WHEEL SPEED SENSOR
SKU: WSS-570
WSS-570 PAT Wheel Speed Sensor RHF
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. - Utilises advanced data transmission systems like the Controller Area Network (CAN) - Crucial for driving safety, influencing systems such as ABS, TCS, ESC, ADAS, and ACC - Supports engine management, transmission control, and navigation systems - Impacts vehicle dynamics, driving comfort, safety, emissions, and fuel consumption - Available in two types: passive (inductive) and active **Passive/Inductive Wheel Speed Sensors:** - Inductive analogue type, no external power supply needed - Consists of a wire coil wound around a soft iron core, connected to a permanent magnet - Detects wheel hub or drive shaft rotation via a trigger wheel - Can become inaccurate at low speeds and sensitive to positioning and damage **Active Wheel Speed Sensors:** - Digital hall sensor type with integrated electronics, requires power supply from ABS module - Two types: magneto-resistive and hall sensors - Generates a digital signal, can have 2 or 3 terminals - Triggered by opposing magnets around a multipole ring (encoder) or a toothed ring - Encoders can be located inside the wheel bearing, on the wheel bearing, or on the wheel carrier **Advantages of Active Sensors:** - Accurate wheel speed detection from stationary - Smaller and lighter design - Insensitivity to vibration and temperature fluctuations - Less sensitivity to changes in air gap - Reduced electromagnetic interference - Ability to detect forward and reverse movement **Symptoms of a Faulty Wheel Speed Sensor:** - Multiple warning lights displayed on the dashboard - Wheels locking during braking - Pulsation of the brake pedal - Erratic or no speedometer operation - Other seemingly unrelated system failures **Troubleshooting and Diagnostics:** - Determine if the sensor is inductive or active - 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 - Check the sensor resistance for inductive sensors **Note:** 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.| SKU | WSS-570 |
| Model # | WSS-570 |
| Barcode # | 9341554178809 |
| Brand | PAT |
| Placement On Vehicle | Front Right (FR) |
| Placement On Vehicle | RHF |
| Warranty | 12 Months |
| Position On Vehicle | Front Right (FR) |
| Position On Vehicle | RHF |
| Contains Liquid | No |
Packaging note: PAT products may be supplied in PAT Premium packaging instead of the manufacturer's original box.
PAT sources EFI and engine-management parts from established OE-type manufacturers and repackages some of them in Australia. The manufacturer inside can change between batches as supply changes — for example, a part once made by Hitachi may now come from Bosch. Every unit is an OE-type part from a recognised manufacturer.
Packaging: Manufacturers periodically update their packaging and labelling. You may receive the current or a previous design — the product, formulation and part number are unchanged.
Fitment (vehicle-specific products): For products listed to suit a specific vehicle, our fitment data is kept as accurate as possible, but vehicle catalogues are not perfect. Some models had more than one part fitted depending on build date, engine, or component size/variant. It is the buyer's responsibility to confirm the part suits their vehicle before purchasing. If you have any doubt, please message us with your vehicle's registration number and state (preferred), or full VIN/build details, and we'll do our best to confirm before you buy.
