Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier (To 8/2009): Procedure

1. Disconnect the radio receiver assembly and stereo component amplifier assembly connectors.
   Fig 1: Identifying G7 & O33 Connector

   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
   G7-9 (L+) - O33-3 (L+)	Always	Below 1 Ω
   G7-19 (L-) - O33-2 (L-)	Always	Below 1 Ω
   G7-8 (R+) - O33-5 (R+)	Always	Below 1 Ω
   G7-18 (R-) - O33-4 (R-)	Always	Below 1 Ω
   G7-9 (L+) - Body ground	Always	10 kΩ or higher
   G7-19 (L-) - Body ground	Always	10 kΩ or higher
   G7-8 (R+) - Body ground	Always	10 kΩ or higher
   G7-18 (R-) - Body ground	Always	10 kΩ or higher
   G7-10 (SLD) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Radio Receiver Assembly)
   *2	Front view of wire harness connector (to Stereo Component Amplifier Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   2