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Home >> Lexus >> 2004 >> RX 330 FWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Abs With EBD & BA & TRAC & VSC System - Diagnosis >> DTC C1231/31: Malfunction In Steering Angle Sensor Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK TERMINAL VOLTAGE (STEERING ANGLE SENSOR CONNECTOR) 
  2. Fig 1: Checking Terminal Voltage Of Steering Angle Sensor Connector
    G01396039Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Remove the steering wheel and the column lower cover.
  2. Disconnect the steering angle sensor connector S10.
  3. Turn the ignition switch to the ON position.
  4. Measure the voltage according to the value(s) in Fig 2 .

    Standard: 

    Fig 2: Voltage Standard Table (1 Of 2)
    G01396038Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. Measure the voltage according to the value(s) in Fig 3 .

Standard: 

Fig 3: Voltage Standard Table (2 Of 2)
G01396040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE STEERING ANGLE SENSOR (See  STEERING SENSOR  )