Inspection Procedure

1. Disconnect the connectors from the navigation receiver assembly and stereo component amplifier.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   L+ - L+	Always	Below 1 Ω
   L- -L-	Always	Below 1 Ω
   R+ - R+	Always	Below 1 Ω
   R- - R-	Always	Below 1 Ω
   SLD - Body ground	Always	10 kΩ or higher
   L+ - Body ground	Always	10 kΩ or higher
   L- - Body ground	Always	10 kΩ or higher
   R+ - Body ground	Always	10 kΩ or higher
   R- - Body ground	Always	10 kΩ or higher

Fig 1: Identifying Navigation Receiver Assembly And Stereo Component Amplifier Connectors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE