Data Signal Circuit between Stereo Jack Adapter and Extension Module: Procedure

1. Disconnect the extension module connector.
2. Disconnect the No. 1 stereo jack adapter assembly connector.
3. Measure the resistance according to the value(s) in the table below.
   Fig 1: Extension Module & No. 1 Stereo Jack Adapter Assembly Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G44-2 (UDO-) - G81-2 (US1-)	Always	Below 1 Ω
   G44-3 (UDO+) - G81-3 (US1+)	Always	Below 1 Ω
   G44-5 (UJSS) - G81-5 (USG1)	Always	Below 1 Ω
   G44-2 (UDO-) - Body ground	Always	10 kΩ or higher
   G44-3 (UDO+) - Body ground	Always	10 kΩ or higher
   G44-5 (UJSS) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Extension Module)
   *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