Inspection Procedure

1. Disconnect the radio and navigation assembly connector R13 and stereo component amplifier connector S11.
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
   IVO+ - INT+	Always	Below 1 Ω
   IVO- - INT-	Always	Below 1 Ω
   IVO+ - Body ground	Always	10 kΩ or higher
   IVO- - Body ground	Always	10 kΩ or higher

Fig 1: Identifying Radio And Navigation Assembly Connector R13 And Stereo Component Amplifier Connector S11
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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