩ or higher
      c4-6 (ISR-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  36. CHECK POWER SEAT FUNCTION


    1. Check that each function of the power seat operates normally by using the power seat switch Click here.

      Result
      Result Proceed to
      Sliding, front vertical, lifter or cushion function does not operate A
      Reclining functions does not operate B
      Lumbar or pelvis function does not operate C
      Side support function does not operate D
      Front seat back adjuster function does not operate E

    B

    PERFORM ACTIVE TEST USING GTS (SEAT RECLINING) Click here

    C

    PERFORM ACTIVE TEST USING GTS Click here

    D

    PERFORM ACTIVE TEST USING GTS (SIDE SUPPORT OPERATION) Click here

    E

    PERFORM ACTIVE TEST USING GTS (REAR SEAT LUMBAR ADJUSTMENT) Click here

    A

  37. PERFORM ACTIVE TEST USING GTS


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Seat Slide Operation Seat sliding operation Front / OFF / Rear
      Front Vertical Operation Seat front vertical operation Up / OFF / Down
      Lifter Operation Seat lifter operation Up / OFF / Down
      Cushion Length Seat cushion operation Front / OFF / Rear
      Result
      Result Proceed to
      Sliding, front vertical, lifter and cushion functions operate normally A
      Sliding, front vertical, lifter or cushion function does not operate B

    B

    INSPECT FRONT SEAT ADJUSTER ASSEMBLY RH Click here

    A

  38. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-25 (SWS1) - c18-1 (SET) Always Below 1 Ω
      c2-23 (SWS2) - c18-4 (M) Always Below 1 Ω
      c2-14 (SWS4) - c18-5 (LF) Always Below 1 Ω
      c3-18 (SWD1) - c18-12 (RUP) Always Below 1 Ω
      c3-19 (SWD2) - c18-13 (RDWN) Always Below 1 Ω
      c3-20 (SWD3) - c18-10 (LUP) Always Below 1 Ω
      c3-11 (SWD4) - c18-11 (LDWN) Always Below 1 Ω
      c2-25 (SWS1) - Body ground Always 10 kΩ or higher
      c2-23 (SWS2) - Body ground Always 10 kΩ or higher
      c2-14 (SWS4) - Body ground Always 10 kΩ or higher
      c3-18 (SWD1) - Body ground Always 10 kΩ or higher
      c3-19 (SWD2) - Body ground Always 10 kΩ or higher
      c3-20 (SWD3) - Body ground Always 10 kΩ or higher
      c3-11 (SWD4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  39. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  40. INSPECT FRONT SEAT ADJUSTER ASSEMBLY RH

    Tech Tips

    Check the motor operation of applicable function.


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Slide Motor])

      Check the operation of the slide motor.


      1. Disconnect the c6 front seat adjuster assembly RH connector.

      2. Check if the slide motor moves smoothly when the battery is connected to the slide motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward
    2. A000QIXE37
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Front Vertical Motor])

      Check the operation of the front vertical motor.


      1. Disconnect the c11 front seat adjuster assembly RH connector.

      2. Check if the front vertical motor moves smoothly when the battery is connected to the front vertical motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (UP)

        Battery negative (-) → 1 (DOWN)

        		 Upward

        Battery positive (+) → 1 (DOWN)

        Battery negative (-) → 4 (UP)

        		 Downward
    3. A000QIXE36
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Lifter Motor])

      Check the operation of the lifter motor.


      1. Disconnect the c13 front seat adjuster assembly RH connector.

      2. Check if the lifter motor moves smoothly when the battery is connected to the lifter motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (UP)

        Battery negative (-) → 4 (DOWN)

        		 Upward

        Battery positive (+) → 4 (DOWN)

        Battery negative (-) → 1 (UP)

        		 Downward
    4. A000QIXE40
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly RH [Cushion Motor])

      Check the operation of the cushion motor.


      1. Disconnect the c9 front seat adjuster assembly RH connector.

      2. Check if the cushion motor moves smoothly when the battery is connected to the cushion motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (FWD)

        Battery negative (-) → 4 (BACK)

        		 Forward

        Battery positive (+) → 4 (BACK)

        Battery negative (-) → 1 (FWD)

        		 Backward

    NG

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Click here

    OK

  41. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY RH)


    1. Disconnect the c2, c3 and c5 position control ECU assembly connectors.

    2. Disconnect the c6, c9, c11 and c13 front seat adjuster assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-8 (SSRS) - c6-2 (O/P) Always Below 1 Ω
      c5-6 (SLD+) - c6-4 (FWD) Always Below 1 Ω
      c5-3 (SLD-) - c6-1 (BACK) Always Below 1 Ω
      c2-20 (SGND) - c6-3 (GND) Always Below 1 Ω
      c3-24 (SSFV) - c11-2 (O/P) Always Below 1 Ω
      c5-7 (FRV+) - c11-4 (UP) Always Below 1 Ω
      c5-4 (FRV-) - c11-1 (DOWN) Always Below 1 Ω
      c2-20 (SGND) - c11-3 (GND) Always Below 1 Ω
      c3-10 (SSRL) - c13-2 (O/P) Always Below 1 Ω
      c5-2 (LFT+) - c13-1 (UP) Always Below 1 Ω
      c5-9 (LFT-) - c13-4 (DOWN) Always Below 1 Ω
      c2-20 (SGND) - c13-3 (GND) Always Below 1 Ω
      c3-3 (SSRC) - c9-2 (VCC) Always Below 1 Ω
      c3-6 (C+) - c9-1 (FWD) Always Below 1 Ω
      c2-4 (C-) - c9-4 (BACK) Always Below 1 Ω
      c2-20 (SGND) - c9-3 (GND) Always Below 1 Ω
      c3-8 (SSRS) - Body ground Always 10 kΩ or higher
      c5-6 (SLD+) - Body ground Always 10 kΩ or higher
      c5-3 (SLD-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher
      c3-24 (SSFV) - Body ground Always 10 kΩ or higher
      c5-7 (FRV+) - Body ground Always 10 kΩ or higher
      c5-4 (FRV-) - Body ground Always 10 kΩ or higher
      c3-10 (SSRL) - Body ground Always 10 kΩ or higher
      c5-2 (LFT+) - Body ground Always 10 kΩ or higher
      c5-9 (LFT-) - Body ground Always 10 kΩ or higher
      c3-3 (SSRC) - Body ground Always 10 kΩ or higher
      c3-6 (C+) - Body ground Always 10 kΩ or higher
      c2-4 (C-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  42. PERFORM ACTIVE TEST USING GTS (SEAT RECLINING)


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Seat Reclining Seat reclining operation Front / OFF / Rear
      Result
      Result Proceed to
      Reclining function operate normally A
      Reclining function does not operate B

    B

    INSPECT POWER SEAT RECLINING MOTOR ASSEMBLY Click here

    A

  43. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-25 (SWS1) - c18-1 (SET) Always Below 1 Ω
      c3-20 (SWD3) - c18-10 (LUP) Always Below 1 Ω
      c3-11 (SWD4) - c18-11 (LDWN) Always Below 1 Ω
      c2-25 (SWS1) - Body ground Always 10 kΩ or higher
      c3-20 (SWD3) - Body ground Always 10 kΩ or higher
      c3-11 (SWD4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  44. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  45. INSPECT POWER SEAT RECLINING MOTOR ASSEMBLY


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Power Seat Reclining Motor Assembly)

      Check the operation of the reclining motor.


      1. Disconnect the c25 power seat reclining motor assembly connector.

      2. Check if the reclining motor moves smoothly when the battery is connected to the reclining motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward

    NG

    REPLACE POWER SEAT RECLINING MOTOR ASSEMBLY Click here

    OK

  46. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT RECLINING MOTOR ASSEMBLY)


    1. Disconnect the c2, c3 and c5 position control ECU assembly connectors.

    2. Disconnect the c25 power seat reclining motor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-14 (SSRR) - c25-2 (O/P) Always Below 1 Ω
      c5-8 (RCL+) - c25-4 (FWD) Always Below 1 Ω
      c5-10 (RCL-) - c25-1 (BACK) Always Below 1 Ω
      c2-20 (SGND) - c25-3 (GND) Always Below 1 Ω
      c3-14 (SSRR) - Body ground Always 10 kΩ or higher
      c5-8 (RCL+) - Body ground Always 10 kΩ or higher
      c5-10 (RCL-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  47. PERFORM ACTIVE TEST USING GTS


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Lumbar Slide Seat lumbar operation Up / OFF / Down
      Pelvis Support Operation Seat pelvis operation Up / OFF / Down
      Result
      Result Proceed to
      Lumbar support adjustment and pelvis functions operate normally A
      Lumbar support adjustment or pelvis function does not operate B

    B

    INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH Click here

    A

  48. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-16 (SWS3) - c18-3 (LR) Always Below 1 Ω
      c3-18 (SWD1) - c18-12 (RUP) Always Below 1 Ω
      c3-19 (SWD2) - c18-13 (RDWN) Always Below 1 Ω
      c3-20 (SWD3) - c18-10 (LUP) Always Below 1 Ω
      c3-11 (SWD4) - c18-11 (LDWN) Always Below 1 Ω
      c2-16 (SWS3) - Body ground Always 10 kΩ or higher
      c3-18 (SWD1) - Body ground Always 10 kΩ or higher
      c3-19 (SWD2) - Body ground Always 10 kΩ or higher
      c3-20 (SWD3) - Body ground Always 10 kΩ or higher
      c3-11 (SWD4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  49. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  50. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH

    Tech Tips

    Check the motor operation of applicable function.


    1. A000QIXE39
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly RH [Lumbar Motor])

      Check the operation of the lumbar motor.


      1. Disconnect the c26 lumbar support adjuster assembly RH connector.

      2. Check if the lumbar motor moves smoothly when the battery is connected to the lumbar motor connector terminals.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → 1 (H)

        Battery negative (-) → 4 (R)

        		 Forward

        Battery positive (+) → 4 (R)

        Battery negative (-) → 1 (H)

        		 Backward
    2. A000QIXE56
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly RH [Pelvis Motor])

      Check the operation of the pelvis motor.


      1. Disconnect the c33 lumbar support adjuster assembly RH connector.

      2. Check if the pelvis motor moves smoothly when the battery is connected to the pelvis motor connector terminals.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → 1 (PEL+)

        Battery negative (-) → 4 (PEL-)

        		 Forward

        Battery positive (+) → 4 (PEL-)

        Battery negative (-) → 1 (PEL+)

        		 Backward

    NG

    REPLACE LUMBAR SUPPORT ADJUSTER ASSEMBLY RH Click here

    OK

  51. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - LUMBAR SUPPORT ADJUSTER ASSEMBLY RH)


    1. Disconnect the c2, c3 and c4 position control ECU assembly connectors.

    2. Disconnect the c26 and c33 lumbar support adjuster assembly RH connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-13 (SSLB) - c26-2 (VCC) Always Below 1 Ω
      c3-5 (L+) - c26-1 (H) Always Below 1 Ω
      c2-3 (L-) - c26-4 (R) Always Below 1 Ω
      c2-20 (SGND) - c26-3 (GND) Always Below 1 Ω
      c3-15 (SSPL) - c33-2 (SPEL) Always Below 1 Ω
      c4-4 (PEL+) - c33-1 (PEL+) Always Below 1 Ω
      c4-2 (PEL-) - c33-4 (PEL-) Always Below 1 Ω
      c2-20 (SGND) - c33-3 (PELE) Always Below 1 Ω
      c3-13 (SSLB) - Body ground Always 10 kΩ or higher
      c3-5 (L+) - Body ground Always 10 kΩ or higher
      c2-3 (L-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher
      c3-15 (SSPL) - Body ground Always 10 kΩ or higher
      c4-4 (PEL+) - Body ground Always 10 kΩ or higher
      c4-2 (PEL-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  52. PERFORM ACTIVE TEST USING GTS (SIDE SUPPORT OPERATION)


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Side Support Operation Seat side support operation Open / OFF / Close
      Result
      Result Proceed to
      Side support function operate normally A
      Side support function does not operate B

    B

    INSPECT FRONT SEAT BACK SUPPORT RH Click here

    A

  53. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-25 (SWS1) - c18-1 (SET) Always Below 1 Ω
      c2-23 (SWS2) - c18-4 (M) Always Below 1 Ω
      c3-21 (SWD5) - c18-14 (R5) Always Below 1 Ω
      c2-25 (SWS1) - Body ground Always 10 kΩ or higher
      c2-23 (SWS2) - Body ground Always 10 kΩ or higher
      c3-21 (SWD5) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  54. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  55. INSPECT FRONT SEAT BACK SUPPORT RH


    1. A000QIXE31
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Back Support RH [Side Support Motor])

      Check the operation of the side support motor.


      1. Disconnect the c28 front seat back support RH connector.

      2. Check if the side support motor moves smoothly when the battery is connected to the side support motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (ISR+)

        Battery negative (-) → 1 (ISR-)

        		 Paddle Open

        Battery positive (+) → 1 (ISR-)

        Battery negative (-) → 4 (ISR+)

        		 Paddle Close

    NG

    REPLACE FRONT SEAT BACK SUPPORT RH Click here

    OK

  56. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT BACK SUPPORT RH)


    1. Disconnect the c2, c3 and c4 position control ECU assembly connectors.

    2. Disconnect the c28 front seat back support RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-16 (SSIR) - c28-2 (SISR) Always Below 1 Ω
      c4-3 (ISR+) - c28-4 (ISR+) Always Below 1 Ω
      c4-6 (ISR-) - c28-1 (ISR-) Always Below 1 Ω
      c2-20 (SGND) - c28-3 (ISRE) Always Below 1 Ω
      c3-16 (SSIR) - Body ground Always 10 kΩ or higher
      c4-3 (ISR+) - Body ground Always 10 kΩ or higher
      c4-6 (ISR-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  57. PERFORM ACTIVE TEST USING GTS (REAR SEAT LUMBAR ADJUSTMENT)


    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 / Active Test.

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

      Driver Seat
      Tester Display Test Part Control Range
      Rear Seat Lumbar Adjustment Seat back support adjustment operation Up / OFF / Down
      Result
      Result Proceed to
      Front seat back adjustment function operate normally A
      Front seat back adjustment function does not operate B

    B

    INSPECT FRONT SEAT BACK ADJUSTER ASSEMBLY Click here

    A

  58. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the c2 and c3 position control ECU assembly connectors.

    2. Disconnect the c18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c2-14 (SWS4) - c18-5 (LF) Always Below 1 Ω
      c3-18 (SWD1) - c18-12 (RUP) Always Below 1 Ω
      c3-19 (SWD2) - c18-13 (RDWN) Always Below 1 Ω
      c2-14 (SWS4) - Body ground Always 10 kΩ or higher
      c3-18 (SWD1) - Body ground Always 10 kΩ or higher
      c3-19 (SWD2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  59. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  60. INSPECT FRONT SEAT BACK ADJUSTER ASSEMBLY


    1. A000QIXE30
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Back Adjuster Assembly [Front Seat Back Adjuster Motor])

      Check the operation of the front seat back adjuster motor.


      1. Disconnect the c31 front seat back adjuster assembly connector.

      2. Check if the front seat back adjuster motor moves smoothly when the battery is connected to the front seat back adjuster motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (MR+)

        Battery negative (-) → 1 (MR-)

        		 Forward

        Battery positive (+) → 1 (MR-)

        Battery negative (-) → 4 (MR+)

        		 Backward

    NG

    REPLACE FRONT SEAT BACK ADJUSTER ASSEMBLY Click here

    OK

  61. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT BACK ADJUSTER MOTOR)


    1. Disconnect the c2, c3 and c4 position control ECU assembly connectors.

    2. Disconnect the c31 front seat back adjuster assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c3-9 (SSMR) - c31-2 (SMR) Always Below 1 Ω
      c4-1 (MR+) - c31-4 (MR+) Always Below 1 Ω
      c4-5 (MR-) - c31-1 (MR-) Always Below 1 Ω
      c2-20 (SGND) - c31-3 (MRE) Always Below 1 Ω
      c3-9 (SSMR) - Body ground Always 10 kΩ or higher
      c4-1 (MR+) - Body ground Always 10 kΩ or higher
      c4-5 (MR-) - Body ground Always 10 kΩ or higher
      c2-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  62. CHECK POWER SEAT FUNCTION


    1. Check that each function of the power seat operates normally by using the power seat switch Click here.

      Result
      Result Proceed to
      Slide, front vertical, lifter, cushion*1 or ottoman*2 functions does not operate A
      Reclining functions does not operate B
      Lumbar support adjustment or pelvis function does not operate C
      Side support adjustment or front seat back adjustment function does not operate D

      • *1: except Ottoman

      • *2: for Ottoman


    B

    PERFORM ACTIVE TEST USING GTS (SEAT RECLINING) Click here

    C

    PERFORM ACTIVE TEST USING GTS Click here

    D

    PERFORM ACTIVE TEST USING GTS Click here

    A

  63. PERFORM ACTIVE TEST USING GTS


    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 / Active Test.

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

      Passenger Seat
      Tester Display Test Part Control Range
      Seat Slide Operation Seat sliding operation Front / OFF / Rear
      Lifter Operation Seat lifter operation Up / OFF / Down
      Front Vertical Operation Seat front vertical operation Up / OFF / Down
      Cushion Length*1 Seat cushion operation Front / OFF / Rear
      Ottoman*2 Seat ottoman operation Up / OFF / Down

      • *1: except Ottoman

      • *2: for Ottoman

      Result
      Result Proceed to
      Slide, front vertical, lifter cushion and ottoman functions operate normally A
      Slide, front vertical, lifter cushion or ottoman function does not operate B

    B

    INSPECT FRONT SEAT ADJUSTER ASSEMBLY LH Click here

    A

  64. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d5-25 (SWS1) - d18-1 (B) Always Below 1 Ω
      d5-23 (SWS2) - d18-4 (E) Always Below 1 Ω
      d5-14 (SWS4) - d18-5 (2) Always Below 1 Ω
      d4-18 (SWD1) - d18-12 (B) Always Below 1 Ω
      d4-19 (SWD2) - d18-13 (CLS) Always Below 1 Ω
      d4-20 (SWD3) - d18-10 (SPR) Always Below 1 Ω
      d4-11 (SWD4) - d18-11 (IG) Always Below 1 Ω
      d5-25 (SWS1) - Body ground Always 10 kΩ or higher
      d5-23 (SWS2) - Body ground Always 10 kΩ or higher
      d5-14 (SWS4) - Body ground Always 10 kΩ or higher
      d4-18 (SWD1) - Body ground Always 10 kΩ or higher
      d4-19 (SWD2) - Body ground Always 10 kΩ or higher
      d4-20 (SWD3) - Body ground Always 10 kΩ or higher
      d4-11 (SWD4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  65. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT POWER SEAT SWITCH LH)


    1. Disconnect the d5 position control ECU assembly connector.

    2. Disconnect the d27 front power seat switch LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d5-24 (SLDF) - d27-4 (SLDF) Always Below 1 Ω
      d5-26 (SLDR) - d27-5 (SLDR) Always Below 1 Ω
      d5-20 (SGND) - d27-3 (B) Always Below 1 Ω
      d5-24 (SLDF) - Body ground Always 10 kΩ or higher
      d5-26 (SLDR) - Body ground Always 10 kΩ or higher
      d5-20 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  66. INSPECT FRONT POWER SEAT SWITCH ASSEMBLY LH


    1. A000QD1E03
      Text in Illustration
      *a

      Component without harness connected

      (Front Power Seat Switch Assembly LH)

      Remove the front power seat switch assembly LH Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      4 (SLDF) - 3 (B) Slide switch front on Below 1 Ω
      5 (SLDR) - 3 (B) Slide switch rear on Below 1 Ω

    NG

    REPLACE FRONT POWER SEAT SWITCH ASSEMBLY LH Click here

    OK

  67. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  68. INSPECT FRONT SEAT ADJUSTER ASSEMBLY LH

    Tech Tips

    Check the motor operation of applicable function.


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly LH [Slide Motor])

      Check the operation of the slide motor.


      1. Disconnect the d7 front seat adjuster assembly LH connector.

      2. Check if the slide motor moves smoothly when the battery is connected to the slide motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward
    2. A000QIXE37
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly LH [Front Vertical Motor])

      Check the operation of the front vertical motor.


      1. Disconnect the d10 front seat adjuster LH assembly connector.

      2. Check if the front vertical motor moves smoothly when the battery is connected to the front vertical motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (UP)

        Battery negative (-) → 1 (DOWN)

        		 Upward

        Battery positive (+) → 1 (DOWN)

        Battery negative (-) → 4 (UP)

        		 Downward
    3. A000QIXE36
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly LH [Lifter Motor])

      Check the operation of the lifter motor.


      1. Disconnect the d12 front seat adjuster assembly LH connector.

      2. Check if the lifter motor moves smoothly when the battery is connected to the lifter motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (UP)

        Battery negative (-) → 4 (DOWN)

        		 Upward

        Battery positive (+) → 4 (DOWN)

        Battery negative (-) → 1 (UP)

        		 Downward
    4. A000QIXE35
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly LH [Cushion Motor])

      Check the operation of the cushion motor (except Ottoman).


      1. Disconnect the d9 front seat adjuster assembly LH connector.

      2. Check if the cushion motor moves smoothly when the battery is connected to the cushion motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (SI)

        Battery negative (-) → 4 (SO)

        		 Forward

        Battery positive (+) → 4 (SO)

        Battery negative (-) → 1 (SI)

        		 Backward
    5. A000QIXE35
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Adjuster Assembly LH [Ottoman Motor])

      Check the operation of the ottoman motor (for Ottoman).


      1. Disconnect the d35 front seat adjuster assembly LH connector.

      2. Check if the ottoman motor moves smoothly when the battery is connected to the ottoman motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (SI)

        Battery negative (-) → 4 (SO)

        		 Forward

        Battery positive (+) → 4 (SO)

        Battery negative (-) → 1 (SI)

        		 Backward

    NG

    REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH Click here

    OK

  69. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT ADJUSTER ASSEMBLY LH)


    • *1: except Ottoman

    • *2: for Ottoman


    1. Disconnect the d2, d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d7, d9*1, d10, d12 and d35*2 front seat adjuster assembly LH connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d4-8 (SSRS) - d7-2 (VCC) Always Below 1 Ω
      d2-6 (SLD+) - d7-4 (FWD) Always Below 1 Ω
      d2-3 (SLD-) - d7-1 (BACK) Always Below 1 Ω
      d5-20 (SGND) - d7-3 (GND) Always Below 1 Ω
      d4-24 (SSFV) - d10-2 (VCC) Always Below 1 Ω
      d2-7 (FRV+) - d10-4 (UP) Always Below 1 Ω
      d2-4 (FRV-) - d10-1 (DOWN) Always Below 1 Ω
      d5-20 (SGND) - d10-3 (GND) Always Below 1 Ω
      d4-10 (SSRL) - d12-2 (VCC) Always Below 1 Ω
      d2-2 (LFT+) - d12-1 (UP) Always Below 1 Ω
      d2-9 (LFT-) - d12-4 (DOWN) Always Below 1 Ω
      d5-20 (SGND) - d12-3 (GND) Always Below 1 Ω
      d4-3 (SSRC) - d9-2 (P)*1 Always Below 1 Ω
      d4-6 (C+) - d9-1 (SI)*1 Always Below 1 Ω
      d5-4 (C-) - d9-4 (SO)*1 Always Below 1 Ω
      d5-20 (SGND) - d9-3 (GND)*1 Always Below 1 Ω
      d4-3 (SSRC) - d35-2 (P)*2 Always Below 1 Ω
      d4-6 (C+) - d35-1 (SI)*2 Always Below 1 Ω
      d5-4 (C-) - d35-4 (SO)*2 Always Below 1 Ω
      d5-20 (SGND) - d35-3 (GND)*2 Always Below 1 Ω
      d4-8 (SSRS) - Body ground Always 10 kΩ or higher
      d2-6 (SLD+) - Body ground Always 10 kΩ or higher
      d2-3 (SLD-) - Body ground Always 10 kΩ or higher
      d5-20 (SGND) - Body ground Always 10 kΩ or higher
      d4-24 (SSFV) - Body ground Always 10 kΩ or higher
      d2-7 (FRV+) - Body ground Always 10 kΩ or higher
      d2-4 (FRV-) - Body ground Always 10 kΩ or higher
      d4-10 (SSRL) - Body ground Always 10 kΩ or higher
      d2-2 (LFT+) - Body ground Always 10 kΩ or higher
      d2-9 (LFT-) - Body ground Always 10 kΩ or higher
      d4-3 (SSRC) - Body ground Always 10 kΩ or higher
      d4-6 (C+) - Body ground Always 10 kΩ or higher
      d5-4 (C-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  70. PERFORM ACTIVE TEST USING GTS (SEAT RECLINING)


    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 / Active Test.

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

      Passenger Seat
      Tester Display Test Part Control Range
      Seat Reclining Seat reclining operation Front / OFF / Rear
      Result
      Result Proceed to
      Reclining function operate normally A
      Reclining function does not operate B

    B

    INSPECT POWER SEAT RECLINING MOTOR ASSEMBLY Click here

    A

  71. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d5-25 (SWS1) - d18-1 (B) Always Below 1 Ω
      d4-20 (SWD3) - d18-10 (SPR) Always Below 1 Ω
      d4-11 (SWD4) - d18-11 (IG) Always Below 1 Ω
      d5-25 (SWS1) - Body ground Always 10 kΩ or higher
      d4-20 (SWD3) - Body ground Always 10 kΩ or higher
      d4-11 (SWD4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  72. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT POWER SEAT SWITCH ASSEMBLY LH)


    1. Disconnect the d5 position control ECU assembly connector.

    2. Disconnect the d27 front power seat switch assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d5-17 (HRFS) - d27-2 (RCLF) Always Below 1 Ω
      d5-21 (HRRS) - d27-1 (RCLR) Always Below 1 Ω
      d5-20 (SGND) - d27-3 (B) Always Below 1 Ω
      d5-17 (HRFS) - Body ground Always 10 kΩ or higher
      d5-21 (HRRS) - Body ground Always 10 kΩ or higher
      d5-20 (SGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  73. INSPECT FRONT POWER SEAT SWITCH ASSEMBLY LH


    1. A000QD1E04
      Text in Illustration
      *a

      Component without harness connected

      (Front Power Seat Switch Assembly LH)

      Remove the front power seat switch assembly LH Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      2 (RCLF) - 3 (B) Reclining switch front on Below 1 Ω
      1 (RCLR) - 3 (B) Reclining switch rear on Below 1 Ω

    NG

    REPLACE FRONT POWER SEAT SWITCH ASSEMBLY LH Click here

    OK

  74. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  75. INSPECT POWER SEAT RECLINING MOTOR ASSEMBLY


    1. A000QIXE34
      Text in Illustration
      *a

      Component without harness connected

      (Power Seat Reclining Motor Assembly)

      Check the operation of the reclining motor.


      1. Disconnect the d25 power seat reclining motor assembly connector.

      2. Check if the reclining motor moves smoothly when the battery is connected to the reclining motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (FWD)

        Battery negative (-) → 1 (BACK)

        		 Forward

        Battery positive (+) → 1 (BACK)

        Battery negative (-) → 4 (FWD)

        		 Backward

    NG

    REPLACE POWER SEAT RECLINING MOTOR ASSEMBLY Click here

    OK

  76. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT MOTOR ASSEMBLY)


    1. Disconnect the d2, d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d25 power seat reclining motor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d4-14 (SSRR) - d25-2 (VCC) Always Below 1 Ω
      d2-8 (RCL+) - d25-4 (FWD) Always Below 1 Ω
      d2-10 (RCL-) - d25-1 (BACK) Always Below 1 Ω
      d5-20 (SGND) - c25-3 (GND) Always Below 1 Ω
      d4-14 (SSRR) - Body ground Always 10 kΩ or higher
      d2-8 (RCL+) - Body ground Always 10 kΩ or higher
      d2-10 (RCL-) - Body ground Always 10 kΩ or higher
      d5-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  77. PERFORM ACTIVE TEST USING GTS


    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 / Active Test.

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

      Passenger Seat
      Tester Display Test Part Control Range
      Lumbar Slide Seat lumbar operation Front / OFF / Rear
      Pelvis Support Operation Seat pelvis operation Front / OFF / Rear
      Result
      Result Proceed to
      Lumbar support adjustment and pelvis functions operate normally A
      Lumbar support adjustment or pelvis function does not operate B

    B

    INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY LH Click here

    A

  78. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d5-25 (SWS1) - d18-1 (B) Always Below 1 Ω
      d5-23 (SWS2) - d18-4 (E) Always Below 1 Ω
      d5-16 (SWS3) - d18-3 (1) Always Below 1 Ω
      d5-14 (SWS4) - d18-5 (2) Always Below 1 Ω
      d4-18 (SWD1) - d18-12 (B) Always Below 1 Ω
      d4-19 (SWD2) - d18-13 (CLS) Always Below 1 Ω
      d4-20 (SWD3) - d18-10 (SPR) Always Below 1 Ω
      d4-11 (SWD4) - d18-11 (IG) Always Below 1 Ω
      d4-21 (SWD5) - d18-14 (E) Always Below 1 Ω
      d5-25 (SWS1) - Body ground Always 10 kΩ or higher
      d5-23 (SWS2) - Body ground Always 10 kΩ or higher
      d5-16 (SWS3) - Body ground Always 10 kΩ or higher
      d5-14 (SWS4) - Body ground Always 10 kΩ or higher
      d4-18 (SWD1) - Body ground Always 10 kΩ or higher
      d4-19 (SWD2) - Body ground Always 10 kΩ or higher
      d4-20 (SWD3) - Body ground Always 10 kΩ or higher
      d4-11 (SWD4) - Body ground Always 10 kΩ or higher
      d4-21 (SWD5) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  79. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  80. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY LH


    1. A000QIXE42
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly LH [Lumbar Motor])

      Check the operation of the lumbar motor.


      1. Disconnect the d31 lumbar support adjuster assembly LH connector.

      2. Check if the lumbar motor moves smoothly when the battery is connected to the lumbar motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (H1)

        Battery negative (-) → 4 (R1)

        		 Forward

        Battery positive (+) → 4 (R1)

        Battery negative (-) → 1 (H1)

        		 Backward
    2. A000QIXE56
      Text in Illustration
      *a

      Component without harness connected

      (Lumbar Support Adjuster Assembly LH [Pelvis Motor])

      Check the operation of the pelvis motor.


      1. Disconnect the d28 lumbar support adjuster assembly LH connector.

      2. Check if the pelvis motor moves smoothly when the battery is connected to the pelvis motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 1 (PEL+)

        Battery negative (-) → 4 (PEL-)

        		 Forward

        Battery positive (+) → 4 (PEL-)

        Battery negative (-) → 1 (PEL+)

        		 Backward

    NG

    REPLACE LUMBAR SUPPORT ADJUSTER ASSEMBLY LH Click here

    OK

  81. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - LUMBAR SUPPORT ADJUSTER ASSEMBLY LH)


    1. Disconnect the d3, d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d28 and d31 lumbar support adjuster assembly LH connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d4-13 (SSLB) - d31-2 (VCC) Always Below 1 Ω
      d4-5 (L+) - d31-1 (H1) Always Below 1 Ω
      d5-3 (L-) - d31-4 (R1) Always Below 1 Ω
      d5-20 (SGND) - d31-3 (GND) Always Below 1 Ω
      d4-15 (SSPL) - d28-2 (SPEL) Always Below 1 Ω
      d3-4 (PEL+) - d28-1 (PEL+) Always Below 1 Ω
      d3-2 (PEL-) - d28-4 (PEL-) Always Below 1 Ω
      d5-20 (SGND) - d28-3 (PELG) Always Below 1 Ω
      d4-13 (SSLB) - Body ground Always 10 kΩ or higher
      d4-5 (L+) - Body ground Always 10 kΩ or higher
      d5-3 (L-) - Body ground Always 10 kΩ or higher
      d5-20 (SGND) - Body ground Always 10 kΩ or higher
      d4-15 (SSPL) - Body ground Always 10 kΩ or higher
      d3-4 (PEL+) - Body ground Always 10 kΩ or higher
      d3-2 (PEL-) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  82. PERFORM ACTIVE TEST USING GTS


    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 / Active Test.

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

      Passenger Seat
      Tester Display Test Part Control Range
      Side Support Operation Seat side support operation Open / OFF / Close
      Rear Seat Lumbar Adjustment Seat back adjustment operation Front / OFF / Rear
      Result
      Result Proceed to
      Side support and front seat back adjuster functions operate normally A
      Side support function does not operate B
      Front seat back adjuster function does not operate C

    B

    INSPECT FRONT SEAT BACK SUPPORT LH Click here

    C

    INSPECT FRONT SEAT BACK ADJUSTER ASSEMBLY Click here

    A

  83. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - POWER SEAT SWITCH ASSEMBLY)


    1. Disconnect the d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d18 power seat switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d5-25 (SWS1) - d18-1 (B) Always Below 1 Ω
      d5-23 (SWS2) - d18-4 (E) Always Below 1 Ω
      d5-16 (SWS3) - d18-3 (1) Always Below 1 Ω
      d5-14 (SWS4) - d18-5 (2) Always Below 1 Ω
      d4-18 (SWD1) - d18-12 (B) Always Below 1 Ω
      d4-19 (SWD2) - d18-13 (CLS) Always Below 1 Ω
      d4-20 (SWD3) - d18-10 (SPR) Always Below 1 Ω
      d4-11 (SWD4) - d18-11 (IG) Always Below 1 Ω
      d4-21 (SWD5) - d18-14 (E) Always Below 1 Ω
      d5-25 (SWS1) - Body ground Always 10 kΩ or higher
      d5-23 (SWS2) - Body ground Always 10 kΩ or higher
      d5-16 (SWS3) - Body ground Always 10 kΩ or higher
      d5-14 (SWS4) - Body ground Always 10 kΩ or higher
      d4-18 (SWD1) - Body ground Always 10 kΩ or higher
      d4-19 (SWD2) - Body ground Always 10 kΩ or higher
      d4-20 (SWD3) - Body ground Always 10 kΩ or higher
      d4-11 (SWD4) - Body ground Always 10 kΩ or higher
      d4-21 (SWD5) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  84. CHECK POWER SEAT SWITCH ASSEMBLY


    1. Temporarily replace the power seat switch assembly with a new or normally functioning one Click here.

    2. Check the front power seat control system Click here.

      OK
      Power seat operates normally

    OK

    END (POWER SEAT SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

  85. INSPECT FRONT SEAT BACK SUPPORT LH


    1. A000QIXE31
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Back Support LH [Side Support Motor])

      Check the operation of the side support motor.


      1. Disconnect the d30 front seat back support LH connector.

      2. Check if the side support motor moves smoothly when the battery is connected to the side support motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (ISR+)

        Battery negative (-) → 1 (ISR-)

        		 Paddle Open

        Battery positive (+) → 1 (ISR-)

        Battery negative (-) → 4 (ISR+)

        		 Paddle Close

    NG

    REPLACE FRONT SEAT BACK SUPPORT LH Click here

    OK

  86. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT BACK SUPPORT LH)


    1. Disconnect the d3, d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d30 front seat back support LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d4-16 (SSIR) - d30-2 (SISR) Always Below 1 Ω
      d3-3 (ISR+) - d30-4 (ISR+) Always Below 1 Ω
      d3-6 (ISR-) - d30-1 (ISR-) Always Below 1 Ω
      d5-20 (SGND) - d30-3 (ISRG) Always Below 1 Ω
      d4-16 (SSIR) - Body ground Always 10 kΩ or higher
      d3-3 (ISR+) - Body ground Always 10 kΩ or higher
      d3-6 (ISR-) - Body ground Always 10 kΩ or higher
      d5-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  87. INSPECT FRONT SEAT BACK ADJUSTER ASSEMBLY


    1. A000QIXE30
      Text in Illustration
      *a

      Component without harness connected

      (Front Seat Back Adjuster Assembly [Front Seat Back Adjuster Motor])

      Check the operation of the front seat back adjuster motor.


      1. Disconnect the d26 front seat back adjuster assembly connector.

      2. Check if the front seat back adjuster motor moves smoothly when the battery is connected to the front seat back adjuster motor connector terminals.

        OK
        Measurement Condition Operational Direction

        Battery positive (+) → 4 (MR+)

        Battery negative (-) → 1 (MR-)

        		 Forward

        Battery positive (+) → 1 (MR-)

        Battery negative (-) → 4 (MR+)

        		 Backward

    NG

    REPLACE FRONT SEAT BACK ADJUSTER ASSEMBLY Click here

    OK

  88. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU ASSEMBLY - FRONT SEAT BACK ADJUSTER ASSEMBLY)


    1. Disconnect the d3, d4 and d5 position control ECU assembly connectors.

    2. Disconnect the d26 front seat back adjuster assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      d4-9 (SSMR) - d26-2 (SMR) Always Below 1 Ω
      d3-1 (MR+) - d26-4 (MR+) Always Below 1 Ω
      d3-5 (MR-) - d26-1 (MR-) Always Below 1 Ω
      d5-20 (SGND) - d26-3 (MRG) Always Below 1 Ω
      d4-9 (SSMR) - Body ground Always 10 kΩ or higher
      d3-1 (MR+) - Body ground Always 10 kΩ or higher
      d3-5 (MR-) - Body ground Always 10 kΩ or higher
      d5-20 (SGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE POSITION CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR