Clearance Warning ECU Communication Stop Mode [11/2017 - 08/2018]: Procedure

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D200-17 (R1) - D200-18 (R2)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (R1, R2) 

Result: 

OK 

See step  2

1. Disconnect the clearance warning ECU assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front 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
   D200-30 (E) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

3. Reconnect the cable to the negative (-) battery terminal.
   NOTE:

   When connecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [11/2017 - ] ).

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   D200-1 (IG) - Body ground	Ignition switch ON	11 to 14 V

Result: 

OK 

REPLACE CLEARANCE WARNING ECU ASSEMBLY 

(Refer to REMOVAL [11/2017 - ] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR