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Inspection Procedure

NOTE: Turn the ignition switch off before measuring the resistances of CAN bus main wires and CAN bus branch wires.
  1. CHECK OPEN IN CAN BUS WIRE (YAW RATE SENSOR BRANCH WIRE) 
    1. Turn the ignition switch off.
    2. Disconnect the yaw rate sensor connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Condition Specified Condition
      Y1-3 (CANH) - Y1-2 (CANL) Ignition switch off 54 to 69 Ω
      Fig 1: Identifying Terminal CANL And CANH Of Y1 Connector
      G05576493Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE YAW RATE SENSOR BRANCH WIRE OR CONNECTOR 

    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 resistance 

      RESISTANCE SPECIFIED CONDITIONS

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

      Standard voltage 

      VOLTAGE SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      Y1-5 (IG) - Body ground Ignition switch ON 10 to 14 V
      Fig 2: Identifying IG And GND Terminal Of Y1 Connector
      G05576494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE YAW RATE SENSOR  (See REMOVAL )

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