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AUDIO AND VISUAL SYSTEM(w/o Parking Assist Monitor System), Diagnostic DTC:B15F7

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DTC Code DTC Name
B15F7 Certification ECU Vehicle Information Reading/Writing Process Malfunction
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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 (for Entry Function) related items that are customizable via the multi-display assembly screen (w/ Entry Function).

  • The certification ECU (smart key ECU assembly) controls the push-button start related items that are customizable via the multi-display assembly screen (w/o Entry Function).

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 error

  • CAN communication system

  • Entry and start system (for Entry Function)*1

  • Push-button start*2

  • Certification ECU (smart key ECU assembly)

  • Radio receiver assembly

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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


  1. Click here

    CHECK CAN COMMUNICATION SYSTEM


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

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      OK
      CAN DTCs are not output.
      Result
      Result Proceed to
      NG A
      OK (w/ Entry Function) B
      OK (w/o Entry Function) C

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    CHECK ENTRY AND START SYSTEM (for Entry Function)


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

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      Tip:

      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).
      Result
      Proceed to
      OK
      NG

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    CHECK ENTRY AND START SYSTEM (for Start Function)


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

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      Tip:

      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).
      Result
      Proceed to
      OK
      NG

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    CHECK CUSTOMIZE ITEMS


    1. Display the "Vehicle Customization" screen.

    2. Make a note of the customizable items for each 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 multi-display assembly with the items on the GTS, 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.

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      2. To match-up the items on the multi-display assembly with the items on the GTS, check the customize parameters list for the entry and start system (for Start Function) related items that can be customized via the multi-display assembly screen.

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    3. Using the GTS, confirm that it is possible to change the settings of the customize parameters 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 GTS.
      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE RADIO RECEIVER ASSEMBLYClick here

    • NG

      REPLACE CERTIFICATION ECU