Inspection Procedure

1. Disconnect the RAD NO. 1 fuse from the No. 2 relay block.
2. Disconnect the ACC fuse from the instrument panel junction block.
3. Measure the resistance of the fuses.

   Standard resistance: Below 1 Ω 

NG: REPLACE FUSE 

OK: Go TO NEXT STEP. 

1. Disconnect the E47*2 or E62*1 receiver connector.
   Fig 1: Identifying E47 & E62 Connectors Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage and resistance of the wire harness side connector.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   E62-1 (B) - Body ground*1	Always	10 to 14 V
   E62-11 (ACC) - Body ground*1	Ignition switch ACC	10 to 14 V
   E47-4 (B) - Body ground*2	Always	10 to 14 V
   E47-3 (ACC) - Body ground*2	Ignition switch ACC	10 to 14 V

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E62-20 (GND) - Body ground*1	Below 1 Ω
   E47-7 (GND) - Body ground*2	Below 1 Ω

   HINT:

   *1: for Premium sound models

   *2: for Standard models

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

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