Clearance Warning ECU Communication Stop Mode (2016 - 2017): Procedure

1. Disconnect the cable from the negative (-) auxiliary battery terminal.
2. Disconnect the H61 clearance warning ECU assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H61-17 (R1) - H61-18 (R2)	Cable disconnected from negative (-) auxiliary battery terminal	54 to 69 Ω

   TEXT IN ILLUSTRATION
   
   

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

Result:  NG

NG 

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY) 

Result:  OK

See step  2

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H61-27 (E) - Body ground	Cable disconnected from negative (-) auxiliary battery terminal	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

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

2. Connect the cable to the negative (-) auxiliary battery terminal.
3. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H61-12 (IG) - Body ground	Power switch on (IG)	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

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

Result:  OK

OK 

REPLACE CLEARANCE WARNING ECU ASSEMBLY 

(efer to REMOVAL (2016 - 2017) )

Result:  NG

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)