Inspection Procedure

1. Disconnect the K54 receiver connector.
2. Disconnect the U29 amplifier connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   U29-3 (L+) - K54-9 (L+)	Below 1 Ω
   U29-2 (L-) - K54-19 (L-)	Below 1 Ω
   U29-5 (R+) - K54-8 (R+)	Below 1 Ω
   U29-4 (R-) - K54-18 (R+)	Below 1 Ω
   U29-3 (L+) - Body ground	10 kΩ or higher
   U29-2 (L-) - Body ground	10 kΩ or higher
   U29-5 (R+) - Body ground	10 kΩ or higher
   U29-4 (R-) - Body ground	10 kΩ or higher

Fig 1: Disconnecting K54 Receiver Connector And U29 Amplifier Connector

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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