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NAVIGATION 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 navigation 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 multi-display assembly 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 receiver assembly
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CAUTION / NOTICE / HINT

Note:

If the certification ECU (smart key ECU assembly) is replaced, 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 communication DTCs are not output.
      Result
      Proceed to
      OK
      NG

  2. Click here

    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

      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

  3. Click here

    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 navigation 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 related items that can be customized via the multi-display assembly screen.

        for Entry Function:Click here

        for Start Function:Click here

    3. Using the GTS, check 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 (SMART KEY ECU ASSEMBLY)