Data Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter: Procedure

1. Disconnect the J127 multi-media module receiver assembly connector.
2. Disconnect the z7 No. 1 stereo jack adapter assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J127-2 (US1-) - z7-2 (UDO-)	Always	Below 1 Ω
   J127-3 (US1+) - z7-3 (UDO+)	Always	Below 1 Ω
   J127-5 (USG1) - z7-5 (UJSS)	Always	Below 1 Ω
   J127-2 (US1-) - Body ground	Always	10 kΩ or higher
   J127-3 (US1+) - Body ground	Always	10 kΩ or higher
   J127-5 (USG1) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Multi-media Module Receiver Assembly)
   *b	Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   2