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EASY ACCESS BUCKLE SYSTEM Front Passenger Seat Easy Access Buckle Function does not Operate

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DTC Code DTC Name
  Front Passenger Seat Easy Access Buckle Function does not Operate
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DESCRIPTION

When the front passenger side door is opened, the position control ECU assembly receives a door open signal from the main body ECU (multiplex network body ECU) via the CAN communication line.

The No. 2 position control ECU assembly raises the front seat inner belt assembly based on the received signal. After the passenger sits in the front passenger seat, the No. 2 position control ECU assembly lowers the front seat inner belt assembly.

Figure 2. for RHD: B004TW3E05
Figure 1. for LHD:
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • The easy access buckle system uses the CAN communication system. First, confirm that there are no malfunction in the CAN communication system. Refer to How to Proceed with Troubleshooting.

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  • If DTC B264F is output, repair according to the procedure for B264F first.

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  • Perform the initialization procedure and stored memory will be reset.

  • Before inspecting parts for malfunctions, inspect the fuses and relays of related systems.

Tip:

After replacing the position control ECU assembly, seat assembly and parts (including removal and installation), initialize the position control ECU assembly.

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PROCEDURE


  1. Click here

    CHECK FRONT POWER SEAT CONTROL SYSTEM


    1. Operate the power seat switch and check that the head rest and pneumatic support function operate normally.

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      OK
      The head rest and pneumatic support function operate normally.
      Result
      Proceed to
      OK
      NG

  2. Click here

    CHECK VEHICLE CONDITION


    1. Check vehicle condition.

      Result
      Proceed to
      for LHD
      for RHD

  3. Click here

    READ VALUE USING GTS (FR DOOR COURTESY SW)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

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


      1. Body Electrical > Main Body > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        FR Door Courtesy SW Front door courtesy light switch assembly RH signal ON/OFF

        OFF: Front door RH closed

        ON: Front door RH open

        		 -



      1. Body Electrical > Main Body > Data List
        Tester Display
        FR Door Courtesy SW




      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Proceed to
      OK
      NG

  4. Click here

    INSPECT FRONT SEAT INNER BELT ASSEMBLY RH (BUCKLE MOTOR,BUCKLE SWITCH)


    1. Remove the front seat inner belt assembly RH (buckle motor,buckle switch).

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    2. Inspect the front seat inner belt assembly RH (buckle motor,buckle switch).

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      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE NO. 2 POSITION CONTROL ECU ASSEMBLYClick here

    • NG

      REPLACE FRONT SEAT INNER BELT ASSEMBLY RHClick here

  5. Click here

    READ VALUE USING GTS (FL DOOR COURTESY SW)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

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


      1. Body Electrical > Main Body > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        FL Door Courtesy SW Front door courtesy light switch assembly LH signal ON/OFF

        OFF: Front door LH closed

        ON: Front door LH open

        		 -



      1. Body Electrical > Main Body > Data List
        Tester Display
        FL Door Courtesy SW




      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Proceed to
      OK
      NG

  6. Click here

    INSPECT FRONT SEAT INNER BELT ASSEMBLY LH (BUCKLE MOTOR,BUCKLE SWITCH)


    1. Remove the front seat inner belt assembly LH (buckle motor,buckle switch).

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    2. Inspect the front seat inner belt assembly LH (buckle motor,buckle switch).

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      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE NO. 2 POSITION CONTROL ECU ASSEMBLYClick here

    • NG

      REPLACE FRONT SEAT INNER BELT ASSEMBLY LHClick here