C0529Steering Angle Sensor Module Missing Calibration
- Generic OBD-II code · Chassis
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- C0529 is set when the steering angle sensor module has no valid zero point. Stellantis documents it as C0529-00 on the 2023 Dodge Hornet and the 2023–2024 Alfa Romeo Tonale: if the wheel was turned without assist between key-off and key-on, the calibration was lost and the MIL came on, going out again after a lock-to-lock turn; an EPS software update fixes it (TSB 08-148-23, 08-163-23). For the 2022–2023 Ram ProMaster, an internal note asks for sensor initialisation by turning lock to lock with the engine running, or via wiTECH, after battery disconnection and before any steering gear replacement. Saab and Mitsubishi likewise require a straight-ahead calibration after alignment or sensor replacement.
- What you may notice
- Malfunction indicator lamp on (Stellantis)
- ESC warning lamp on, stability control limited until calibrated
- Lamp goes out after turning the wheel from lock to lock
- Likely causes
- LikelyCalibration lost after battery disconnection or steering while switched off
- PossibleInitialisation skipped after steering gear, sensor or alignment work
- PossibleEPS software losing the calibration (Stellantis 2023–2024)
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €150
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.