NAVIGATION SYSTEM, Diagnostic DTC:B15F5

DTC Code DTC Name
B15F5 Air Conditioner 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 multi-display*1 or accessory meter assembly*2 screen.


  • *1: for 8 Inch Display

  • *2: for 12.3 Inch Display

DTC No. Detection Item DTC Detection Condition Trouble Area
B15F5 Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction Air conditioning amplifier assembly vehicle setting processing malfunction

  • CAN communication system

  • Air conditioning system

  • Air conditioning amplifier assembly

  • Radio receiver assembly

CAUTION / NOTICE / HINT

Note

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed.

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PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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


      OK
      CAN communication system DTCs are not output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO CAN COMMUNICATION SYSTEM for LHD: Click here for RHD: Click here

    OK

  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.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO AIR CONDITIONING SYSTEM Click here

    OK

  3. CHECK CUSTOMIZE ITEMS


    1. Display the vehicle customization screen.

    2. 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 step, the GTS will be used.


      1. To match the items on the multi-display*1 or accessory meter assembly*2 with the items on the GTS, check the customize parameters list for the air conditioning system related items that can be customized via the multi-display*1 or accessory meter assembly*2 screen.

        Click here


        • *1: for 8 Inch Display

        • *2: for 12.3 Inch Display

    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*1 or accessory meter assembly*2 screen.

      OK
      The items available for customization via the multi-display*1 or accessory meter assembly*2 screen can be customized successfully using the GTS.

      • *1: for 8 Inch Display

      • *2: for 12.3 Inch Display

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Click here