Clearance Warning ECU Power Source Circuit [11/2018 - ]: Procedure

1. Disconnect the clearance warning ECU assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Rear view of wire harness connector (to Clearance Warning ECU Assembly)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A29-30 (E) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   A29-1 (IG) - Body ground	Power switch on (IG)	11 to 14 V
   A29-1 (IG) - Body ground	Power switch off	Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2018 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR