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 according to the value(s) in the table below.

   Standard resistance 

   STANDARD RESISTANCE SPECIFICATIONS
   
   

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

   Standard voltage 

   STANDARD VOLTAGE SPECIFICATIONS
   
   

   Tester Connection	Condition	Specified Condition
   K46-1 (+B1) - Body ground	Always	11 to 14 V
   K46-2 (ACC) - Body ground	Engine switch on (ACC)	11 to 14 V
   K46-3 (IG) - Body ground	Engine switch on (IG)	11 to 14 V

Fig 1: Identifying K46 Display Connector Terminals

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NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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