Skip the auto shop - Our mechanics make house calls

How Long Does an Anti-Lock Fuse or Relay Last?

anti-lock fuse

Today, vehicles have braking systems that are far superior to what they used to be. Late-model cars still have traditional braking systems, but they are backed up by ABS systems that prevent your wheels from locking up when you have to do a sudden stop, or when you are braking on slippery surfaces. In order to work properly, your ABS system requires the cooperation of a number of electronic parts, operated by fuses and relays.

In your ABS system, there are usually two man fuses – one delivers power to the system when you turn on your ignition, activating the anti-lock relay and closing it. Then the second fuse delivers power to the rest of the system. If a fuse blows, or the relay fails, your ABS will stop working. You will still have your standard braking system, but the ABS will no longer deliver the pulses to the brakes that prevent you from sliding or locking up.

Whenever you use your brakes, your anti-lock fuse or relay is working. There is no specific lifespan for a fuse or relay, but they are vulnerable – fuses more so than relays. You don’t replace fuses and relays during routine servicing – only when they fail. And unfortunately, there is no way of knowing when that might happen.

When an anti-lock fuse or relay goes bad, there will be certain signs to look out for, including:

Your ABS system is not something that you use all the time – only under certain conditions. But it is a very important safety feature in your vehicle so have the problems with your ABS system fixed right away. A certified mechanic can replace the failing anti-lock fuse or relay to eliminate any further problems with your vehicle.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...


Related questions

Q: Front brakes lock up is that the ABS module or the pump

The ABS system should of been put into bleed function when bleeding out the brake lines or you may not be able to get all the air out of the system. This is most likely the cause of the rear...

Q: ABS and BRAKE light both on

This issue is very common and is typically related to a worn out ABS Speed Sensor. The function of the speed sensor is to monitor the way the tires rotate, and make sure that the ABS system is triggered if...

Q: advancetrac and abs light on after cv axle replacement

This may be related to faulty wheel speed sensors which are located at each of the four wheels. These sensors monitor wheel speed which is relayed to the ABS system. When the ABS system detects an abnormal speed for the...