REAR SEAT ENTERTAINMENT SYSTEM, Diagnostic DTC:B156D

DTC Code DTC Name
B156D Blu-ray Disc Player Disconnected

DESCRIPTION

The multi-display controller sub-assembly and disc player assembly are connected by an AVC-LAN communication line.

When an AVC-LAN communication error occurs between multi-display controller sub-assembly and disc player assembly, these DTCs will be stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
B156D Blu-ray Disc Player Disconnected

Either condition is met:


  • The television display assembly is not connected while the engine switch is on (IG) or (ACC).

  • Communication between the multi-display controller sub-assembly and television display assembly is not possible when the engine is started.

  • Harness or connector

  • Multi-display controller sub-assembly

  • Disc player assembly

WIRING DIAGRAM

B006EF2E03

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      DTC B156D is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  3. CHECK CONNECTION OF CONNECTOR


    1. Turn the engine switch off.

    2. Check that the connectors are properly connected to the multi-display controller sub-assembly and disc player assembly.

      OK
      Connectors are properly connected.
      Result
      Result Proceed to
      The connectors are properly connected A
      The connectors are not properly connected B

    B

    CONNECT CONNECTORS PROPERLY

    A

  4. CHECK HARNESS AND CONNECTOR (DISC PLAYER ASSEMBLY - BATTERY AND BODY GROUND)


    1. Disconnect the L140 disc player assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L140-13 (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
      L140-8 (+B) - Body ground Always 11 to 14 V
      L140-7 (ACC) - Body ground 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 (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - DISC PLAYER ASSEMBLY)


    1. Disconnect the L137 multi-display controller sub-assembly connector.

    2. Disconnect the L140 disc player assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L137-14 (TX3+) - L140-9 (TX+) Always Below 1 Ω
      L137-15 (TX3-) - L140-10 (TX-) Always Below 1 Ω
      L137-14 (TX3+) - Body ground Always 10 kΩ or higher
      L137-15 (TX3-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE DISC PLAYER ASSEMBLY


    1. Replace the disc player assembly with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  7. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  8. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Navigation System > Trouble Codes
      OK
      DTC B156D is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (DISC PLAYER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here