C0497Yaw Rate Sensor Range/Performance
- Generic OBD-II code · Chassis
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Neither the accessible J2012 lists nor any manufacturer bulletin or service text mention C0497, so its use cannot be confirmed publicly. The title describes a yaw rate signal that is electrically present but does not match how the car moves. Stability units test this against estimates: a Siemens patent builds a reference yaw rate from steering angle, wheel speeds and accelerations, expects a value near zero at standstill and marks the sensor faulty when the gap passes a threshold. A Ford patent turns yaw rate and lateral acceleration into two road-bank estimates and counts a yaw fault when one exceeds a limit taken from the other, then disables brake control. A Linköping thesis for ZF tried such residual checks with injected faults. Saab gives a ±138°/s test range.
- What you may notice
- ESC lamp on, stability control switched off
- Unwanted brake interventions when cornering
- Likely causes
- LikelyYaw rate sensor offset or drift
- PossibleSensor loose, twisted or mounted in the wrong orientation
- RareWrong comparison input (steering angle not calibrated, wheel speed fault)
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.