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The above steps are only for reference, if you do not know how to operate, please consult a professional mechanic. What is an ABS wheel speed sensor?The wheel speed sensor is the primary data source for the ABS system. In order for the anti-lock brake (ABS) control module to react to driving conditions, wheel speed sensors (WSS) are placed on all four wheels, and constantly transmit the speed of each wheel to the ABS control module. They are mounted in the hub, close to the brake calipers, where they can monitor how fast the axle is turning. How does the ABS wheel speed sensor work?They are mounted in the hub, close to the brake calipers, where they can monitor how fast the axles are turning. All four WSS work in unison by providing four independent signals to the ABS control module, which allows the control module to correct for slipping if one or more wheels stop rotating. This action is responsible for highly reduced braking distances in slippery conditions. What are the symptoms related to a bad ABS wheel speed sensor?In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well. Can I drive with a ABS wheel speed sensor problem?The vehicle can be driven with these warning lights on, since failure of the ABS or TCS does not disable the vehicle, but safety is a concern as drivers become accustomed to the road manners of their vehicle's. If hard braking that is normally controlled by the ABS control module is necessary, a collision may occur. We do recommend towing the vehicle to a repair facility if braking feels unusual under light or normal driving conditions. How often do ABS wheel speed sensors need to be replaced?Wheel speed sensors are notorious for failure, since they are housed on the wheel hub, near the road surface. This means the sensor and electrical connections are subject to dust, debris, precipitation, salt, and road hazards. Aside from that, brake dust and road grime are known to accumulate around the magnetic sensor, causing interference, and preventing proper readings. If the ABS and TCS lights are active, there is a very good chance you have a faulty wheel sensor, without regard to mileage. Same Day ShippingNeed your part faster? Choose expedited shipping at checkout. Guaranteed To FitHighest quality, direct fit replacement auto parts enforced to the strictest product standards. USA Customer SupportExceeding customers' expectations, our team of passionate auto enthusiasts are here to help. Instructional Video LibraryThousands of how-to auto repair videos to guide you step-by-step through your repair. Where is the wheel speed sensor located?Wheel speed sensors are often called ABS sensors. You'll find them mounted on the axles of all ABS equipped vehicles. Look for this sensor on your wheel hubs, near the brake rotors. You'll find the rear wheel speed sensor mounted on the rear axle housing or wheel cylinder.
What happens when your wheel speed sensor goes out?A failing wheel speed sensor will turn off your vehicle's traction control, stability control, or any other driver assist feature. Sometimes, a damaged wire could also prevent the sensor from sending data to the control module.
What is the ESP button on a 2006 Jeep Liberty?Jeep Libertys manufactured in 2006 and later come standard with ESP, or Electronic Stability Program. Among other things, ESP applies selective breaking to prevent wheel spin. This traction portion of the ESP has an effect similar to that of an LSD.
Does the wheel speed sensor control the speedometer?Most cars depend on signals from the wheel speed sensor to adjust their speedometer readings. A faulty sensor can result in inconsistent or erratic speedometer readings. Alternatively, it can result in no readings at all. This doesn't mean that your car would simply stop working and you can't drive it anymore.
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