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The ABS module is an essential part of your car’s anti-lock braking system. It is a computer that warns you when there’s trouble with the ABS, stores trouble codes, and can let you know what’s wrong and where. But sometimes it fails. In this article, we’re going to run through some of the signs of a faulty ABS module for your car.
The ABS warning light is glowing
ABS warning lights are an indicator that there is something wrong with your anti-lock braking system and it needs repair to get fixed. There are many reasons the light may be glowing on your instrument panel, some of which may be unrelated to the ABS itself. It can be caused by things like faulty sensors, worn-out brake pads, or low fluid levels. Many times, a faulty ABS module will trigger your check engine light as well as other warning lights on your dash.
Squeaking or grinding noises during braking
If you hear a high-pitched squeaking or grinding noise when braking, this could mean there are low brake fluid levels due to a leak in one of the brake lines. On some older vehicles, you may actually hear a grinding noise coming from inside the ABS module itself. This usually means it’s already gone bad.
The car pulls to one side when braking
A faulty ABS module can cause your vehicle to pull to one side when braking. This could indicate that the module has gone into “limp mode” which cuts power to the ABS system to prevent further damage from being done. The pulling effect is most noticeable during heavy braking at high speeds.
ABS sensors are failing
If your ABS sensor fails then it will send a signal telling the system what speed each wheel is going at so when you apply pressure on the brakes they stop as they should. If one of these sensors goes bad then this could cause problems with stopping distance and stability while driving on slippery surfaces such as ice or snow.
The brake pedal is not responding
You may find that the brake pedal doesn’t respond when the ABS light comes on, and the brakes will not work as effectively when this happens. You might also notice that there’s a problem with certain wheels locking up during braking.
The brake pedal is pulsing
If the brake pedal starts pulsing up and down when you press it, this is another sign that there’s a problem with either the wheel speed sensor or the ABS module itself.
One thing to note is that not all ABS modules are repairable, nor do they all require repair. The best way to determine whether or not yours will need service is to have it looked over by a licensed mechanic or technician.
If you determine that the ABS module is in fact faulty, you have two options: replace it with a new module or repair it yourself. Repairing an ABS module can be difficult, but is possible in most cases.