Sound Signal Circuit between Multi-media Interface ECU and Stereo Jack Adapter: Procedure

1. Disconnect the multi-media interface ECU and No. 1 stereo jack adapter assembly connectors.
   Fig 1: Checking Harness And Connector (Multi-Media Interface ECU - No. 1 Stereo Jack Adapter Assembly)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E36-3 (UDO+) - E37-2 (UDI+)	Always	Below 1 Ω
   E36-2 (UDO-) - E37-3 (UDI-)	Always	Below 1 Ω
   E36-5 (UJSS) - E37-5 (UESS)	Always	Below 1 Ω
   E36-3 (UDO+) - Body ground	Always	10 kΩ or higher
   E36-2 (UDO-) - Body ground	Always	10 kΩ or higher
   E36-5 (UJSS) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   2