AUDIO AND VISUAL SYSTEM, Diagnostic DTC:B15DA

DTC Code DTC Name
B15DA Rear Console Recognition Disconnected

DESCRIPTION

The rear control switch and multi-media module receiver assembly are connected by the AVC-LAN communication line. When an AVC-LAN communication error occurs between the rear control switch and the multi-media module receiver assembly, this DTC will be stored.

DTC Code DTC Detection Condition Trouble Area
B15DA A device that is listed in the AVC-LAN connected device record of the master unit is missing.

  • Rear control switch

  • Accessory meter assembly*1

  • Multi-display*2

  • Harness or connector

WIRING DIAGRAM

A000OFKE15

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.

      OK
      No DTCs are output.

    OK

    END (COMMUNICATION MALFUNCTION CAUSED BY NOISE, ETC.)

    NG

  3. CHECK HARNESS AND CONNECTOR (REAR CONTROL SWITCH - BATTERY AND BODY GROUND)


    1. A000RORE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Rear Control Switch)

      Disconnect the rear control switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Z1-5 (E) - 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
      Z1-1 (+B) - Body ground Power switch off 11 to 14 V
      Z1-6 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Z1-7 (IG+) - Body ground Power switch on (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (REAR CONTROL SWITCH - ACCESSORY METER ASSEMBLY OR MULTI-DISPLAY)


    • *1: for 12.3 Inch

    • *2: for 8 Inch


    1. Disconnect the Z1 rear control switch connector.

    2. Disconnect the N62*1 accessory meter assembly connector.

    3. Disconnect the N155*2 multi-display connector.

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

      Standard Resistance
      for 12.3 Inch
      Tester Connection Condition Specified Condition
      Z1-14 (TX+) - N62-6 (TX1+) Always Below 1 Ω
      Z1-15 (TX-) - N62-18 (TX1-) Always Below 1 Ω
      Z1-14 (TX+) - Body ground Always 10 kΩ or higher
      Z1-15 (TX-) - Body ground Always 10 kΩ or higher
      for 8 Inch
      Tester Connection Condition Specified Condition
      Z1-14 (TX+) - N155-6 (TX1+) Always Below 1 Ω
      Z1-15 (TX-) - N155-18 (TX1-) Always Below 1 Ω
      Z1-14 (TX+) - Body ground Always 10 kΩ or higher
      Z1-15 (TX-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE REAR CONTROL SWITCH


    1. Replace the rear control switch with a new or normally functioning one Click here.


    NEXT

  6. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  7. CHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.

      OK
      No DTCs are output.
      Result
      Result Proceed to
      OK A
      NG (for 12.3 Inch) B
      NG (for 8 Inch) C

    A

    END (REAR CONTROL SWITCH IS DEFECTIVE)

    B

    REPLACE ACCESSORY METER ASSEMBLY Click here

    C

    REPLACE MULTI-DISPLAY Click here