Yaw Rate Sensor Communication Stop Mode [02/2014 - 11/2016]: Procedure

1. Disconnect the cable from the negative (-) auxiliary battery terminal.
2. Disconnect the F78 yaw rate sensor assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Yaw Rate Sensor Assembly)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F78-3 (CANH) - F78-2 (CANL)	Cable disconnected from negative (-) auxiliary battery terminal	54 to 69 Ω

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (YAW RATE SENSOR 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

   *a	Front view of wire harness connector (to Yaw Rate Sensor Assembly)

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F78-1 (GND) - Body ground	Cable disconnected from negative (-) auxiliary battery terminal	Below 1 Ω

2. Reconnect 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

   *a	Front view of wire harness connector (to Yaw Rate Sensor Assembly)

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   F78-4 (IG) - Body ground	Power switch ON (IG)	11 to 14 V

Result: 

OK 

REPLACE YAW RATE SENSOR ASSEMBLY. Refer to  REMOVAL [02/2014 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)