Inspection Procedure

1. Disconnect the E13 DLC3 connector.
2. Disconnect the A9 ECM connector.
3. Measure the resistance of the wire harness side connectors.
   Fig 1: Identifying E13 DLC3 & A9 ECM Harness Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E13-13 (TC) - A9-27 (TC)	Below 1 Ω
   E13-4 (CG) - Body ground

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE ECM