NAVIGATION SYSTEM (for Radio and Display Type) 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 and display receiver assembly via this circuit.

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*1, radio and display receiver assembly, extension module or speakers.


WIRING DIAGRAM

A0043ZHE18

INSPECTION PROCEDURE

PROCEDURE


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


    1. Disconnect the L107 radio and display receiver assembly connector.

    2. Disconnect the L111 No. 1 stereo jack adapter assembly connector.

    3. A0041NXE36
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)
      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L107-25 (ADPG) - L111-9 (AUXO) Always Below 1 Ω
      L107-11 (AGND) - L111-10 (AGND) Always Below 1 Ω
      L107-26 (VAR+) - L111-6 (ARO) Always Below 1 Ω
      L107-28 (VAL+) - L111-7 (ALO) Always Below 1 Ω
      L107-27 (VA-) - L111-8 (ASGN) Always Below 1 Ω
      L107-25 (ADPG) - Body ground Always 10 kΩ or higher
      L107-11 (AGND) - Body ground Always 10 kΩ or higher
      L107-26 (VAR+) - Body ground Always 10 kΩ or higher
      L107-28 (VAL+) - Body ground Always 10 kΩ or higher
      L107-27 (VA-) - 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