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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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 the table below.

      Standard: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value
      Y1-2 (CANL) - Y1-3 (CANH) Ignition SW OFF 54 to 69 Ω
      Fig 1: Identifying Yaw Rate Sensor Connector Terminals
      G02909855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE YAW RATE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 
    2. OK: GO TO NEXT STEP. 
  2. CHECK WIRE HARNESS (IG,GND) 
    1. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value
      Y1-1 (GND) - Body ground Always Below 1 Ω
    2. Measure the voltage according to the value (s) in the table below.

      Standard: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value
      Y1-5 (IG) - Body ground Ignition SW ON 10 to 14 V
      Fig 2: Checking Check Wire Harness (IG,GND)
      G02909856Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE YAW RATE SENSOR (See  REPLACEMENT  )