Inspection Procedure

1. Disconnect the K13 ECU connector.
2. Measure the voltage of the wire harness side connector.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   K13-1 (B) - Body ground	Power switch ON (IG)	10 to 14 V

3. Measure the resistance of the wire harness side connector.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   K13-10 (SGND) - Body ground	Below 1 Ω
   K13-12 (GND) - Body ground	Below 1 Ω

   Fig 1: Identifying K13 ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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