The Anti-lock Braking System module is an important sub-system in your car’s braking system that assists in preventing the locking of your wheels during a heavy or sudden braking. It enables you to have control over your car, particularly when you are driving in icy areas or on a slippery road. The ABS module is responsible for providing the car with the capability to stop quickly and safely and when this particular module fails, the driver is put in a very dangerous position. Learning the causes of ABS module failure and how to avoid them will help you avoid a lot of hassle and keep your VW safe to drive.
Possible Reasons Why Your ABS Module Can Fail
- Sensor Malfunctions: For the ABS to work, it needs the help of sensors that are placed at each wheel to detect the speed of the wheels. These sensors relay real-time information to the ABS module, which in turn, controls the amount of brake pressure to avoid locking up the wheels. When one of these sensors goes bad or is damaged, it can send the wrong signal to the module and make it not work.
- Electrical Issues: Another possible reason for the failure of the ABS module is the presence of electrical issues. The ABS module is a system that depends on many sensors and these sensors are connected to the module through wires. If there is a problem with the wiring for example if there is a short circuit or if the wires are corroded then it affects the communication between the module and the sensors. This can result in a partial or total failure of the ABS module.
- Hydraulic Pump Failure: The ABS module controls a hydraulic pump which in turn controls the brake fluid pressure to the brakes. If the pump is faulty or stuck the ABS module will not function as it should. This can result in a poor braking system and your Volkswagen might drive a longer distance before it comes to a complete stop.
- Moisture and Corrosion: Water is the main foe of any electrical part, and the ABS module is also not immune to it. If moisture penetrates the ABS module then it will lead to corrosion of the interior wiring and its failure. This is often observed in old cars or in those used in areas with high humidity or areas that receive a lot of rainfall.
- Software Issues: The ABS, like most of the car parts manufactured in the modern world, has a module that depends on software. Sometimes the functioning of the module can be erratic or the module may not function at all due to software bugs.
Preventing Failure of the ABS Module
- Regular Inspections: It is always advisable to have your vehicle’s braking system checked from time to time to avoid any complications. Inspect the ABS sensors, wiring harness, and hydraulic pump. Check for any sign of rusting, breakages, or signs of wear. If you observe any anomalies, correct them as soon as possible to avoid them getting worse.
- Address Electrical Issues: If you have any problem with the electrical system of your car and you notice things like flickering of lights or you have electrical failure occasionally, you should consult an expert. It is noteworthy that electrical problems may influence the ABS module and other critical systems of your Volkswagen.
- Update Software: Periodic updates of the software in your VW can go a long way in preventing software-induced ABS module failure. Consult your dealer or mechanic for any updates that may be currently available.
Why Seek Professional Help?
If you observe any of the symptoms related to ABS module failure or if the ABS warning lamp starts glowing, then it is advised to request the help of a mechanic. They have all that is needed to identify the issue and advise whether a quick fix or a replacement of the ABS module is needed.
Volkswagen Mechanics You Can Count On
At Hagan’s Motor Pool, we are located 
in Rochester, NH, and we have experienced technicians who are familiar with the VW braking system and can provide a range of services to avoid the failure of ABS modules. We are honored to provide our services to clients from the neighboring regions such as Barrington, Alton, Berwick, and Dover of New Hampshire. Visit our shop for your next service and take advantage of our expertise and professionalism.