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*1 or push-button start system*2 related items that are customizable via the audio and visual system vehicle customization screen.


  • *1: w/ Entry Function

  • *2: w/o Entry Function

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*1

  • Push-button start system*2

  • Certification ECU (smart key ECU assembly)

  • Radio receiver assembly

CAUTION / NOTICE / HINT

Note

Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

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.

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

      Result
      Result Proceed to
      OK (w/o Entry Function) A
      OK (w/ Entry Function) B
      NG C

    B

    CHECK ENTRY AND START SYSTEM (for Entry Function) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK PUSH-BUTTON START SYSTEM


    1. Check if the push-button start system is malfunctioning Click here.

      Tech Tips

      Customization may not be possible depending on the malfunction in the push-button start system.

      OK
      No malfunctions are present in the push-button start system.

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

      Result
      Result Proceed to
      NG A
      OK B

    A

    GO TO PUSH-BUTTON START SYSTEM Click here

    B

    CHECK CUSTOMIZE ITEMS Click here

  3. CHECK ENTRY AND START SYSTEM (for Entry Function)


    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 (for Entry Function) Click here

    OK

  4. CHECK ENTRY AND START SYSTEM (for Start Function)


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

      Tech Tips

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

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

    NG

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

    OK

  5. CHECK CUSTOMIZE ITEMS


    1. Make a note of the customizable items for each certification ECU (smart key ECU assembly) related system (w/o Entry Function).

      Tech Tips

      The 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 push-button start system related items that can be customized via the audio and visual system vehicle customization screen Click here.

    2. Make a note of the customizable items for each certification ECU (smart key ECU assembly) related system (w/ Entry Function).

      Tech Tips

      The 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 (for Entry Function) related items that can be customized via the audio and visual system vehicle customization screen Click here.

      2. Check the customize parameters list for the entry and start system (for Start Function) related items that can be customized via the audio and visual system vehicle customization screen 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 RECEIVER ASSEMBLY Click here

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)