AUDIO AND VISUAL SYSTEM(w/o Multi-display) Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier

DTC Code DTC Name
Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier

DESCRIPTION

The radio receiver assembly sends a sound signal to the stereo component amplifier assembly through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier 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 or speakers.

WIRING DIAGRAM

E187093E07

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER)

    1. Disconnect the H29 radio receiver assembly connector.

    2. Disconnect the H25 stereo component amplifier assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H29-9 (L+) - H25-3 (L+)

      Always

      Below 1 Ω

      H29-19 (L-) - H25-2 (L-)

      Always

      Below 1 Ω

      H29-8 (R+) - H25-5 (R+)

      Always

      Below 1 Ω

      H29-18 (R-) - H25-4 (R-)

      Always

      Below 1 Ω

      H29-10 (SLD) - Body ground

      Always

      10 kΩ or higher

      H29-9 (L+) - Body ground

      Always

      10 kΩ or higher

      H29-19 (L-) - Body ground

      Always

      10 kΩ or higher

      H29-8 (R+) - Body ground

      Always

      10 kΩ or higher

      H29-18 (R-) - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR