AUDIO AND VISUAL SYSTEM (for Radio and Display Type without Intuitive Parking Assist System), 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 smart key 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

  • Smart key system

  • Certification ECU (smart key ECU assembly)

  • Radio and display receiver assembly

INSPECTION PROCEDURE

Note

Before replacing the certification ECU (smart key ECU assembly), refer to Registration Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Use the Techstream 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 SMART KEY SYSTEM (for Entry Function)


    1. Check if the smart key system (for Entry Function) is malfunctioning Click here.

      Tech Tips

      Customization may not be possible depending on the malfunction in the smart key system (for Entry Function).

      OK
      No malfunctions are present in the smart key system (for Entry Function).

    NG

    GO TO SMART KEY SYSTEM (for Entry Function) Click here

    OK

  3. CHECK SMART KEY SYSTEM (for Start Function)


    1. Check if the smart key system (for Start Function) is malfunctioning Click here.

      Tech Tips

      Customization may not be possible depending on the malfunction in the smart key system (for Start Function).

      OK
      No malfunctions are present in the smart key system (for Start Function).

    NG

    GO TO SMART KEY SYSTEM (for Start Function) Click here

    OK

  4. CHECK CUSTOMIZE ITEMS


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

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

    2. 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.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Click here

    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here