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DTC C1290: Steering Angle Sensor Zero Point Malfunction: Procedure

WARNING: This page is about a different car, the 2009 Lexus IS 350 and 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR 
    1. Perform zero point calibration of the yaw rate and acceleration sensor. Refer to CALIBRATION .

      HINT: 

      • When the stored zero point of the yaw rate and acceleration sensor is cleared, steering angle sensor zero point will also be cleared.
      • If the zero point and output value of the yaw rate and acceleration sensor and the output value of the speed sensors are not normal, steering angle sensor zero point cannot be acquired normally even if the vehicle is driven straight ahead at 35 km/h (22 mph) or more.

    NEXT: Go to next step 

  2. CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION 
    1. Turn the engine switch off.
    2. Start the engine.
    3. Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds.
    4. Check that the center position of the steering wheel is correctly set while driving straight ahead.

      HINT: 

      If front wheel alignment and steering position are adjusted as a result of an abnormal center position of the steering wheel, acquire yaw rate and acceleration sensor zero point again after adjusting front wheel alignment and steering position again.

      OK

      The center position of the steering wheel is correctly set.

    NG → See step   4 

    OK: Go to next step 

  3. RECONFIRM DTC 
    1. Turn the engine switch off.
    2. Clear the DTCs. Refer to DTC CHECK / CLEAR .
    3. Start the engine.
    4. Drive the vehicle and turn the steering wheel to the right and left at a speed of 35 km/h (22 mph) or more.
    5. Check if the same DTC is recorded. Refer to DTC CHECK / CLEAR .

      Result

      Result Proceed to
      DTC (C1290) is not output A
      DTC (C1290) is output B

      HINT: 

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

    B → See step   5 

    A → END 

  4. ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION. Refer to  ADJUSTMENT 
  5. REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL