Stereo Component Amplifier Power Source Circuit: Wiring Diagram

1. Disconnect the stereo component amplifier connectors.
2. Measure the resistance according to the values in the table below.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   GND - Body ground	Always	Below 1 Ω
   GND2 - Body ground	Always	Below 1 Ω

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

   Standard voltage 

   TESTER CONNECTION AND SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   +B - GND	Always	10 to 14 V
   +B2 - GND	Always	10 to 14 V
   ACC - GND	Engine switch on (ACC)	10 to 14 V

Fig 2: Identifying Stereo Component Amplifier Connectors Terminal

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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