NAVIGATION SYSTEM(for Navigation Receiver Type) Mute Signal Circuit between Navigation Receiver Assembly and Television Display Assembly

DESCRIPTION

The navigation receiver assembly controls the volume according to the mute signal from the television display assembly.

The mute signal is sent to reduce noise and popping sounds such as those generated when switching modes. If there is an open in the circuit, noise can be heard from the speakers when changing the sound source. If there is a short in the circuit, even though the navigation receiver assembly is functioning normally, no sound or only an extremely faint sound can be heard.

WIRING DIAGRAM

B006P9CE67
*1 MUTE
*2 Television Display Assembly
*3 Navigation Receiver Assembly

CAUTION / NOTICE / HINT

Note

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

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PROCEDURE


  1. INSPECT TELEVISION DISPLAY ASSEMBLY


    1. B006KR3C01
      *a

      Component with harness connected

      (Stereo Component Amplifier Assembly)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      S36-6 (MUT1) - Body ground

      Engine switch on (ACC), RSE

      system playing

      → Changing modes

      3.5 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 (NAVIGATION RECEIVER ASSEMBLY - TELEVISION DISPLAY ASSEMBLY)


    1. Disconnect the F5 navigation receiver assembly connector.

    2. Disconnect the S36 television display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F5-8 (MUTE) - S36-6 (MUT1) Always Below 1 Ω
      F5-8 (MUTE) or S36-6 (MUT1) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE TELEVISION DISPLAY ASSEMBLY


    1. Replace the television display assembly.

      Click here

      OK
      Navigation system is normal.

    2. Check that the navigation system is normal.

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here