REAR SEAT ENTERTAINMENT SYSTEM (for Seatback) Visual Mute Signal Circuit between Radio Receiver and Multi-display Controller

DESCRIPTION

This is the visual mute signal circuit between the multi-media module receiver assembly and the multi-display controller sub-assembly.

WIRING DIAGRAM

A01EQ73E06

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. A01ERZGE06
      Text in Illustration
      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      F77-4 (VMTR) - Body ground RSE playing → Source changed 3.5 V or higher → Below 1 V

    NG

    CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY) Click here

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY)


    1. Disconnect the F77 multi-media module receiver assembly connector.

    2. Disconnect the L56 multi-display controller sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F77-4 (VMTR) - L56-8 (VMTR) Always Below 1 Ω
      F77-4 (VMTR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY


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

    2. A01EPVGE05
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multi-display Controller Sub-assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L56-8 (VMTR) - Body ground RSE playing → Source changed 3.5 V or higher → Below 1 V

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY Click here