AUDIO AND VISUAL SYSTEM(except 8 Speakers), Diagnostic DTC:B15D6

DTC Code DTC Name
B15D6 Display Disconnected

DESCRIPTION

The radio receiver assembly and multi-display assembly 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 assembly.

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

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

  • Multi-display assembly power source circuit

  • Multi-display assembly

  • Radio receiver assembly

  • Harness or connector

Tech Tips

The radio receiver assembly is the master unit.

WIRING DIAGRAM

A0005DUE30

CAUTION / NOTICE / HINT

Note

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

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

      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

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


    1. Disconnect the H93 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H93-13 (GND1) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      H93-12 (B) - H93-13 (GND1) Power switch off 11 to 14 V
      H93-24 (ACC) - H93-13 (GND1) Power 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 ASSEMBLY)


    1. Disconnect the H97 radio receiver assembly connector.

    2. Disconnect the H93 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H93-7 (TX+) - H97-45 (TX3+) Always Below 1 Ω
      H93-19 (TX-) - H97-46 (TX3-) Always Below 1 Ω
      H93-7 (TX+) - Body ground Always 10 kΩ or higher
      H93-19 (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 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.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here