Data Signal Circuit between Radio Receiver and Stereo Jack Adapter: Procedure

1. Disconnect the E16 radio and display receiver assembly connector.
2. Disconnect the E15 No. 1 stereo jack adapter assembly connector.
3. Measure the resistance according to the value(s) in the table below.
   Fig 1: Measuring Resistance Of Radio & Display Receiver Assembly - No. 1 Stereo Jack Adapter Assembly Harness & Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E16-2 (US1-) - E15-2 (UDO-)	Always	Below 1 Ω
   E16-3 (US1+) - E15-3 (UDO+)	Always	Below 1 Ω
   E16-5 (USG1) - E15-5 (UJSS)	Always	Below 1 Ω
   E16-2 (US1-) - Body ground	Always	10 kΩ or higher
   E16-3 (US1+) - Body ground	Always	10 kΩ or higher
   E16-5 (USG1) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Radio and Display 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