Fitment:For 2007 NISSAN SENTRA ABS Speed SensorsFor 2008 NISSAN SENTRA ABS Speed SensorsFor 2009 NISSAN SENTRA ABS Speed SensorsFor 2010 NISSAN SENTRA ABS Speed SensorsFor 2011 NISSAN SENTRA ABS Speed SensorsFor 2012 NISSAN SENTRA ABS Speed SensorsDescription:ABS Wheel Speed SensorLocation:The wheel speed sensor will be located on each individual wheel or on the axle housing on vehicles equipped with a solid axle. The speed sensor may be part of the wheel bearing assembly or a separate component where the sensor protrudes through the bearing assembly or into the brake backplate.What It Does:The wheel speed sensors are responsible for reporting the speed of an individual wheel to the Anti-Lock Brake System control module. The wheel speed sensor may be an analog type or a digital type. Malfunction Symptom: ABS brake light comes on, ABS false alarm due to inconsistent signal from sensor. Also known as: wheel sensor, speed sensor, brake sensor. Kit includes: 4* ABS wheel speed sensors: front, rear, left, right. Without instruction manual.