* Wheel Speed Sensors (4): One sensor on each wheel. These are crucial because the system detects wheel slippage by comparing the speed of each wheel. These are located within the wheel hubs.
* Yaw Rate Sensor: This sensor measures the car's rotation around its vertical axis. It's often located near the center console or under the dash, but its exact location varies.
* Steering Angle Sensor: This sensor tells the system the angle of the steering wheel. Its location is also often near the steering column.
* Engine Control Module (ECM): This isn't a sensor itself, but it's the brain of the operation. It receives data from all the sensors and determines if and how to intervene with traction control.
To diagnose a problem with traction control, you'll need a professional-level scan tool capable of reading the OBD-II codes from the ECM. This will tell you which sensor or component is malfunctioning. Trying to locate and test these sensors without proper tools and knowledge can be time-consuming and potentially damaging.
