FRONT POWER SEAT CONTROL SYSTEM (for Driver Side) Power Seat Power Easy Access System Function does not Operate

DESCRIPTION

When the engine switch is off or the shift lever is in P, the power seat slides rearward when the seat belt tongue plate is disengaged from the front seat inner belt assembly (for driver) (auto away function). Also the power seat slides forward when the seat belt tongue plate is engaged to the front seat inner belt assembly (for driver) with the engine switch on (ACC) or on (IG), or the shift lever in P.

WIRING DIAGRAM

A01CFKOE02

INSPECTION PROCEDURE

Note

The power seat power easy access system function can be customized. Make sure that this function is ON Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Use the intelligent tester to check if the CAN communication system is functioning normally Click here.

      OK
      CAN communication DTC is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. CHECK FRONT POWER SEAT OPERATION


    1. Check that each function of the power seat operates normally by using the position control ECU and switch assembly Click here.

      Result
      Result Proceed to
      Power seat functions operate normally A
      All power seat functions do not operate B
      One or more power seat motors do not operate C

    B

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

    C

    GO TO OTHER DIAGNOSIS PROCEDURE (One or more Power Seat Motors do not Operate) Click here

    A

  3. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / D-Seat / Data List.

    5. Read the Data List according to the display on the intelligent tester.

      D-Seat
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Driver Seat Buckle SW Status of the driver seatbelt / ON or OFF

      ON: Tongue plate is engaged

      OFF: Tongue plate is not engaged

      		 -
      OK
      "ON" and "OFF" appears on the screen according to driver seat belt condition as shown in the table.

    NG

    INSPECT FRONT SEAT INNER BELT ASSEMBLY (FOR DRIVER) Click here

    OK

  4. REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY


    1. Replace the position control ECU and switch assembly Click here.


    NEXT

  5. CHECK POWER SEAT POWER EASY ACCESS SYSTEM


    1. Check that the power seat power seat easy access system operates normally when engaging and disengaging the tongue plate of the seat belt with shift lever in P Click here.

      OK
      Power seat power easy access system is normal.

    NG

    REPLACE MAIN BODY ECU (PASSENGER SIDE JUNCTION BLOCK ASSEMBLY) Click here

    OK

    END (POSITION CONTROL ECU AND SWITCH ASSEMBLY WAS DEFECTIVE)

  6. INSPECT FRONT SEAT INNER BELT ASSEMBLY (FOR DRIVER)


    1. A01CDD1E13

      Remove the front seat inner belt assembly (for driver) Click here.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      W13-2 (E) - W13-3 (RDC) Tongue plate is engaged Below 1 Ω
      W13-2 (E) - W13-3 (RDC) Tongue plate is not engaged 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      V5-2 (E) - V5-3 (RDC) Tongue plate is engaged Below 1 Ω
      V5-2 (E) - V5-3 (RDC) Tongue plate is not engaged 10 kΩ or higher

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (FOR DRIVER) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY (FOR DRIVER))


    1. Disconnect the W17*1, V16*2 connector from the position control ECU and switch assembly.

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


      • *1: for LHD

      • *2: for RHD

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      W17-4 (DBCL) - W13-3 (RDC) Always Below 1 Ω
      W13-2 (E) - Body ground Always Below 1 Ω
      W17-4 (DBCL) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      V16-4 (DBCL) - V5-3 (RDC) Always Below 1 Ω
      V5-2 (E) - Body ground Always Below 1 Ω
      V16-4 (DBCL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY Click here