Inspection Procedure

1. Disconnect the stereo component amplifier connectors.
   Fig 1: Identifying Stereo Component Amplifier Connectors S27 & S29

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

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION TABLE
   
   

   Tester connection	Condition	Specified condition
   GND - Body ground	Always	Below 1 Ω
   GND2 - Body ground (*2)	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 ((1))	Always	10 to 14 V
   +B - GND ((2))	Always	10 to 14 V
   +B2 - GND ((2))	Always	10 to 14 V
   ACC - GND	Ignition switch in the ACC position	10 to 14 V
   (1) with Front Center Speaker (2) without Front Center Speaker

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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