AUDIO AND VISUAL SYSTEM(for Radio and Display Type) Mute Signal Circuit between Radio Receiver and Telematics Transceiver

DESCRIPTION

The telematics transceiver sends a mute signal to the radio and display receiver assembly.

The radio and display receiver assembly controls the volume according to the mute signal from the telematics transceiver.

WIRING DIAGRAM

B006RGEE19
*1 MUTE
*2 Radio and Display Receiver Assembly
*3 Telematics Transceiver

PROCEDURE


  1. INSPECT TELEMATICS TRANSCEIVER


    1. B006OJ6C45
      *a

      Component with harness connected

      (Telematics Transceiver)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      M1-17 (MUTE) - Body ground

      Engine switch on (ACC)

      Audio system playing

      → Emergency call mode

      2.0 V or higher

      → Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)


    1. Disconnect the F37 radio and display receiver assembly connector.

    2. Disconnect the M1 telematics transceiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F37-8 (TMUT) - M1-17 (MUTE) Always Below 1 Ω
      F37-8 (TMUT) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Reconnect the F37 radio and display receiver assembly connector.

    2. B006MXDC31
      *a

      Front view of wire harness connector

      (to Telematics Transceiver)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      M1-17 (MUTE) - Body ground Engine switch on (ACC) 2.0 V or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE TELEMATICS TRANSCEIVER Click here

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here