NAVIGATION SYSTEM(for Sedan), 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.

Tip:

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

  • Wireless door lock control system

  • Lighting system (for Interior)

  • Lighting system (for Exterior)

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

  • Wireless door lock control system

  • Lighting system (for Interior)

  • Lighting system (for Exterior)

  • Main body ECU (multiplex network body ECU)

  • Radio and display receiver assembly

PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

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

      Click here

      OK

      CAN communication DTCs are not output.

    Result

    Proceed to

    OK

    NG
    NG

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    OK

  2. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM

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

      w/ Entry and Start System:Click here

      w/o Entry and Start System:Click here

      Tip:

      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.

    Result

    Proceed to

    OK

    NG
    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

    w/ Entry and Start System:Click here

    w/o Entry and Start System:Click here

    OK

  3. CHECK LIGHTING SYSTEM (for Interior)

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

      Click here

      Tip:

      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).

    Result

    Proceed to

    OK

    NG
    NG

    GO TO LIGHTING SYSTEM (for Interior)

    Click here

    OK

  4. CHECK LIGHTING SYSTEM (for Exterior)

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

      Click here

      Tip:

      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).

    Result

    Proceed to

    OK

    NG
    NG

    GO TO LIGHTING SYSTEM (for Exterior)

    Click here

    OK

  5. CHECK CUSTOMIZE ITEMS

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

      Tip:

      The items shown as customizable via the navigation system vehicle customization screen can also be changed using the GTS. In the following steps, the GTS will be used.

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

        w/ Entry and Start System:Click here

        w/o Entry and Start System:Click here

      2. To match-up the items on the navigation system vehicle customization screen 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 navigation system vehicle customization screen.

        Click here

      3. To match-up the items on the navigation system vehicle customization screen 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 navigation system vehicle customization screen.

        Click here

    2. Using the GTS, confirm that it is possible to change the settings of the customize parameters that are available for customization via the navigation system vehicle customization screen.

      OK

      The items available for customization via the navigation system vehicle customization screen can be customized successfully using the GTS.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    for LHD:Click here

    for RHD:Click here