Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus ES 330. 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)
1. Turn the ignition switch to the LOCK position.
2. Disconnect the connector (Y1) from the yaw rate sensor.
3. Measure the resistance according to the value(s) in Fig 2 below.
  
  Fig 1: Identifying Connector Terminals Of Yaw Rate Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 2: Yaw Rate Sensor Tester Connection Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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)
1. Measure the resistance according to the value(s) in Fig 4 below.
  
  Fig 3: Identifying Connector Terminals Of Yaw Rate Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 4: Wire Harness Tester Connection Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the figure Fig 5 below.
  Standard:
  
  Fig 5: Wire Harness Tester Connection Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE YAW RATE SENSOR (SEE REPLACEMENT )