REAR SEAT ENTERTAINMENT SYSTEM, Diagnostic DTC:B15CE

DTC Code DTC Name
B15CE Seatback Display Disconnected

DESCRIPTION

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

This DTC will be stored when an AVC-LAN communication error occurs between the multi-display controller sub-assembly and television display assembly.

DTC No. DTC Detection Condition Trouble Area
B15CE

When either condition below is met:


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

  • Communication between the master unit and the television display assembly is not possible when the engine is started.

  • Television display assembly power source circuit

  • AVC-LAN circuit between multi-display controller sub-assembly and television display assembly

  • Multi-display controller sub-assembly

  • Television display 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.

WIRING DIAGRAM

A019JO8E03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    NG

    CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Check for optional components.


      1. Check that optional components (including associated wiring) which generate radio waves are not installed.

        Result
        Result Proceed to
        Optional components (including associated wiring) are installed. A
        Optional components (including associated wiring) are not installed. B

        Tech Tips


        • Electrical noise from radio waves generated by optional components or the wiring for those components may affect AVC-LAN communication.

        • This DTC may be stored when an AVC-LAN communication error occurs due to electrical noise.


    B

    CHECK DTC Click here

    A

  3. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Remove optional components (including associated wiring).

      Note

      Do not remove optional components or associated wiring without the permission of the customer.


    NEXT

  4. CHECK DTC


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    NG

    CHECK OPERATION Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  5. CHECK OPERATION


    1. Check which television display assembly does not operate.

      Result
      Result Proceed to
      The television display assembly LH does not operate. A
      The television display assembly RH does not operate. B

    B

    CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY RH POWER SOURCE) Click here

    A

  6. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY LH POWER SOURCE)


    1. Disconnect the a17 television display assembly LH connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      a17-12 (PWR2) - a17-19 (GND) Display operating 11 to 14 V
      a17-12 (PWR2) - a17-20 (GND2) Display operating 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY LH) Click here

    OK

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


    1. Disconnect the P46 multi-display controller sub-assembly connector.

    2. Disconnect the a17 television display assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P46-12 (TX2+) - a17-8 (TX2+) Always Below 1 Ω
      P46-13 (TX2-) - a17-9 (TX2-) Always Below 1 Ω
      P46-12 (TX2+) - Body ground Always 10 kΩ or higher
      P46-13 (TX2-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. REPLACE TELEVISION DISPLAY ASSEMBLY LH


    1. Replace the television display assembly LH Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    NG

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here

    OK

    END (TELEVISION DISPLAY ASSEMBLY LH WAS DEFECTIVE)

  9. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY LH)


    1. Disconnect the G46 multi-display controller sub-assembly connector.

    2. Disconnect the a17 television display assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G46-10 (GND2) - a17-19 (GND) Always Below 1 Ω
      G46-2 (PWR2) - a17-12 (PWR2) Always Below 1 Ω
      G46-11 (GND4) - a17-20 (GND2) Always Below 1 Ω
      G46-10 (GND2) - Body ground Always 10 kΩ or higher
      G46-2 (PWR2) - Body ground Always 10 kΩ or higher
      G46-11 (GND4) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here

  10. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY RH POWER SOURCE)


    1. Disconnect the Z21 television display assembly RH connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Z21-12 (PWR) - Z21-19 (GND6) Display operating 11 to 14 V
      Z21-12 (PWR) - Z21-20 (GND4) Display operating 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY RH) Click here

    OK

  11. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY RH)


    1. Disconnect the P46 multi-display controller sub-assembly connector.

    2. Disconnect the Z21 television display assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P46-10 (TX1+) - Z21-8 (TX1+) Always Below 1 Ω
      P46-11 (TX1-) - Z21-9 (TX1-) Always Below 1 Ω
      P46-10 (TX1+) - Body ground Always 10 kΩ or higher
      P46-11 (TX1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. REPLACE TELEVISION DISPLAY ASSEMBLY RH


    1. Replace the television display assembly RH Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    NG

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here

    OK

    END (TELEVISION DISPLAY ASSEMBLY RH WAS DEFECTIVE)

  13. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - TELEVISION DISPLAY ASSEMBLY RH)


    1. Disconnect the G46 multi-display controller sub-assembly connector.

    2. Disconnect the Z21 television display assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G46-12 (GND1) - Z21-19 (GND6) Always Below 1 Ω
      G46-3 (PWR1) - Z21-12 (PWR) Always Below 1 Ω
      G46-13 (GND3) - Z21-20 (GND4) Always Below 1 Ω
      G46-12 (GND1) - Body ground Always 10 kΩ or higher
      G46-3 (PWR1) - Body ground Always 10 kΩ or higher
      G46-13 (GND3) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here