AUDIO AND VISUAL SYSTEM (for Radio and Display Type), Diagnostic DTC:B15F8

DTC Code DTC Name
B15F8 Driver 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 audio and visual system vehicle customization screen.

Tech Tips

The front power seat switch LH*1 or RH*2 controls the front power seat control system (w/ Memory) related items that are customizable via the radio and display receiver assembly screen.

DTC Code DTC Detection Condition Trouble Area
B15F8 Front power seat switch LH*1 or RH*2 vehicle setting processing error.

  • CAN communication system

  • Front power seat control system (w/ Memory)

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

  • Radio and display receiver assembly

INSPECTION PROCEDURE

Tech Tips

When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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


      OK
      CAN communication DTCs are not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD with Entry and Start System) B
      NG (for LHD without Entry and Start System) C
      NG (for RHD with Entry and Start System) D
      NG (for RHD without Entry and Start System) E

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    E

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK FRONT POWER SEAT CONTROL SYSTEM (w/ Memory)


    1. Check if the front power seat control system (w/ Memory) is malfunctioning Click here.

      Tech Tips

      Customization may not be possible depending on the malfunction in the front power seat control system (w/ Memory).

      OK
      No malfunctions are present in the front power seat control system (w/ Memory).

    NG

    GO TO FRONT POWER SEAT CONTROL SYSTEM Click here

    OK

  3. CHECK CUSTOMIZE ITEMS


    1. Display the "Vehicle Customization" screen.

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

      Tech Tips

      These items shown as customizable via the audio and visual 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 (w/ Memory) related items that can be customized via the radio and display receiver 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 radio and display receiver assembly screen.

      OK
      The items available for customization via the radio and display receiver assembly screen can be customized successfully using the manual procedure.

    NG

    REPLACE POWER SEAT SWITCH ASSEMBLY Click here

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here