Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

CHECK OPEN IN CAN BUS WIRE (YAW RATE SENSOR BRANCH WIRE)

Turn the ignition switch to the LOCK position.
Disconnect the yaw rate sensor connector (Y1) from the yaw rate sensor.

Measure the resistance according to the value in the table below.

Standard resistance

RESISTANCE SPECIFICATION TABLE

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

Fig 1: Identifying Yaw Rate Sensor Connector Terminals

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

OK: Go to Next Step

CHECK WIRE HARNESS (IG, GND)

Measure the resistance according to the value in the table below.

Standard resistance

RESISTANCE SPECIFICATION TABLE

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

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

Standard voltage

VOLTAGE SPECIFICATION TABLE

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

Fig 2: Identifying Yaw Rate Sensor Connector Terminals

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE YAW RATE SENSOR