AUDIO AND VISUAL SYSTEM(w/ Multi-display), Diagnostic DTC:B15F7

DTC Code DTC Name
B15F7 Certification ECU Vehicle Information Reading/Writing Process Malfunction

DESCRIPTION

This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the audio and visual system vehicle customization screen.

Tech Tips

The certification ECU (smart key ECU assembly) controls the entry and start system (for Entry Function) related items that are customizable via the multi-display assembly screen.

DTC Code DTC Detection Condition Trouble Area
B15F7 Certification ECU (smart key ECU assembly) vehicle setting processing error.

  • CAN communication system

  • Entry and start system (for Entry Function)

  • Certification ECU (smart key ECU assembly)

  • Multi-media module receiver assembly

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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


      OK
      CAN communication system DTCs are not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD with Central Gateway ECU) B
      NG (for LHD without Central Gateway ECU) C
      NG (for RHD with Central Gateway ECU) D
      NG (for RHD without Central Gateway ECU) E

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    E

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK ENTRY AND START SYSTEM


    1. Check if the entry and start system (for Entry Function) is malfunctioning Click here.

      Tech Tips

      Customization may not be possible depending on the malfunction in the entry and start system (for Entry Function).

      OK
      No malfunctions are present in the entry and start system (for Entry Function).

    NG

    GO TO ENTRY AND START SYSTEM Click here

    OK

  3. CHECK CUSTOMIZE ITEMS


    1. Display the "Vehicle Customization" screen.

    2. Make a note of the customizable items for each certification ECU related system.

      Tech Tips

      These items shown as customizable via the multi-display assembly vehicle customization screen can also be changed using the GTS. In a following step, the GTS will be used.


      1. Check the customize parameters list for the entry and start system (for Entry Function) related items that can be customized via the multi-display assembly screen Click here.

    3. Manually change and confirm that it was possible to successfully change the settings of the customize parameters for each system that are available for customization via the multi-display assembly screen.

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

    OK

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)