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REAR SEAT ENTERTAINMENT SYSTEM, Diagnostic DTC:B156D

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DTC Code DTC Name
B156D Blu-ray Disc Player Disconnected
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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 power switch is on (IG) or (ACC).

  • Communication between the controller sub-assembly and television display assembly is not possible when the power switch is on (READY).

  • Harness or connector

  • Multi-display controller sub-assembly

  • Disc player assembly
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


  1. Click here

    CLEAR DTC


    1. Clear the DTCs.

      Click here


      1. Body Electrical > Navigation System > Clear DTCs


      Result
      Proceed to
      NEXT

  2. Click here

    CHECK FOR DTC


    1. Check for DTCs.

      Click here


      1. Body Electrical > Navigation System > Trouble Codes


      OK
      DTC B156D is not output.
      Result
      Proceed to
      OK
      NG

  3. Click here

    CHECK CONNECTION OF CONNECTOR


    1. Turn the power 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

  4. Click here

    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 Power switch off 11 to 14 V
      L140-7 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. Click here

    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

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    REPLACE DISC PLAYER ASSEMBLY


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

      Click here

      Result
      Proceed to
      NEXT

  7. Click here

    CLEAR DTC


    1. Clear the DTCs.

      Click here


      1. Body Electrical > Navigation System > Clear DTCs


      Result
      Proceed to
      NEXT

  8. Click here

    CHECK FOR DTC


    1. Check for DTCs.

      Click here


      1. 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-ASSEMBLYClick here