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Home >> Lexus >> 2007 >> RX 350 FWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Vehicle Stability Control System >> DTC C1231/31: Steering Angle Sensor Circuit Malfunction >> Inspection Procedure

Inspection Procedure

  1. CHECK TERMINAL VOLTAGE (STEERING ANGLE SENSOR CONNECTOR) 
    1. Remove the steering wheel and the column lower cover.
    2. Disconnect the steering angle sensor connector.
    3. Turn the ignition switch to the ON position.
    4. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION TABLE (1 OF 2)

      Tester Connection Specified Condition
      S10-1 (IG) - S10-2 (ESS) 10 to 14 V
    5. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION TABLE (2 OF 2)

      Tester Connection Specified Condition
      S10-3 (BAT) - S10-2 (ESS) 10 to 14 V
      Fig 1: Identifying Terminal Voltage (Steering Angle Sensor Connector)
      G05272709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE STEERING ANGLE SENSOR  (See REMOVAL  )