NAVIGATION SYSTEM (for Navigation Receiver Type) Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

DESCRIPTION

The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the navigation ECU sub-assembly via this circuit.

WIRING DIAGRAM

A00439IE74

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)


    1. A0044BNE42
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Navigation ECU Sub-assembly)
      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

      Disconnect the L112 navigation ECU sub-assembly connector.

    2. Disconnect the L111 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
      L112-2 (US1-) - L111-2 (UDO-) Always Below 1 Ω
      L112-3 (US1+) - L111-3 (UDO+) Always Below 1 Ω
      L112-5 (USG1) - L111-5 (UJSS) Always Below 1 Ω
      L112-2 (US1-) - Body ground Always 10 kΩ or higher
      L112-3 (US1+) - Body ground Always 10 kΩ or higher
      L112-5 (USG1) - 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