NAVIGATION SYSTEM (for DVD) Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

DESCRIPTION

The stereo jack adapter sends an external device sound signal to the navigation receiver assembly through this circuit.

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

WIRING DIAGRAM

A003ANWE04

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (STEREO JACK ADAPTER - NAVIGATION RECEIVER)


    1. A003D1DE01

      Disconnect the D38 stereo jack adapter connector.

    2. A003CK7E03

      Disconnect the D24 navigation receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D38-1 (ALO) - D24-17 (ALI) Always Below 1 Ω
      D38-2 (ARO) - D24-15 (ARI) Always Below 1 Ω
      D38-3 (ASGN) - D24-16 (ASGN) Always Below 1 Ω
      D38-4 (AUXO) - D24-19 (AUXI) Always Below 1 Ω
      D38-5 (AGND) - D24-18 (AGND) Always Below 1 Ω
      D38-1 (ALO) - Body ground Always 10 kΩ or higher
      D38-2 (ARO) - Body ground Always 10 kΩ or higher
      D38-3 (ASGN) - Body ground Always 10 kΩ or higher
      D38-4 (AUXO) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *1

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)
      *2

      Front view of wire harness connector

      (to Navigation Receiver Assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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