AUDIO AND VISUAL SYSTEM(for Radio and Display Type), Diagnostic DTC:B15D6

DTC Code DTC Name
B15D6 Display Disconnected

DESCRIPTION

The multi-display assembly and radio receiver assembly are connected via AVC-LAN communication line.

This DTC is stored when an AVC-LAN communication error occurs between the multi-display assembly and radio receiver assembly.

DTC No. DTC Detection Condition Trouble Area
B15D6 A device that is listed in the AVC-LAN connected device record of the master unit is missing.

  • Multi-display assembly power source circuit

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

  • Multi-display assembly

  • Radio receiver assembly

  • Harness or connector

Tech Tips

The radio receiver assembly is the master unit.

WIRING DIAGRAM

B001LHFE09

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection 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

    CHECK DTC 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.


    NEXT

  3. CHECK DTC


    1. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    OK

    END

    NG

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


    1. Disconnect the H160 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H160-13 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H160-12 (B) - H160-13 (GND) Power switch off 11 to 14 V
      H160-24 (ACC) - H160-13 (GND) Power switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the H166 radio receiver assembly connector.

    2. Disconnect the H160 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H166-11 (TX4+) - H160-7 (TX+) Always Below 1 Ω
      H166-12 (TX4-) - H160-19 (TX-) Always Below 1 Ω
      H166-11 (TX4+) - Body ground Always 10 kΩ or higher
      H166-12 (TX4-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE MULTI-DISPLAY ASSEMBLY


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

    2. Clear the DTCs Click here.

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

      OK
      No DTCs are output.

    OK

    END

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here