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 cannot be customized via the audio and visual system vehicle customization screen.

Tech Tips


    The main body ECU controls the items for the following systems that are customizable via the multi-display screen:

  • Wireless door lock control system (w/ Power Switch)

  • Wireless door lock control system (w/o Power Switch)

  • Lighting system (for Interior)

  • Lighting system (for Exterior)

DTC Code DTC Detection Condition Trouble Area
B15F6 Main body ECU vehicle setting processing error.

  • CAN communication system

  • Wireless door lock control system (w/ Power Switch)

  • Wireless door lock control system (w/o Power Switch)

  • Lighting system (for Interior)

  • Lighting system (for Exterior)

  • Main body ECU

  • Radio and display receiver assembly

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. w/ Toyota Safety Sense:


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

    2. w/ Toyota Safety Sense:


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

      OK
      CAN communication DTCs are not output.
      Result
      Result Proceed to
      OK A
      NG (w/ Toyota Safety Sense) B
      NG (w/o Toyota Safety Sense) C

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Power Switch)


    1. Check if the wireless door lock control system (w/ Power Switch) is malfunctioning Click here.

      Tech Tips

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

      OK
      No malfunctions are present in the power door lock control system.

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Power Switch) Click here

    OK

  3. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Power Switch)


    1. Check if the wireless door lock control system (w/o Power Switch) is malfunctioning Click here.

      Tech Tips

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

      OK
      No malfunctions are present in the power door lock control system.

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Power Switch) Click here

    OK

  4. CHECK LIGHTING SYSTEM (for Interior)


    1. Check if the lighting system (for Interior) is malfunctioning Click here.

      Tech Tips

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

      OK
      No malfunctions are present in the lighting system (for Interior).

    NG

    GO TO LIGHTING SYSTEM (for Interior) Click here

    OK

  5. CHECK LIGHTING SYSTEM (for Exterior)


    1. Check if the lighting system (for Exterior) is malfunctioning Click here.

      Tech Tips

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

      OK
      No malfunctions are present in the lighting system (for Exterior).

    NG

    GO TO LIGHTING SYSTEM (for Exterior) Click here

    OK

  6. CHECK CUSTOMIZE ITEMS


    1. Display the "Vehicle Customization" screen.

    2. Make a note of the customizable items for each main 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 multi-display with the items on the GTS, check the customize parameters list for the wireless door lock control system (w/ Power Switch) related items that can be customized via the multi-display screen Click here.

      2. To match-up the items in the multi-display with the items on the GTS, check the customize parameters list for the wireless door lock control system (w/o Power Switch) related items that can be customized via the multi-display screen Click here.

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

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

      OK
      The items available for customization via the multi-display screen can be customized successfully using the GTS.

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE MAIN BODY ECU Click here