AUDIO AND VISUAL SYSTEM (w/ Navigation System) Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

The No. 1 stereo jack adapter assembly sends an external device sound signal to the radio receiver assembly through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier assembly or radio receiver assembly, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly or speakers.

WIRING DIAGRAM

A0099YQE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (NO. 1 STEREO JACK ADAPTER - RADIO RECEIVER)


    1. Disconnect the H39 No. 1 stereo jack adapter assembly connector.

    2. Disconnect the H1 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H39-8 (AUXO) - H1-5 (AUXI) Always Below 1 Ω
      H39-7 (ASGN) - H1-21 (ASGN) Always Below 1 Ω
      H39-5 (ARO) - H1-19 (ARI) Always Below 1 Ω
      H39-6 (ALO) - H1-20 (ALI) Always Below 1 Ω
      H39-9 (AGND) - H1-6 (AGND) Always Below 1 Ω
      H39-8 (AUXO) - Body ground Always 10 kΩ or higher
      H39-7 (ASGN) - Body ground Always 10 kΩ or higher
      H39-5 (ARO) - Body ground Always 10 kΩ or higher
      H39-6 (ALO) - Body ground Always 10 kΩ or higher
      H39-9 (AGND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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