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 (multiplex network body ECU) cannot be customized via the navigation 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 multi-display screen:

  • Power door lock control system

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

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

  • Lighting system (for Interior)

  • Lighting system (for Exterior)

DTC No. DTC Detection Condition Trouble Area
B15F6 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/ Smart Entry and Start System)

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

  • Lighting system (for Interior)

  • Lighting system (for Exterior)

  • Main body ECU (multiplex network body ECU)

  • Navigation ECU Sub-assembly

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

      OK
      CAN communication DTCs are not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. CHECK POWER DOOR LOCK CONTROL SYSTEM


    1. Check if the power door lock control system is malfunctioning 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.

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

      Result
      Result Proceed to
      OK (w/ Smart Entry and Start System) A
      OK (w/o Smart Entry and Start System) B
      NG C

    B

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

    C

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    A

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


    1. Check if the wireless door lock control system 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 wireless door lock control system.

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

      Result
      Result Proceed to
      NG A
      OK B

    B

    CHECK LIGHTING SYSTEM (for Interior) Click here

    A

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

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


    1. Check if the wireless door lock control system 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 wireless door lock control system.

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

      Result
      Result Proceed to
      NG A
      OK B

    B

    CHECK LIGHTING SYSTEM (for Interior) Click here

    A

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

  5. 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

  6. 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

  7. CHECK CUSTOMIZE ITEMS


    1. Display the "Door lock settings" or "Lights 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 navigation system vehicle customization screen can also be changed using the intelligent tester. In a following step, the intelligent tester will be used.


      1. To match-up the items in the multi-display with the items on the intelligent tester, check the customize parameters list for the power door lock control system 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 intelligent tester, check the customize parameters list for the wireless door lock control system (w/ Smart Entry and Start System) 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 intelligent tester, check the customize parameters list for the wireless door lock control system (w/o Smart Entry and Start System) 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 intelligent tester, check the customize parameters list for the lighting system (for Interior) related items that can be customized via the multi-display screen Click here.

      5. To match-up the items in the multi-display with the items on the intelligent tester, 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 intelligent tester, 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 intelligent tester.

    NG

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

    OK

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here