Buy Wheel Speed Sensor (Rear) (56041393AA)

The Wheel Speed Sensor (Rear) 56041393AA is an h important component of the anti-lock braking

system (ABS) used in several Jeep vehicles, particularly the Jeep Liberty and Jeep Cherokee models

produced in the early 2000s. This sensor monitors the rotational speed of the rear wheels and sends that

information to the vehicle’s ABS control module. By providinghaccurate wheel speed data, the sensor helps

the braking system maintain stability, traction, and safety during driving.

The main purpose of the rear wheel speed sensor is to detect how fast the rear wheels are rotating.

As the vehicle moves, the sensor works together with a toothed ring or tone ring attached to the axle or

differential. When the wheel rotates, the teeth pass by the sensor and create electrical pulses. These pulses

are converted into signals and sent to the ABS control unit, which constantly analyzes the speed of each

wheel. If the system detects that a wheel is slowing down too quickly during braking, it automatically adjusts brake pressure to prevent the wheel from locking.

Jeep Liberty (KJ) and Jeep Cherokee models

Part number 56041393AA is commonly used in vehicles such as the Jeep Liberty (KJ) and Jeep Cherokee

models manufactured between 2001 and 2006. It is designed as a direct replacement for the original

factory sensor, ensuring proper fit and compatibility with the vehicle’s braking and stability systems. This

sensor is typically located on the top of the rear differential, where it can accurately measure the rotation of the rear axle.

In terms of construction, the rear wheel speed sensor is made from durable materials such as plastic,

metal, and rubber components. These materials are designed to withstand the harsh conditions found

underneath a vehicle, including heat, moisture, road debris, and vibration. The sensor usually includes a

small electrical connector that links it to the vehicle’s wiring harness and allows it to transmit signals to the ABS controller.

When the 56041393AA rear wheel speed sensor fails or becomes damaged, several warning signs

may appear. Drivers may notice the ABS warning light on the dashboard, reduced braking stability, or

traction control issues. In some cases, the vehicle’s anti-lock braking system may stop functioning

properly, which can increase the risk of wheel lock during sudden braking.

Replacing a faulty rear wheel speed sensor is usually a simple repair that involves disconnecting the

electrical connector and installing a new sensor in the differential housing. Once replaced, the ABS system

can again receive accurate wheel speed information and maintain safe braking performance.

Overall, the Wheel Speed Sensor (Rear) 56041393AA is a small but vital component that helps ensure safe braking, improved vehicle stability, and reliable performance in many Jeep vehicles.