NAVIGATION SYSTEM, 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 navigation system vehicle customization screen.

Tech Tips


    The main body ECU controls the items for the following systems that are customizable via the radio and display receiver assembly screen:

  • Power door lock control system

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

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

  • Lighting system (INT)

  • Lighting system (EXT)

DTC Code DTC Detection Condition Trouble Area
B15F6 Main body ECU (instrument panel junction block assembly) vehicle setting processing error.

  • CAN communication system

  • Power door lock control system

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

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

  • Lighting system (INT)

  • Lighting system (EXT)

  • Main body ECU

  • Radio and display receiver assembly

CAUTION / NOTICE / HINT

Note

Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections Click here.

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 LIGHTING SYSTEM (INT)


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

      Tech Tips

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

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

    NG

    GO TO LIGHTING SYSTEM (INT) Click here

    OK

  3. 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).

      OK
      No malfunctions are present in the lighting system (EXT).
      Result
      Result Proceed to
      OK (w/ Power Switch) A
      OK (w/o Power Switch) B
      NG C

    B

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

    C

    GO TO LIGHTING SYSTEM (EXT) Click here

    A

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


    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 (w/ Power Switch).

      OK
      No malfunctions are present in the wireless door lock control system (w/ Power Switch).

    NG

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

    OK

  5. 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 radio and display receiver assembly 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 radio and display receiver assembly 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 radio and display receiver assembly screen Click here.

      2. To match-up the items in the radio and display receiver assembly with the items on the GTS, check the customize parameters list for the lighting system (INT) related items that can be customized via the radio and display receiver assembly screen Click here.

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

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE MAIN BODY ECU

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


    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 (w/o Power Switch).

      OK
      No malfunctions are present in the wireless door lock control system (w/o Power Switch).

    NG

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

    OK

  7. 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 radio and display receiver assembly 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 radio and display receiver assembly 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 radio and display receiver assembly screen Click here.

      2. To match-up the items in the radio and display receiver assembly with the items on the GTS, check the customize parameters list for the lighting system (INT) related items that can be customized via the radio and display receiver assembly screen Click here.

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

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE MAIN BODY ECU