NAVIGATION SYSTEM Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

DESCRIPTION

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

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

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

   
   
   1. 

      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 navigation ECU sub-assembly connector.

   2. Disconnect the 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 I147-2 (US1-) - I146-2 (UDO-) Always Below 1 Ω I147-3 (US1+) - I146-3 (UDO+) Always Below 1 Ω I147-5 (USG1) - I146-5 (UJSS) Always Below 1 Ω I147-2 (US1-) - Body ground Always 10 kΩ or higher I147-3 (US1+) - Body ground Always 10 kΩ or higher I147-5 (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