NAVIGATION 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 navigation 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 navigation system vehicle customization screen.

DTC No. DTC Detection Condition Trouble Area
B15F7 Certification ECU (smart key ECU assembly) vehicle setting processing malfunction

  • CAN communication system

  • Smart key system

  • Certification ECU (smart key ECU assembly)

  • Navigation 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


    1. for Entry Function:

      Check if the smart key system is malfunctioning Click here.

      for Start Function:

      Check if the smart key system is malfunctioning Click here.

      Tech Tips

      Customization may not be possible depending on the malfunction in the smart key system.

      OK
      No malfunctions are present in the smart key system.
      Result
      Result Proceed to
      OK A
      NG (for Entry Function) B
      NG (for Start Function) C

    B

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

    C

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

    A

  3. CHECK CUSTOMIZE ITEMS


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

      Tech Tips

      The items shown as customizable via the navigation system vehicle customization screen can also be changed using the Techstream. In the following step, the Techstream will be used.


      1. To match-up the items on the navigation system vehicle customization screen with the items on the Techstream, check the customize parameters list for the smart key system (for Entry Function) related items that can be customized via the navigation system vehicle customization screen Click here.

      2. To match-up the items on the navigation system vehicle customization screen with the items on the Techstream, check the customize parameters list for the smart key system (for Start Function) related items that can be customized via the navigation system vehicle customization screen Click here.

    2. Using the Techstream, confirm that it is possible to change the settings of the customize parameters that are available for customization via the navigation system vehicle customization screen.

      OK
      The items available for customization via the navigation system vehicle customization screen can be customized successfully using the Techstream.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Click here

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here