NAVIGATION SYSTEM(for Navigation Receiver Type), Diagnostic DTC:B15F5

DTC Code DTC Name
B15F5 A/C ECU Vehicle Information Reading/Writing Processor Malfunction

DESCRIPTION

This DTC is stored when items controlled by the air conditioning amplifier assembly cannot be customized via the navigation system vehicle customization screen.

Tech Tips

The air conditioning amplifier assembly controls the air conditioning system related items that are customizable via the navigation system vehicle customization screen.

DTC No. DTC Detection Condition Trouble Area
B15F5 Air conditioning amplifier assembly vehicle setting processing malfunction

  • CAN communication system

  • Air conditioning system

  • Air conditioning amplifier assembly

  • Navigation receiver assembly

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

      (w/ Central Gateway ECU: Click here

      (w/o Central Gateway ECU: Click here

      OK
      CAN communication DTCs are not output.
      Result
      Result Proceed to
      OK A
      NG (w/ Central Gateway ECU) B
      NG (w/o Central Gateway ECU) C

    B

    GO TO CAN COMMUNICATION SYSTEM (w/ Central Gateway ECU) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (w/o Central Gateway ECU) Click here

    A

  2. CHECK AIR CONDITIONING SYSTEM


    1. Check if the air conditioning system is malfunctioning Click here.

      Tech Tips

      Customization may not be possible depending on the malfunction in the air conditioning system.

      OK
      No malfunctions are present in the air conditioning system.

    NG

    GO TO AIR CONDITIONING SYSTEM Click here

    OK

  3. CHECK CUSTOMIZE ITEMS


    1. Make a note of the customizable items for the air conditioning system.

      Tech Tips

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


      1. To match-up the items on the navigation system vehicle customization screen with the items on the GTS, check the customize parameters list for the air conditioning system related items that can be customized via the navigation system vehicle customization screen Click here.

    2. Using the GTS, check 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 GTS.

    OK

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    NG

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here