Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CAN BUS LINE FOR DISCONNECTION (YAW RATE SENSOR SUB BUS LINE)

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

Measure the resistance according to the value(s) in TESTER CONNECTION SPECIFIED VALUE .

Standard resistance

TESTER CONNECTION SPECIFIED VALUE

Tester Connection	Condition	Specified Value
Y1-2 (CANH) - Y1-3 (CANL)	Ignition switch OFF Stop light switch OFF	54 to 69 ohms

Fig 1: Identifying Yaw Rate Sensor Connector Terminal (Y1-2 (CANH) - Y1-3 (CANL))

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NG: REPAIR OR REPLACE YAW RATE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)

OK: Go to Next Step

CHECK WIRE HARNESS (IG, GND)

Measure the resistance according to the value(s) in TESTER CONNECTION SPECIFIED VALUE .

Standard resistance

TESTER CONNECTION SPECIFIED VALUE

Tester Connection	Condition	Specified Value
Y1-1 (GND) - Body ground	Always	Below 1 ohms

Measure the voltage according to the value(s) in TESTER CONNECTION SPECIFIED VALUE .

Standard Voltage

TESTER CONNECTION SPECIFIED VALUE

Tester Connection	Condition	Specified Value
Y1-5 (IG) - Body ground	Ignition switch ON Stop light switch OFF	10 to 14 V

Fig 2: Identifying Yaw Rate Sensor Connector Terminal (Y1-5 (IG) - Body Ground)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE YAW RATE SENSOR