Inspection Procedure

1. Disconnect the radio receiver connector.
2. Measure the resistance according to the value in the table below.

   Standard Resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   J66-20 (GND) - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the values in the table below
   Fig 1: Identifying Radio Receiver Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   J66-1 (B) - J66-20 (GND)	Always	11 to 14 V
   J66-11 (ACC) - J66-20 (GND)	Engine switch on (ACC)	11 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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