Blind Spot Monitor Sensor Communication Stop Mode [11/2017 - ]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the U47 blind spot monitor sensor LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Blind Spot Monitor Sensor LH)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   U47-2 (CA1P) - U47-7 (CA1N)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

   Result

   Result
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (BLIND SPOT MONITOR SENSOR LH) 

Result: 

OK 

See step  2

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Blind Spot Monitor Sensor LH)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   U47-10 (BLGD) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   U47-5 (BLB) - Body ground	Engine switch on (IG)	11 to 14 V

   Result

   Result
   OK
   NG

Result: 

OK 

REPLACE BLIND SPOT MONITOR SENSOR LH. Refer to  REMOVAL [09/2014 - 10/2018]  , or refer to  REMOVAL [10/2018 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)