AUDIO AND VISUAL SYSTEM (for Radio and Display Type), Diagnostic DTC:B15D5

DTC Code DTC Name
B15D5 Rear Seat Entertainment System Disconnected

DESCRIPTION

The radio and display receiver assembly and television display assembly are connected by the AVC-LAN communication line.

When an AVC-LAN communication error occurs between the radio and display receiver assembly and television display assembly, these DTCs will be stored.

DTC Code DTC Detection Condition Trouble Area
B15D5

When either condition below is met:


  • The television display assembly is/was not connected while the ignition switch is/was turned to ON or ACC.

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

  • AVC-LAN communication line

  • Television display assembly

  • Radio and display receiver 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 radio and display receiver assembly is the master unit.

WIRING DIAGRAM

A01DO5IE01

INSPECTION PROCEDURE

Note

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

Tech Tips

When replacing the radio and display receiver assembly, it is necessary to perform the vehicle contract setting for Connected Services (w/ Connected Services Function).

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      No DTCs are output.

    NG

    CHECK CONNECTOR CONNECTION CONDITION Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK CONNECTOR CONNECTION CONDITION


    1. Check that the television display assembly and radio and display receiver assembly connectors are connected properly.

      OK
      The connectors are connected properly.

    NG

    CONNECT CONNECTOR CORRECTLY

    OK

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


    1. A01DUDME70
      Text in Illustration
      *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
      Tester Connection Condition Specified Condition
      W14-17 (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
      W14-1 (+B) - W14-17 (GND) Always 11 to 14 V
      W14-2 (ACC) - W14-17 (GND) Ignition switch off Below 1 V
      W14-2 (ACC) - W14-17 (GND) Ignition switch ACC 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. A01DSLBE24

      Remove the radio and display receiver assembly Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      9 (TX-) - 10 (TX+) Always 60 to 80 Ω

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEVISION DISPLAY ASSEMBLY)


    1. Disconnect the W14 television display assembly connector.

    2. Disconnect the H52 radio and display receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W14-3 (TX1+) - H52-9 (TX+) Always Below 1 Ω
      W14-4 (TX1-) -H52-10 (TX-) Always Below 1 Ω
      W14-3 (TX1+) - Body ground Always 10 kΩ or higher
      W14-4 (TX1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK TELEVISION DISPLAY ASSEMBLY


    1. Replace the television display assembly with a known good one Click here.

    2. Clear the DTCs Click here.

    3. Check for DTCs Click here.

      OK
      No DTCs are output.

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

    END (TELEVISION DISPLAY ASSEMBLY IS DEFECTIVE)