C0496Yaw Rate Sensor Circuit
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0496 appears in no accessible J2012 list, and neither the NHTSA bulletin index nor the manufacturer portals checked contain it, so the code is not publicly verifiable; the established code with this title is C0196. What the title covers: a micromechanical gyro, usually combined with the lateral accelerometer and mounted near the centre of gravity. The Saab 9-5 unit gets a 50 Hz reference from the ESP module, reports yaw over ±138°/s and has its own self-test every 20 ms; the ESP module flags open circuits and shorts to ground or supply. Later designs such as the Saab 9-3 sensor or Bosch's SMI810 deliver digital data over a bus. Without the signal, stability control cannot work; whether a lamp lights depends on the maker.
- What you may notice
- Stability and traction control unavailable
- ESC warning lamp on, depending on the make
- Likely causes
- LikelyOpen circuit or short in the sensor wiring
- PossibleLoose or corroded sensor connector
- PossibleYaw rate sensor internally defective
- 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.