Jeep Speed Sensor

A lot of vehicle components perform their function continuously no mater what the circumstance is. Not all the parts that your Jeep is made of, however, perform this way. While there are many parts that do, some Jeep components would depend on a particular circumstance for their action. The fuel delivery system, for example, would inject a particular amount of fuel to the engine depending on the condition of the exhaust, in particular, on the amount of oxygen remaining in the exhaust. Similarly, the actions of the antilock braking system (ABS) and the engine management computer are guided by the vehicle’s speed.

Now, for these various systems to react to circumstances accordingly, it must be equipped with sensors that measure the said conditions. To measure the oxygen remaining in the exhaust, an oxygen sensor is used. To measures the speed of Jeep vehicles, there is the Jeep speed sensor. But since two different systems are in need of a speed sensor, two types of speed sensors are often used on vehicles. One is the wheel speed sensor and the other is the engine speed sensor.

The wheel speed sensor is the sensor used in antilock braking systems. As expected, this sensor is installed near a wheel and is designed to pick up the rotational speed of a wheel. The data obtained by this sensor is then sent to the ABS computer, which in turn determines whether the wheels are locking up or not so that the system can respond accordingly.

The engine speed sensor, on the other hand, is the sensor used by the engine management computer. This sensor is usually mounted on the engine’s crankshaft and measures the rate at which it is spinning. The engine management computer depends on signals from the engine speed sensor in modifying engine functions and initiating diagnostic routines. In some vehicles equipped with an ABS system, however, all the speed signals are derived altogether from the wheel speed sensor, thus eliminating the need for an engine speed sensor.