AUDIO AND VISUAL SYSTEM(for Radio and Display Type), Diagnostic DTC:B15F6

DTC Code DTC Name
B15F6 Main Body ECU Vehicle Information Reading/Writing Process Malfunction

DESCRIPTION

This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen.

Tech Tips

The main body ECU (multiplex network body ECU) controls the items for the following systems that are customizable via the display screen:


  • Power door lock control system

  • Wireless door lock control system (w/ Entry and Start System)

  • Wireless door lock control system (w/o Entry and Start System)

  • Lighting system (EXT)

DTC No. Detection Item DTC Detection Condition Trouble Area
B15F6 Main Body ECU Vehicle Information Reading/Writing Process Malfunction Main body ECU (multiplex network body ECU) vehicle setting processing error.

  • CAN communication system

  • Power door lock control system

  • Wireless door lock control system (w/ Entry and Start System)

  • Wireless door lock control system (w/o Entry and Start System)

  • Lighting system (EXT)

  • Main body ECU (multiplex network body ECU)

  • Radio and display receiver assembly

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if the CAN communication system is functioning normally.

      for LHD with Central Gateway ECU:

      Click here

      for LHD without Central Gateway ECU:

      Click here

      for RHD with Central Gateway ECU:

      Click here

      for RHD without Central Gateway ECU:

      Click here

      Result
      Proceed to
      No DTCs are output
      CAN DTCs are output

    CAN DTCs are output

    GO TO CAN COMMUNICATION SYSTEM for LHD with Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM for LHD without Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD with Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM for RHD without Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here

    No DTCs are output

  2. CHECK POWER DOOR LOCK CONTROL SYSTEM


    1. Check if the power door lock control system is functioning normally.

      Click here

      Tech Tips

      Customization may not be possible depending on the malfunction in the power door lock control system.

      OK
      No malfunctions are present in the power door lock control system.
      Result
      Proceed to
      OK (w/ Entry and Start System)
      OK (w/o Entry and Start System)
      NG

    OK (w/o Entry and Start System)

    CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Entry and Start System) Click here

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK (w/ Entry and Start System)

  3. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Entry and Start System)


    1. Check if the wireless door lock control system (w/ Entry and Start System) is malfunctioning.

      Click here

      Tech Tips

      Customization may not be possible depending on the malfunction in the wireless door lock control system (w/ Entry and Start System).

      OK
      No malfunctions are present in the wireless door lock control system (w/ Entry and Start System).
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 5 Click here

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Entry and Start System) Click here

  4. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Entry and Start System)


    1. Check if the wireless door lock control system (w/o Entry and Start System) is malfunctioning.

      Click here

      Tech Tips

      Customization may not be possible depending on the malfunction in the wireless door lock control system (w/o Entry and Start System).

      OK
      No malfunctions are present in the wireless door lock control system (w/o Entry and Start System).

    2. Proceed to the next step based on the check result.

      Result
      Proceed to
      OK
      NG

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Entry and Start System) Click here

    OK

  5. CHECK LIGHTING SYSTEM (EXT)


    1. Check if the lighting system (EXT) is malfunctioning.

      Click here

      Tech Tips

      Customization may not be possible depending on the malfunction in the lighting system (EXT).

      Result
      Proceed to
      No malfunctions are present in the lighting system (EXT)
      Malfunctions are present in the lighting system (EXT)

    Malfunctions are present in the lighting system (EXT)

    GO TO LIGHTING SYSTEM (EXT) Click here

    No malfunctions are present in the lighting system (EXT)

  6. CHECK CUSTOMIZE ITEMS


    1. Display the "Vehicle Settings" screen.

    2. Make a note of the customizable items for each main body ECU (multiplex network body ECU) related system.

      Tech Tips

      These items shown as customizable via the audio and visual system vehicle customization screen can also be changed using the GTS. In a following step, the GTS will be used.


      1. To match-up the items in the display screen with the items on the GTS, check the customize parameters list for the power door lock control system related items that can be customized via the display screen.

        Click here

      2. To match-up the items in the display screen with the items on the GTS, check the customize parameters list for the wireless door lock control system (w/ Entry and Start System) related items that can be customized via the display screen.

        Click here

      3. To match-up the items in the display screen with the items on the GTS, check the customize parameters list for the lighting system (EXT) related items that can be customized via the display screen.

        Click here

    3. Using the GTS, confirm that it is possible to change the settings of the customize parameters that are available for customization via the display screen.

      OK
      The items available for customization via the display screen can be customized successfully using the GTS.
      Result
      Proceed to
      OK
      NG (for LHD)
      NG (for RHD)

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG (for LHD)

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG (for RHD)

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here