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Steering Angle Sensor Communication Stop Mode: Procedure

  1. CHECK FOR OPEN IN CAN NO. 1 BUS WIRE (STEERING ANGLE SENSOR BRANCH WIRE) 
    1. Turn the engine switch off.
    2. Disconnect the steering angle sensor connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 1: Disconnecting Steering Angle Sensor Connector
      GTY155314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Condition Specified Value
      E31-10 (CANH) - E31-9 (CANL) Engine switch off 54 to 69 Ω

    NG → REPAIR OR REPLACE CAN NO. 1 BUS BRANCH WIRE OR CONNECTOR (STEERING ANGLE SENSOR) 

    OK: Go to next step 

  2. CHECK WIRE HARNESS (IG, ESS) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying Steering Angle Sensor Connector Terminals
      GTY155315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Condition Specified Value
      E31-2 (ESS) - Body ground Always Below 1 Ω
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Condition Specified Value
      E31-1 (IG) - Body ground Engine switch on (IG) 10 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   3 

  3. REPLACE STEERING ANGLE SENSOR. Refer to  REMOVAL 
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