What it means
The standardized definition identifies a circuit fault involving the yaw rate sensor, which measures the vehicle’s rotation during turns. The control module sets the code when it detects an electrical fault in that circuit; exact detection conditions vary by vehicle.
How it works
The yaw-rate sensor measures how quickly the vehicle rotates around its vertical axis during a turn, helping stability control detect a skid. C0196 points to an electrical fault in the yaw-rate sensor circuit, which can lead the module to reduce stability or traction assistance; exact detection criteria vary by vehicle.
Common causes
Most likely first.
- Damaged sensor wiring or connector
- Faulty yaw rate sensor
- Power or ground problem
- Fault in the stability control module
Symptoms
- Stability control warning light
- Traction or stability control may be unavailable
- Reduced stability assistance
How to diagnose it
- Read freeze-frame data and related ABS or stability codes to understand when the yaw-rate circuit fault was recorded.
- Check live data for a plausible yaw-rate reading with the vehicle stationary and during the service-information test.
- Inspect the yaw-rate sensor connector and harness for loose connections, corrosion, chafing, or impact damage.
- Test the sensor circuit’s power, ground, and signal wiring using the vehicle wiring diagram and manufacturer’s specification.
- If the wiring is sound, test the yaw-rate sensor and stability-control module input according to the vehicle-specific procedure.
Common fixes
- Reconnect or clean a loose or corroded yaw-rate sensor connector.
- Repair damaged wiring or a poor power or ground connection in the yaw-rate circuit.
- Replace the yaw-rate sensor if it fails the specified electrical or live-data test.
- Repair or replace the stability-control module only if its input fault is confirmed.
Can I keep driving?
Stability or traction assistance may be reduced or disabled, especially affecting control during a turn or sudden maneuver. Drive gently, allow extra room, and avoid slippery conditions until the yaw-rate circuit is repaired.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.