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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> 44 - Wheels, Tires, Suspension Alignment -- 911 CARRERA (991) >> WM 449503 Suspension Alignment, Complete (Except CARRERA, CARRERA "Edition", CARRERA Cabriolet "Edition", CARRERA 4 "Edition", CARRERA 4 Cabriolet "Edition", Gt3, Gt3 RS) >> Subsequent Work

Subsequent Work

WARNING: Steering-angle sensor not calibrated or calibrated incorrectly
  • Unexpected vehicle handling
  • Steering-angle sensor does not function
  • Malfunction in steering-angle sensor

→ After working on wheel suspension parts, when replacing the steering-angle sensor and after changing the wheel alignment values, calibrate the steering-angle sensor using PIWIS Tester II 9818  .

→ Keep the front wheels in straight-ahead position on the measuring platform during calibration.

→ On vehicles with electromechanical steering, also re-teach the electric steering lock settings.

  1. The steering angle sensor must be calibrated if the previous wheel alignment values (on rear and/or front axle) have been changed.

    → 456005 INITIALIZING AND CALIBRATING STEERING ANGLE SENSOR .

    In addition, calibrate the ACC sensor control unit and front camera (if fitted).

    → 278515 ADJUSTING THE ACC SENSOR CONTROL UNIT

    → 9638K2 CALIBRATE THE FRONT CAMERA .

  2. Once you have calibrated the steering-angle sensor, re-teach the electric steering lock settings with the engine running.

    In each phase, turn the steering wheel fully to the right and then to the left and hold it at full lock for a short time (note the tester instructions).