Inspection Procedure

1. Disconnect the radio receiver connector R2.
   Fig 1: Identifying Radio Receiver Connector R2

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2. Measure the resistance according to the value in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION TABLE
   
   

   Tester connection	Condition	Specified condition
   GND - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the values in the table below.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION TABLE
   
   

   Tester connection	Condition	Specified condition
   B - GND	Always	10 to 14 V
   ACC - GND	Ignition switch in the ACC position	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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