AUDIO AND VISUAL SYSTEM(for Radio and Display Type), 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 related items that are customizable via the audio and visual system vehicle customization screen.

DTC No. DTC Detection Condition Trouble Area
B15F7 Certification ECU (smart key ECU assembly) vehicle setting processing error.

  • CAN communication system

  • Entry and start system

  • Certification ECU (smart key ECU assembly)

  • 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.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. CHECK ENTRY AND START SYSTEM


    1. Check if the entry and start system is malfunctioning.

      for Entry Function Click here

      for Start Function Click here

      Tech Tips

      Customization may not be possible depending on the malfunction in the entry and start system.

      OK
      No malfunctions are present in the entry and start system.

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

      Result
      Condition Proceed to
      OK A
      NG (for Entry Function) B
      NG (for Start Function) C

    B

    GO TO ENTRY AND START SYSTEM (for Entry Function) Click here

    C

    GO TO ENTRY AND START SYSTEM (for Start Function) Click here

    A

  3. CHECK CUSTOMIZE ITEMS


    1. Display the "Door lock settings" screen.

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

      Tech Tips

      These items shown as customizable via the audio and visual system vehicle customization screen can also be changed manually. In the following step, change the items manually.


      1. Check the customize parameters list for the entry and start system related items that can be customized via the audio and visual system vehicle customization screen.

        for Entry Function Click here

        for Start Function Click here

    3. Confirm that it is possible to manually change the settings of the customize parameters for each system that are available for customization via the audio and visual system vehicle customization screen.

      OK
      The items available for customization via the audio and visual system vehicle customization screen can be customized successfully using the manual procedure.

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)