PAT Wheel Speed Sensor WSS-401 LHR

Wheel speed sensors, originally introduced for Anti-Lock Braking Systems (ABS), are now integral to numerous modern vehicle systems. With a focus on safety and customer demand, these sensors have become essential for the operation of intelligent safety systems and other vital vehicle functions.

• Advanced data transmission systems like the Controller Area Network (CAN) allow multiple control units to utilise wheel speed sensor data.
• Crucial for driving safety, influencing systems such as ABS, TCS (Traction Control System), ESC (Electronic Stability Control), ADAS (Advanced Driver Assist System), and ACC (Adaptive Cruise Control).
• Supports engine management, transmission control, and navigation systems.
• Significantly impacts vehicle dynamics, driving comfort, safety, emissions, and fuel consumption.
• Available in two types: passive (inductive) and active.
• Passive sensors are inductive analogue types that do not require an external power supply.
• Active sensors are digital hall sensor types with integrated electronics, requiring a power supply from the ABS module.
• Active sensors offer accurate wheel speed detection from stationary, crucial for traction control and hill descent control.
• Smaller and lighter design, insensitivity to vibration and temperature fluctuations, and reduced electromagnetic interference.
• Ability to detect forward and reverse movement.
• Symptoms of a faulty wheel speed sensor include multiple warning lights on the dashboard, wheels locking during braking, pulsation of the brake pedal, erratic or no speedometer operation, and other seemingly unrelated system failures.
• For effective diagnosis, use a suitable diagnostic tool to read fault codes, inspect the wiring for damage or breaks, inspect the mechanical assemblies for issues, check the output signal using a scope or suitable diagnostic tool, check the supply voltage for active sensors, and check the sensor resistance for inductive sensors.

12 Months Warranty

* For correct fitment ensure the vehicle is listed in the compatibility list AND read any notes associated with the product. If there are no vehicle details listed, please send a message.