Inspection Procedure

1. Disconnect the ACC and ECU-IG RH fuses from the main body ECU RH.
2. Disconnect the TV fuse from the main body ECU LH.
3. Measure the resistance of the fuses.

   Standard resistance: Below 1 Ω 

NG: REPLACE FUSE 

OK: GO TO Next Step  .

1. Disconnect the K46 display connector.
2. Measure the resistance and voltage of the wire harness side connector.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   K46-10 (GND1) - Body ground	Below 1 Ω

   Standard voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   K46-1 (+B1) - Body ground	Always	10 to 14 V
   K46-2 (ACC) - Body ground	Power switch ON (ACC)	10 to 14 V
   K46-3 (IG) - Body ground	Power switch ON (IG)	10 to 14 V

   Fig 1: Identifying Multi-Display Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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