Inspection Procedure

1. Disconnect the A19 ECU connector.
Fig 1: Identifying A19 ECU And DLC3 Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E13-4 (CG) - Body ground	Below 1 Ω
   E13-12 (TS) - A19-24 (TS)	Below 1 Ω
   A19-24 (TS) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY