C052ASteering Angle Sensor Module Correlation
- Generic OBD-II code · Chassis
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- The steering angle sensor module reports wheel angle and turn rate to the stability control unit, which cross-checks that value against an independent estimate. Correlation means the reading and the estimate disagree for longer than the calibrated window; the signal itself is present. A Bosch patent derives a model yaw rate from the angle and the left/right wheel-speed difference, and a Ford patent lets the ESC unit judge an angle supplied by electric power steering from yaw rate, wheel speeds and lateral acceleration, switching ESC off with a warning lamp if the check fails. No manufacturer documents this exact code publicly. Typical triggers are an offset after an alignment or steering repair and an internal module fault. Unlike C0528 or C0529, the sensor may look sane on its own.
- What you may notice
- ESC or traction control warning lamp on
- Stability control switched off or intervening at the wrong moment
- Steering wheel off-centre when driving straight
- Likely causes
- LikelyAngle offset after wheel alignment or steering work without zero-point adjustment
- PossibleInternal fault in the steering angle sensor module
- RareFaulty comparison signal (yaw rate, wheel speed or steering angle from power steering)
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.