Chassis, generic

C0529 Steering Angle Sensor Module Missing Calibration

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

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.

Likely causes

Calibration lost after battery disconnection or steering while switched off
Initialisation skipped after steering gear, sensor or alignment work
EPS software losing the calibration (Stellantis 2023–2024)

Symptoms

  • 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

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–150
Time0.1–0.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

steering angle sensor module

Related codes

C0526C0527C0528C052AC0445

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, saabwisonline.com.