AUDIO AND VISUAL SYSTEM, Diagnostic DTC:B15DA

DTC Code DTC Name
B15DA Rear Console Recognition Disconnected

DESCRIPTION

The multi-display assembly and rear control switch are connected via AVC-LAN communication lines.

The radio receiver assembly is also connected to the multi-display assembly via AVC-LAN communication lines.

This DTC is stored when an AVC-LAN communication error occurs between the multi-display assembly and rear control switch.

Tech Tips

If B15DA and B15D6 are output at the same time, troubleshoot for B15D6 first.

DTC No. DTC Detection Condition Trouble Area
B15DA*

When either of the following conditions is met:


  • Rear control switch was not connected while the engine switch was on (IG) or on (ACC).

  • Communication between the master unit and the rear control switch was not possible when the engine was started.

  • Rear control switch power source circuit

  • AVC-LAN circuit between radio receiver assembly and rear control switch

  • Rear control switch

  • Multi-display assembly

  • Radio receiver assembly

  • Harness or connector

Tech Tips


  • *: Even if no fault is present, this DTC may be stored depending on the battery condition or engine start voltage.

  • The radio receiver assembly is the master unit.

WIRING DIAGRAM

A01W2P2E02

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK DTC


    1. If DTC B15D6 is output, perform troubleshooting for B15D6 first.

      Result
      Result Proceed to
      B15D6 is not output A
      B15D6 is output B

    B

    GO TO DTC B15D6 Click here

    A

  2. 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

  3. 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

  4. CHECK DTC


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check if the same DTC is output again.

      OK
      No DTCs are output.

    OK

    END

    NG

  5. CHECK HARNESS AND CONNECTOR (REAR CONTROL SWITCH POWER SOURCE)


    1. Disconnect the h2 rear control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      h2-16 (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
      h2-1 (+B) - h2-16 (GND) Always

      11 to 14 V*1

      9.5 to 14 V*2
      h2-7 (IG+) - h2-16 (GND) Engine switch on (IG) 11 to 14 V
      h2-6 (ACC) - h2-16 (GND) Engine switch on (ACC)

      11 to 14 V*1

      9.5 to 14 V*2

      • *1: w/o Stop and Start System

      • *2: w/ Stop and Start System

    4. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      OK A
      NG (w/o Stop and Start System) B
      NG (w/ Stop and Start System) C

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    C

    GO TO STOP AND START SYSTEM Click here

    A

  6. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - REAR CONTROL SWITCH)


    1. Disconnect the H93 multi-display assembly connector.

    2. Disconnect the h2 rear control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H93-6 (TX1+) - h2-15 (TX+) Always Below 1 Ω
      H93-18 (TX1-) - h2-5 (TX-) Always Below 1 Ω
      H93-6 (TX1+) - Body ground Always 10 kΩ or higher
      H93-18 (TX1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE REAR CONTROL SWITCH


    1. Replace the rear control switch Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs and check if the same DTC is output again.

      OK
      No DTCs are output.

    OK

    END

    NG

  8. REPLACE MULTI-DISPLAY ASSEMBLY


    1. Replace the multi-display assembly Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs and check if the same DTC is output again.

      OK
      No DTCs are output.

    OK

    END

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here