Theonly major symptom of bad wheel speed sensor in Nissan Xterra is the ABS warning light comes on in the instrument cluster, and the anti-lock braking system is disabled. When the ABS light / comes on in your Xterra, the anti-lock braking system is disabled. The vehicle can still be braked without ABS. Whatdoes the P0502 code mean? The code means that the Engine Control Module (ECM) has identified a difference in speed reading between the vehicle speed sensor (VSS) and the wheel speed sensors. This code covers some models dating back to 1996. First, your car uses a speed sensor to track rotational speed and calculate how fast it moves. CheckEngine Light. One of the first symptoms of an EVAP leak is also the presence of the Check Engine Light. Typically this goes hand-in-hand with a fuel smell. However, the Check Engine Light can mean so many things. The only way to tell for sure if it is a leak is to run a scan with your diagnostic tool. 3. Commonsymptoms of a faulty torque converter include an illuminated check engine light, overheating, stalling, vibrations, strange noises, and additional engine performance issues. You can check the torque converter for issues with a stall speed test or by driving the vehicle while a scan tool is connected. JeepPatriot - (mariakray / Shutterstock) The only major symptom of bad wheel speed sensor in Jeep Patriot is the ABS warning light comes on in the instrument cluster, and the anti-lock braking system is disabled. When the ABS light / comes on in your Patriot, the anti-lock braking system is disabled. The vehicle can still be braked without ABS. 1 Braking issues. One of the most alarming and noticeable signs of bad wheel bearings are brake issues, which can occur when your wheel bearings are worn down and loose in the housing. You may notice inefficient braking on the road, brake "slips," or uneven wear on your brake pads. Loose wheel bearings cause the rotor to shift, which can Almostall modern vehicles come with vehicle dynamics systems, which, at the very least, include anti-lock brakes (ABS). For the ABS system to work, the vehicle dynamics module(s) need(s) wheel speed information for each of the four wheels.. The ABS system then uses wheel speed information to pulse the brakes during a sudden hard braking event to prevent wheel lockup, because when the wheels jKIx0t.

symptoms of a bad vehicle speed sensor