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Steering Angle Sensor Communication Stop Mode: Procedure

  1. CHECK CAN BUS LINE FOR DISCONNECTION (STEERING SENSOR BRANCH WIRE) 
    1. Turn the ignition switch off.
      Fig 1: Identifying Steering Angle Sensor Connector Terminals (1 Of 2)
      GTY159017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the F33 steering sensor connector.
    3. Measure the resistance according to the value in the table below.

      Standard resistance

      Tester Connection Switch Condition Specified Condition
      F33-3 (CANH) - F33-2 (CANL) Ignition Switch off 54 to 69 Ω
    4. Reconnect the steering sensor connector.

    NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEERING SENSOR (CAN-H, CAN-L) 

    OK: Refer to next step 

  2. CHECK HARNESS AND CONNECTOR (IG, ESS) 
    1. Disconnect the F33 steering sensor connector.
      Fig 2: Steering Angle Sensor Connector Terminals Identification(2 Of 2)
      GTY163339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      F33-1 (ESS) - Body ground Always Below 1Ω
    3. Measure the voltage according to the value in the table below.

      Standard voltage

      Tester Connection Switch Condition Specified Condition
      F33-4 (IG) - Body ground Ignition switch on 11 to 14V
    4. Reconnect the steering sensor connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → Refer to step   3 

  3. REPLACE STEERING SENSOR. Refer to  REMOVAL 
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