Yaw Rate Sensor Communication Stop Mode: Procedure

1. Turn the ignition switch to the LOCK position.
2. Disconnect the yaw rate sensor connector (Y1) from the yaw rate sensor.
3. Measure the resistance according to the value in the table below.
   Fig 1: Identifying Yaw Rate Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester connection	Condition	Specified value
   Y1-2 (CANL) - Y1-3 (CANH)	Ignition switch off	54 to 69 Ω

NG → REPAIR OR REPLACE YAW RATE SENSOR BRANCH WIRE OR CONNECTOR (CAN-H, CAN-L) 

OK: Go to next step 

1. Measure the resistance according to the value in the table below.
   Fig 2: Checking Wire Harness (IG, GND)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester connection	Condition	Specified value
   Y1-1 (GND) - Body ground	Always	Below 1 Ω

2. Measure the voltage according to the value in the table below.

   Standard voltage

   Tester connection	Condition	Specified value
   Y1-5 (IG) - Body ground	Ignition switch on	10 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   3