AUDIO AND VISUAL SYSTEM(except Sedan 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.

Tip:

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.

Detection Item

DTC Detection Condition

Trouble Area

B15F7

Certification ECU Vehicle Information Reading/Writing Process Malfunction

Certification ECU (smart key ECU assembly) vehicle setting processing malfunction

  • CAN communication system

  • Entry and start system

  • Certification ECU (smart key ECU assembly)

  • Radio and display 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.

    Result

    Proceed to

    OK

    NG
    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 hereClick here

      for Start Function:Click hereClick here

      Tip:

      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.

    Result

    Proceed to

    OK

    NG
    NG

    GO TO ENTRY AND START SYSTEM

    for Entry Function:Click hereClick here

    for Start Function:Click hereClick here

    OK

  3. CHECK CUSTOMIZE ITEMS

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

      Tip:

      The items shown as customizable via the audio and visual system vehicle customization screen can also be changed using the GTS. In the following step, the GTS will be used.

      1. To match-up the items on the audio and visual system vehicle customization screen with the items on the GTS, 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

    2. Using the GTS, confirm that it is possible to change the settings of the customize parameters 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 GTS.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click hereClick here

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)