C0805Steering Angle Sensor Calibration
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Public evidence for C0805 is lacking: it appears neither in code lists nor in the NHTSA index, GM's keyword table or the Saab and Mitsubishi indexes. The title describes a steering angle sensor whose zero point has not been learned. GM files exactly that fault elsewhere: in both 2011 Saab models, 9-5 and 9-4X, the brake module stores C0710 subcode 42 when the sensor reports no calibration, then switches off ESC and the hill holder until the next ignition cycle. Stellantis uses the J2012 code C0529 for the same condition on the ProMaster and advises an initialisation first, by turning lock to lock with the engine running or by scan tool, before any steering gear is replaced. The bulletin names a battery disconnect or a new steering gear as typical triggers for a fresh learn.
- What you may notice
- Stability or traction control lamp stays on
- ESC and hill start assist unavailable
- Likely causes
- LikelyZero point not learned after battery disconnect or steering gear replacement
- PossibleSteering wheel or sensor mounted off centre, so the learned offset is out of range
- RareSteering angle sensor defective and unable to store the calibration
- Repair
- Easy · Usually a job for a workshop.Typical cost: €30 – €150
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.