REAR SEAT ENTERTAINMENT SYSTEM, Diagnostic DTC:B156D

DTC Code DTC Name
B156D Blu-ray Disc Player Disconnected

DESCRIPTION

The disc player assembly and television display assembly are connected by the AVC-LAN communication line and HDMI cable.

When an AVC-LAN communication and HDMI cable communication error occurs between the disc player assembly and television display assembly, this DTC will be stored.

DTC Code DTC Detection Condition Trouble Area
B156D

When either condition below is met:


  • Television display assembly is/was not connected while the power switch is on (IG) or on (ACC).

  • Communication between the disc player assembly and the television display assembly is not possible when the power is started.

  • AVC-LAN communication line

  • HDMI cable

  • Television display assembly

  • Disc player assembly

  • Harness or connector

Tech Tips

Even if no fault is present, this DTC may be stored depending on the auxiliary battery condition or HV system is on voltage.

WIRING DIAGRAM

A01GZJDE05

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CLEAR DTC

    Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


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

      OK
      DTC B156D is not output.

    NG

    CHECK CONNECTOR CONNECTION CONDITION Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. CHECK CONNECTOR CONNECTION CONDITION


    1. Check that the television display assembly and disc player assembly connectors are connected properly.

      OK
      Connectors connected properly.

    NG

    CONNECT CONNECTOR CORRECTLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - AUXILIARY BATTERY AND BODY GROUND)


    1. A01GZL1E07
      Text in Illustration
      *A for 4-Passenger with Ottoman
      *B for 5-Passenger with Ottoman
      *C except Ottoman
      *a

      Front view of wire harness connector

      (to Television Display Assembly)

      Disconnect the television display assembly connector.

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

      Standard Resistance
      for 4-Passenger with Ottoman, except Ottoman
      Tester Connection Condition Specified Condition
      R92-3 (GND) - Body ground Always Below 1 Ω
      R92-19 (GND2) - Body ground Always Below 1 Ω
      for 5-Passenger with Ottoman
      Tester Connection Condition Specified Condition
      R112-3 (GND) - Body ground Always Below 1 Ω
      R112-19 (GND2) - Body ground Always Below 1 Ω

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

      Standard Voltage
      for 4-Passenger with Ottoman, except Ottoman
      Tester Connection Condition Specified Condition
      R92-1 (+B) - Body ground Always 11 to 14 V
      R92-17 (+B2) - Body ground Always 11 to 14 V
      for 5-Passenger with Ottoman
      Tester Connection Condition Specified Condition
      R112-1 (+B) - Body ground Always 11 to 14 V
      R112-17 (+B2) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01GY19E07
      Text in Illustration
      *A for 4-Passenger with Ottoman
      *B for 5-Passenger with Ottoman
      *C except Ottoman
      *a

      Front view of wire harness connector

      (to Disc Player Assembly)

      Disconnect the disc player assembly connector.

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

      Standard Resistance
      for 4-Passenger with Ottoman
      Tester Connection Condition Specified Condition
      z95-13 (GND) - Body ground Always Below 1 Ω
      for 5-Passenger with Ottoman, except Ottoman
      Tester Connection Condition Specified Condition
      R98-13 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      for 4-Passenger with Ottoman
      Tester Connection Condition Specified Condition
      z95-8 (+B) - Body ground Always 11 to 14 V
      z95-7 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      for 5-Passenger with Ottoman, except Ottoman
      Tester Connection Condition Specified Condition
      R98-8 (+B) - Body ground Always 11 to 14 V
      R98-7 (ACC) - Body ground Power switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - DISC PLAYER ASSEMBLY)


    • *1: for 4-Passenger with Ottoman

    • *2: for 5-Passenger with Ottoman

    • *3: except Ottoman


    1. Disconnect the R92*1, *3 or R112*2 television display assembly connector.

    2. Disconnect the z95*1 or R98*2, *3 disc player assembly connector.

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

      Standard Resistance
      for 4-Passenger with Ottoman
      Tester Connection Condition Specified Condition
      R92-24 (TX2+) - z95-9 (TX+) Always Below 1 Ω
      R92-25 (TX2-) - z95-10 (TX-) Always Below 1 Ω
      R92-24 (TX2+) - Body ground Always 10 kΩ or higher
      R92-25 (TX2-) - Body ground Always 10 kΩ or higher
      for 5-Passenger with Ottoman
      Tester Connection Condition Specified Condition
      R112-24 (TX2+) - R98-9 (TX+) Always Below 1 Ω
      R112-25 (TX2-) - R98-10 (TX-) Always Below 1 Ω
      R112-24 (TX2+) - Body ground Always 10 kΩ or higher
      R112-25 (TX2-) - Body ground Always 10 kΩ or higher
      except Ottoman
      Tester Connection Condition Specified Condition
      R92-24 (TX2+) - R98-9 (TX+) Always Below 1 Ω
      R92-25 (TX2-) - R98-10 (TX-) Always Below 1 Ω
      R92-24 (TX2+) - Body ground Always 10 kΩ or higher
      R92-25 (TX2-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (HDMI CABLE)


    1. Temporarily replace the harness and connector (HDMI cable) with a new or normally functioning one.


    NEXT

  8. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  9. CHECK FOR DTC


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

      OK
      DTC B156D is not output.

    NG

    REPLACE TELEVISION DISPLAY ASSEMBLY Click here

    OK

    END (HDMI CABLE IS DEFECTIVE)

  10. REPLACE TELEVISION DISPLAY ASSEMBLY


    1. Temporarily replace the television display assembly with a new or normally functioning one.



    NEXT

  11. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  12. CHECK FOR DTC


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

      OK
      DTC B156D is not output.
      Result
      Result Proceed to
      OK A
      NG (for 4-Passenger with Ottoman) B
      NG (for 5-Passenger with Ottoman) C
      NG (except Ottoman) D

    B

    REPLACE DISC PLAYER ASSEMBLY Click here

    C

    REPLACE DISC PLAYER ASSEMBLY Click here

    D

    REPLACE DISC PLAYER ASSEMBLY Click here

    A

    END (TELEVISION DISPLAY ASSEMBLY IS DEFECTIVE)