What is an anti-lock fuse or relay?
Anti-lock fuses and an anti-lock relay are parts of your anti-lock braking system (ABS).
The ABS fuses and relay are integral parts of the system that allow power to reach the components. The relay is an electric switch that opens and closes, allowing power to reach the system. The fuses, on the other hand, are protective devices that ensure that the system does not receive too much power.
If either one of these components malfunctions, your ABS will most likely stop working. While you can drive your car without a functioning ABS, the system will be unable to protect you during harsh weather, potentially leading to unsafe driving conditions.
When should I replace the anti-lock fuses or relay on my car?
You may notice any of the following signs if your ABS fuses or relay are in need of replacing:
ABS light is on: If the ABS light or check engine light on your dashboard stays on after you start your car, something is likely wrong with your ABS system. Your ABS light could indicate a blown anti-lock fuse, a faulty control relay, a faulty anti-lock sensor, low brake fluid, or a worn out ABS pump.
Unresponsive brake pedal: If your brakes seem to be underperforming, it could be due to a faulty relay or blown fuse. For example, if you need to press down on the brake pedal several times to stop your vehicle, there’s probably something wrong with your anti-lock control relay. Air in the brake line or worn out brake pads could also cause your brake pedal to be unresponsive.
Locked wheels: If your wheels lock up when you apply pressure to the brake pedal, then your ABS system is not working correctly. Locking wheels are usually caused by a failing ABS relay.
How often should anti-lock fuses or relays be replaced?
Anti-lock fuses and relays don’t have specific lifespans, but they generally last 10,000 miles or more if the ABS system is properly maintained. Some vehicles may require replacements sooner than later, so it’s best to check your owner’s manual or consult with a mechanic or dealership.
Pro tip: Regularly inspect the electrical wiring around your engine compartment’s fuse box. If your wires and connectors are secure and free of corrosion, your fuses and relay are likely in good condition.
Can I replace my anti-lock fuses or relay myself?
Replacing an anti-lock fuse or relay is fairly straightforward, so you could replace these parts on your own. Keep in mind that process may be specific or include extra steps for your vehicle, so letting a certified mechanic replace your anti-lock fuses or relay may be the best option.