NAVIGATION SYSTEM, Diagnostic DTC:B15D6

DTC Code DTC Name
B15D6 Display Disconnected

DESCRIPTION

The radio receiver assembly and multi-display*1 or accessory meter assembly*2 are connected via AVC-LAN communication line.

This DTC is stored when an AVC-LAN communication error occurs between the radio receiver assembly and multi-display*1 or accessory meter assembly*2.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15D6 Display Disconnected The multi-display*1 or accessory meter assembly*2 is/was not connected while the engine switch is/was on (ACC) or on (IG)

  • AVC-LAN circuit between radio receiver assembly and multi-display*1

    AVC-LAN circuit between radio receiver assembly and accessory meter assembly*2

  • Multi-display power source circuit*1

    Accessory meter assembly power source circuit*2

  • Multi-display*1

    Accessory meter assembly*2

  • Radio receiver assembly

Tech Tips

The radio receiver assembly is the master unit.

WIRING DIAGRAM

B002CGIE01
B002E4HE01

CAUTION / NOTICE / HINT

Note


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

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Check for optional components.


      1. Check that optional components (including associated wiring) which generate radio waves are not installed.

        Result
        Result Proceed to
        Optional components (including associated wiring) are installed. A
        Optional components (including associated wiring) are not installed. B

        Tech Tips


        • Electrical noise from radio waves generated by optional components or the wiring for those components may affect AVC-LAN communication.

        • This DTC may be stored when an AVC-LAN communication error occurs due to electrical noise.


    B

    GO TO STEP 3 Click here

    A

  2. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Remove optional components (including associated wiring).

      Note

      Do not remove optional components or associated wiring without the permission of the customer.

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    2. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Result Proceed to
      OK A
      NG (for 8 Inch Display) B
      NG (for 12.3 Inch Display) C

    A

    END

    C

    CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY POWER SOURCE) Click here

    B

  4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY POWER SOURCE)


    1. Disconnect the multi-display connector.

    2. B002CS2C01
      *a

      Front view of wire harness connector

      (to Multi-display)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      K52-13 (GND1) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      K52-12 (B) - K52-13 (GND1) Always 11 to 14 V
      K52-24 (ACC) - K52-13 (GND1) Engine switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - MULTI-DISPLAY)


    1. Disconnect the K57 radio receiver assembly connector.

    2. Disconnect the K52 multi-display connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      K57-45 (TX3+) - K52-7 (TX+) Always Below 1 Ω
      K57-46 (TX3-) - K52-19 (TX-) Always Below 1 Ω
      K57-45 (TX3+) or K52-7 (TX+) - Body ground Always 10 kΩ or higher
      K57-46 (TX3-) or K52-19 (TX-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE MULTI-DISPLAY


    1. Replace the multi-display with a new or known good one.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    3. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

  7. CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY POWER SOURCE)


    1. Disconnect the accessory meter assembly connector.

    2. B002CS2C02
      *a

      Front view of wire harness connector

      (to Accessory Meter Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      K126-13 (GND1) - Body ground Always Below 1 Ω

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      K126-12 (B) - K126-13 (GND1) Always 11 to 14 V
      K126-24 (ACC) - K126-13 (GND1) Engine switch on (ACC) 11 to 14 V
      K126-23 (IG) - K126-13 (GND1) Engine switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - ACCESSORY METER ASSEMBLY)


    1. Disconnect the K57 radio receiver assembly connector.

    2. Disconnect the K126 accessory meter assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      K57-45 (TX3+) - K126-7 (TX+) Always Below 1 Ω
      K57-46 (TX3-) - K126-19 (TX-) Always Below 1 Ω
      K57-45 (TX3+) or K126-7 (TX+) - Body ground Always 10 kΩ or higher
      K57-46 (TX3-) or K126-19 (TX-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. REPLACE ACCESSORY METER ASSEMBLY


    1. Replace the accessory meter assembly with a new or known good one.

      Click here

    2. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    3. Recheck for DTCs and check that no DTCs are output.


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here