Distance Control ECU Power Source Circuit: Procedure

Fig 1: View Of Distance Control ECU Wire Harness Side Connector Front

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the distance control ECU connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage

   Tester Connection	Condition	Specified Condition
   J17-1 (B) - Body ground	Engine switch on (IG)	10 to 14 V

3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   J17-10 (SGND) - Body ground	Always	Below 1 Ω
   J17-12 (GND) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE