NAVIGATION SYSTEM(for Radio and Display Type) Data Signal Circuit between Stereo Jack Adapter and Extension Module

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 via this circuit.

WIRING DIAGRAM

A01VABDE04

CAUTION / NOTICE / HINT

Note

Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections.

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PROCEDURE


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


    1. Disconnect the G198*1 or G199*2 navigation ECU connector.


      • *1: for RHD

        *2: for LHD

    2. Disconnect the G145 No. 1 stereo jack adapter assembly connector.

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

      Standard Resistance
      for RHD:
      Tester Connection Condition Specified Condition
      G198-2 (UDO-) - G145-2 (UDO-) Always Below 1 Ω
      G198-3 (UDO+) - G145-3 (UDO+) Always Below 1 Ω
      G198-2 (UDO-) - Body ground Always 10 kΩ or higher
      G198-3 (UDO+) - Body ground Always 10 kΩ or higher
      for LHD:
      Tester Connection Condition Specified Condition
      G199-2 (US1-) - G145-2 (UDO-) Always Below 1 Ω
      G199-3 (US1+) - G145-3 (UDO+) Always Below 1 Ω
      G199-2 (US1-) - Body ground Always 10 kΩ or higher
      G199-3 (US1+) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR