AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

DTC Code DTC Name
Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

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

The sound signal that has been sent is amplified by the 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 radio receiver assembly or speakers.

WIRING DIAGRAM

E238702E09

PROCEDURE

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

    1. Disconnect the E111 and u3 radio receiver assembly connectors.

    2. Disconnect the u1 No. 1 stereo jack adapter assembly connector.

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

      E262654C03

      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      u1-9 (AUXO) - E111-25 (ADPG)

      Always

      Below 1 Ω

      u1-6 (ARO) - E111-26 (VAR+)

      Always

      Below 1 Ω

      u1-7 (ALO) - E111-28 (VAL+)

      Always

      Below 1 Ω

      u1-8 (ASGN) - E111-27 (VA-)

      Always

      Below 1 Ω

      u1-10 (AGND) - E111-11 (AGND)

      Always

      Below 1 Ω

      u1-2 (UDO-) - u3-2 (US1-)

      Always

      Below 1 Ω

      u1-3 (UDO+) - u3-3 (US1+)

      Always

      Below 1 Ω

      u1-5 (UJSS) - u3-5 (USG1)

      Always

      Below 1 Ω

      u1-9 (AUXO) - Body ground

      Always

      10 kΩ or higher

      u1-6 (ARO) - Body ground

      Always

      10 kΩ or higher

      u1-7 (ALO) - Body ground

      Always

      10 kΩ or higher

      u1-8 (ASGN) - Body ground

      Always

      10 kΩ or higher

      u1-10 (AGND) - Body ground

      Always

      10 kΩ or higher

      u1-2 (UDO-) - Body ground

      Always

      10 kΩ or higher

      u1-3 (UDO+) - Body ground

      Always

      10 kΩ or higher

      u1-5 (UJSS) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR