Even a small amount of corrosion can cause enough resistance on the wires to keep the system from working. Corrosion is a relatively common issue, and one that can cause problems in the aforementioned wheel speed sensor wires. This may be due to internal wear typically from dirty brake fluid.Ĭorrosion on the ABS module can keep information from being relayed between the wheel speed sensor and the ABS. Like all pumps and valves, those connected to the ABS are liable to become damaged and unresponsive. When the wheel speed sensor alerts the ABS that the wheels are moving at different speeds, a hydraulic valve is responsible for releasing, or increasing, the brake fluid pressure to prevent the wheels from losing traction with the ground. This in turn makes it one of the more common causes of the ABS light coming on. As the wheel speed sensor is located very close to the braking system, the high heat generated by the brakes cause the wheel speed sensor to be more susceptible to damage. The wheel speed sensor is made up of two components: a metal ring with teeth attached to a drive axle or wheel bearing, and the sensor itself, which reads the teeth on the ring as the wheel rotates. If the wheel speed sensor is defective, or if the wiring from the sensor to the ABS is damaged, then the ABS will not get the wheel speed information that it requires. When the ABS receives information that one or more of the vehicle’s wheels are moving slower than the others, the system releases brake fluid pressure, which then allows the wheels to resume movement. These sensors determine the rate at which the wheels are moving, and relay that information to the ABS. The ABS relies on information from the wheel speed sensors, which are placed inside the hub of each wheel and occasionally inside the transmission.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |