NAVIGATION SYSTEM, Diagnostic DTC:B15F8

DTC Code DTC Name
B15F8 D-Seat ECU Vehicle Information Reading/Writing Process Malfunction

DESCRIPTION


This DTC is stored when items controlled by the front power seat switch LH*1 or RH*2 cannot be customized via the navigation system vehicle customization screen.

Tech Tips

The front power seat switch LH*1 or RH*2 controls the front power seat control system related items that are customizable via the multi-display assembly screen.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15F8 D-Seat ECU Vehicle Information Reading/Writing Process Malfunction Front power seat switch LH*1 or RH*2 vehicle setting processing error.

  • CAN communication system

  • Front power seat control system

  • Front power seat switch LH*1 or RH*2

  • Radio receiver assembly

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Use the GTS to check if the CAN communication system is functioning normally.

      for LHD: Click here

      for RHD: Click here

      OK
      CAN communication DTCs are not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK FRONT POWER SEAT CONTROL SYSTEM


    1. Check if the front power seat control system is malfunctioning.

      Click here

      Tech Tips

      Customization may not be possible depending on the malfunction in the front power seat control system.

      OK
      No malfunctions are present in the front power seat control system.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO FRONT POWER SEAT CONTROL SYSTEM Click here

    OK

  3. CHECK CUSTOMIZE ITEMS


    • *1: for LHD

    • *2: for RHD


    1. Display the "Vehicle Customization" screen.

    2. Make a note of the customizable items for each front power seat switch LH*1 or RH*2 related system.

      Tech Tips

      These items shown as customizable via the navigation system vehicle customization screen can also be changed manually. In a following step, a manual procedure will be used.


      1. Check the customize parameters list for the front power seat control system related items that can be customized via the multi-display assembly screen.

        Click here

    3. Manually change and confirm that it was possible to successfully change the settings of the customize parameters for each system that are available for customization via the multi-display assembly screen.

      OK
      The items available for customization via the multi-display assembly screen can be customized successfully using the manual procedure.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    B

    REPLACE FRONT POWER SEAT SWITCH LH Click here

    C

    REPLACE FRONT POWER SEAT SWITCH RH Click here