* Wheel Speed Sensors (4): One sensor on each wheel. These are crucial for detecting wheel slippage. These are located within the wheel hubs or on the axles near the wheel bearings.
* Yaw Sensor (or Lateral Acceleration Sensor): This sensor measures the car's rotation around its vertical axis. Its location varies depending on the specific model and may be somewhere in the undercarriage or near the rear suspension. It is not always easily accessible.
* Brake Pressure Sensor: This sensor monitors the brake system pressure. The ABS (Anti-lock Braking System) and TCS work together, and this sensor helps the system regulate braking during a traction loss event.
* Steering Angle Sensor (sometimes): Some systems use a steering angle sensor to aid in determining the direction of the slip. Its location is usually on the steering column.
There's no single "traction control sensor" to pinpoint. Diagnosing a traction control issue requires a diagnostic scan tool to identify which sensor(s) might be malfunctioning. A mechanic will be able to use this information to pinpoint the problematic sensor or other component.
