NAVIGATION SYSTEM 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 radio receiver assembly via this circuit.

WIRING DIAGRAM

PROCEDURE

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

   
   

   1. Disconnect the H164 radio receiver assembly connector (for LHD).

      Disconnect the H172 radio receiver assembly connector (for RHD).

   2. Disconnect the H176 No. 1 stereo jack adapter assembly connector.

   3. 

      *A	for LHD
      *B	for RHD
      *a	Front view of wire harness connector (to Radio 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
      for LHD Tester Connection Condition Specified Condition H164-2 (US1-) - H176-2 (US1-) Always Below 1 Ω H164-3 (US1+) - H176-3 (US1+) Always Below 1 Ω H164-5 (USG1) - H176-5 (USG1) Always Below 1 Ω H164-2 (US1-) or H176-2 (US1-) - Body ground Always 10 kΩ or higher H164-3 (US1+) or H176-3 (US1+) - Body ground Always 10 kΩ or higher H164-5 (USG1) or H176-5 (USG1) - Body ground Always 10 kΩ or higher
      for RHD Tester Connection Condition Specified Condition H172-2 (US1-) - H176-2 (US1-) Always Below 1 Ω H172-3 (US1+) - H176-3 (US1+) Always Below 1 Ω H172-5 (USG1) - H176-5 (USG1) Always Below 1 Ω H172-2 (US1-) or H176-2 (US1-) - Body ground Always 10 kΩ or higher H172-3 (US1+) or H176-3 (US1+) - Body ground Always 10 kΩ or higher H172-5 (USG1) or H176-5 (USG1) - 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