Stereo Component Amplifier Power Source Circuit: Procedure

1. Disconnect the stereo component amplifier connectors.
   Fig 1: Identifying E34, E35 And E36 Stereo Component Amplifier Connectors

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2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E36-6 (GND) - Body ground	Always	Below 1 Ω
   E36-7 (GND2) - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   E35-1 (+B) - E36-6 (GND)	Always	11 to 14 V
   E35-5 (+B2) - E36-6 (GND)	Always	11 to 14 V
   E34-12 (ACC) - E36-6 (GND)	Ignition switch ACC	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   2