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.

The multi-display controller sub-assembly, disc player assembly and television display assembly are connected by the 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 hybrid control system is started.

  • Communication between the multi-display controller sub-assembly, disc player assembly and the television display assembly is not possible when the hybrid control system is started.

  • AVC-LAN communication line

  • HDMI cable

  • Television display assembly

  • Disc player assembly

  • Multi-display controller sub-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 television display assembly is the master unit.

WIRING DIAGRAM

A01GYKKE05

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
      No DTCs are 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, multi-display controller sub-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 - BATTERY AND BODY GROUND)


    1. A01GZL1E21
      Text in Illustration
      *A for Roof
      *B for Center Console Side
      *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 Roof
      Tester Connection Condition Specified Condition
      z99-3 (GND) - Body ground Always Below 1 Ω
      z99-19 (GND2) - Body ground Always Below 1 Ω
      for Center Console Side
      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 Roof
      Tester Connection Switch Condition Specified Condition
      z99-1 (+B) - Body ground Power switch off 11 to 14 V
      z99-17 (+B2) - Body ground Power switch off 11 to 14 V
      for Center Console Side
      Tester Connection Switch Condition Specified Condition
      R112-1 (+B) - Body ground Power switch off 11 to 14 V
      R112-17 (+B2) - Body ground Power switch off 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01GY19E18
      Text in Illustration
      *A for 4-passenger with Ottoman
      *B except 4-passenger with 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
      except 4-passenger with 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 Switch Condition Specified Condition
      z95-8 (+B) - Body ground Power switch off 11 to 14 V
      z95-7 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      except 4-passenger with Ottoman
      Tester Connection Switch Condition Specified Condition
      R98-8 (+B) - Body ground Power switch off 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 (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - BATTERY AND BODY GROUND)


    1. A01H0OME05
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multi-display Controller Sub-assembly)

      Disconnect the multi-display controller sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R114-5 (GND) - Body ground Always Below 1 Ω
      R114-6 (GND2) - 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
      R114-4 (+B) - Body ground Power switch off 11 to 14 V
      R114-8 (ACC) - Body ground Power switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - DISC PLAYER ASSEMBLY AND MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY)


    • *1: for 4-passenger with Ottoman

    • *2: except 4-passenger with Ottman


    1. for Roof:


      1. Disconnect the z99 television display assembly connector.

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

      3. Disconnect the R114 multi-display controller sub-assembly connector.

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

        Standard Resistance
        for 4-passenger with Ottoman
        Tester Connection Condition Specified Condition
        z99-4 (TX2+) - z95-9 (TX+) Always Below 1 Ω
        z99-5 (TX2-) - z95-10 (TX-) Always Below 1 Ω
        z99-20 (TX3+) - R114-1 (TX+) Always Below 1 Ω
        z99-21 (TX3-) - R114-2 (TX-) Always Below 1 Ω
        z99-4 (TX2+) or z95-9 (TX+) - Body ground Always 10 kΩ or higher
        z99-5 (TX2-) or z95-10 (TX-) - Body ground Always 10 kΩ or higher
        z99-20 (TX3+) or R114-1 (TX+) - Body ground Always 10 kΩ or higher
        z99-21 (TX3-) or R114-2 (TX-) - Body ground Always 10 kΩ or higher
        except 4-passenger with Ottoman
        Tester Connection Condition Specified Condition
        z99-4 (TX2+) - R98-9 (TX+) Always Below 1 Ω
        z99-5 (TX2-) - R98-10 (TX-) Always Below 1 Ω
        z99-20 (TX3+) - R114-1 (TX+) Always Below 1 Ω
        z99-21 (TX3-) - R114-2 (TX-) Always Below 1 Ω
        z99-4 (TX2+) or R98-9 (TX+) - Body ground Always 10 kΩ or higher
        z99-5 (TX2-) or R98-10 (TX-) - Body ground Always 10 kΩ or higher
        z99-20 (TX3+) or R114-1 (TX+) - Body ground Always 10 kΩ or higher
        z99-21 (TX3-) or R114-2 (TX-) - Body ground Always 10 kΩ or higher

    2. for Center Console Side:


      1. Disconnect the R112 television display assembly connector.

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

      3. Disconnect the R114 multi-display controller sub-assembly connector.

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

        Standard Resistance
        for 4-passenger with Ottoman
        Tester Connection Condition Specified Condition
        R112-4 (TX2+) - z95-9 (TX+) Always Below 1 Ω
        R112-5 (TX2-) - z95-10 (TX-) Always Below 1 Ω
        R112-20 (TX3+) - R114-1 (TX+) Always Below 1 Ω
        R112-21 (TX3-) - R114-2 (TX-) Always Below 1 Ω
        R112-4 (TX2+) or z95-9 (TX+) - Body ground Always 10 kΩ or higher
        R112-5 (TX2-) or z95-10 (TX-) - Body ground Always 10 kΩ or higher
        R112-20 (TX3+) or R114-1 (TX+) - Body ground Always 10 kΩ or higher
        R112-21 (TX3-) or R114-2 (TX-) - Body ground Always 10 kΩ or higher
        except 4-passenger with Ottoman
        Tester Connection Condition Specified Condition
        R112-4 (TX2+) - R98-9 (TX+) Always Below 1 Ω
        R112-5 (TX2-) - R98-10 (TX-) Always Below 1 Ω
        R112-20 (TX3+) - R114-1 (TX+) Always Below 1 Ω
        R112-21 (TX3-) - R114-2 (TX-) Always Below 1 Ω
        R112-4 (TX2+) or R98-9 (TX+) - Body ground Always 10 kΩ or higher
        R112-5 (TX2-) or R98-10 (TX-) - Body ground Always 10 kΩ or higher
        R112-20 (TX3+) or R114-1 (TX+) - Body ground Always 10 kΩ or higher
        R112-21 (TX3-) or R114-2 (TX-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (HDMI CABLE)


    1. Replace the harness and connector (HDMI cable) with a new or known good one.


    NEXT

  9. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  10. CHECK FOR DTC


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

      OK
      No DTCs are output.

    NG

    REPLACE TELEVISION DISPLAY ASSEMBLY Click here

    OK

    END (HDMI CABLE IS DEFECTIVE)

  11. REPLACE TELEVISION DISPLAY ASSEMBLY


    1. Replace the television display assembly with a new or known good one.



    NEXT

  12. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  13. CHECK FOR DTC


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

      OK
      No DTCs are output.

    NG

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here

    OK

    END (TELEVISION DISPLAY ASSEMBLY IS DEFECTIVE)

  14. REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY


    1. Replace the multi-display controller sub-assembly with a new or known good one Click here.


    NEXT

  15. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  16. CHECK FOR 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 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 (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY IS DEFECTIVE)