ECU Power Source Circuit [12/2015 - 11/2017]: Procedure

1. Disconnect the driving support ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A44-30 (B) - Body ground	Ignition switch ON	11 to 14 V

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A44-25 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Driving Support ECU)

Result: 

OK 

PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [12/2015 - 08/2016] , or refer to PROBLEM SYMPTOMS TABLE [08/2016 - 11/2017] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR