NAVIGATION SYSTEM (for HDD) Sound Signal Circuit between Multi-media Interface ECU and Stereo Jack Adapter

DESCRIPTION

The No. 1 stereo jack adapter assembly sends an external device sound signal to the multi-media interface ECU via 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, navigation receiver assembly or speakers.

WIRING DIAGRAM

A017BKBE03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA INTERFACE ECU - NO. 1 STEREO JACK ADAPTER)


    1. A017G9NE09

      Disconnect the E28 multi-media interface ECU connector.

    2. A017E0LE20

      Disconnect the E27 No. 1 stereo jack adapter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E27-3 (UDO+) - E28-2 (UDI+) Always Below 1 Ω
      E27-2 (UDO-) - E28-3 (UDI-) Always Below 1 Ω
      E27-5 (UJSS) - E28-5 (UESS) Always Below 1 Ω
      E27-3 (UDO+) - Body ground Always 10 kΩ or higher
      E27-2 (UDO-) - Body ground Always 10 kΩ or higher
      E27-5 (UJSS) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Multi-media Interface ECU)
      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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