Inspection Procedure

1. Disconnect the K47 display connector.
2. Disconnect the U29 amplifier connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance: 

   for CD changer models: 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   K47-22 (IVO+) - U29-15 (II1+)	Below 1 Ω
   K47-21 (IVO-) - U29-14 (II1-)	Below 1 Ω
   K47-22 (IVO+) - Body ground	10 kΩ or higher
   K47-21 (IVO-) - Body ground	10 kΩ or higher

   for DVD changer models: 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   K47-22 (IVO+) - U29-23 (II1+)	Below 1 Ω
   K47-21 (IVO-) - U29-22 (II1-)	Below 1 Ω
   K47-22 (IVO+) - Body ground	10 kΩ or higher
   K47-21 (IVO-) - Body ground	10 kΩ or higher

   Fig 1: Disconnecting K47 Display Connector And U29 Amplifier Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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