Inspection Procedure

1. Disconnect the stereo component amplifier S13 and S14 connectors.
2. Measure the resistance according to the values in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   GND (S13-16) - Body ground	Always	Below 1 Ω
   GND2 (S13-15) - Body ground	Always	Below 1 Ω

   Fig 1: Disconnecting Stereo Component Amplifier S13 And S14 Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the voltage according to the values in the table below.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   B+ (S13-1) - GND (S13-15)	Always	10 to 14 V
   B2+ (S13-10) - GND (S13-15)	Always	10 to 14 V
   ACC (S14-12) - GND (S13-15)	Ignition SW ACC	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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