ABS: Anti-Lock Braking System

What is an Anti-Lock Braking System?

The  (ABS) Anti-Lock Braking System is a computer module on your ABS Pump that enables improved control of your vehicle in case of an abrupt stop. The ABS operation is available from approx. 5 Kph to the maximum vehicle speed.

An ABS warning light on your dash means a problem has been detected, and the system needs to be  scanned for codes in order find out what area the fault is. With the light on,  ABS operation may not be present, but normal braking may be. As with your ECU and Airbag modules, When your ABS module becomes faulty in your vehicle and you take it to a main dealer, the best they can do is to replace it, this also can cost you vasts amount of money in most cases as they can be very expensive to replace.

Anti-Lock Brake Repairs

At Autokey we specialise in Anti-Lock braking systems. Your vehicles ABS system or traction control system is designed to give you additional safety under hard braking and in icy or damp conditions. The vehicle is fitted with an ABS pump and an ABS module. In the event your vehicle’s wheels lock up under severe braking the ABS Control Unit will identify this through a wheel speed sensor and reduce or release the braking effort temporarily. This allows the tyre to regain traction with the road surface and apply braking effort.

In the event of an ABS failure or an ABS problem your ABS warning light will illuminate and in some vehicles an ABS warning message will appear on the dashboard such as Anti lock Brake Malfunction or DSC Malfunction. ABS difficulties can arise due to the ABS pump itself or an associated component. Each wheel is fitted with a wheel speed sensor which calculates the wheel speed and transmits this information to the ABS control unit which in turn activates the ABS pump and adjusts the braking effort for each wheel. In order to carry out an accurate ABS test the vehicle must be placed on a live data stream and evaluated by a qualified technician with ABS experience.

Here at Autokey we carry out a road test on your vehicle or simulated road test in order to evaluate the vehicles ABS fault and pinpoint the required repair. The vehicle is connected to a live data stream and evaluated by a qualified ABS Specialist. We take this approach to avoid additional costs and incorrect diagnosis. Replacement ABS control modules and replacement ABS pumps can be costly. A simple wheel speed sensor can rectify the issue at times thus avoiding the cost of the replacement ABS unit.

In the event your vehicle requires an ABS Module repair, Autokey can repair your unit saving money and vehicle down time. We can repair a wide range of ABS Units and carry parts for most makes and models



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