Skip the auto shop - Our mechanics make house calls

Symptoms of a Bad or Failing Fuse

fuse

Bad or Failing Fuse Inspection

by a top-rated mechanic at your home or office

Fuses are simple electrical devices that are designed to stop electronic circuits from being overloaded. They come in many shapes, sizes, and designs, however, most automotive fuses use a strip of wire that will melt or break if the amount of current that is passing through it exceeds the amperage rating of the fuse. The fuse will blow in order to protect the circuit, wiring, and components from possible damage due to excessive current. When fuses blow or have any issues they can cause problems with functions and accessories of the vehicle. Usually a bad or blown fuse will produce a few symptoms that can alert the driver of a potential issue.

HAVE SYMPTOMS OF CAR TROUBLE?
Get an $80 diagnostic
by a top-rated mechanic at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

Accessories or functions lose power

One of the first symptoms of an issue with a fuse is loss of power to one or more of the vehicle’s functions or accessories. Fuses are installed in line of specific circuits in order to protect those circuits from potentially overloading. If those circuits do become overloaded, for any reason, the fuse will blow and cut off power to the circuit in order to protect it from the possibility of damage. If you notice that any of the vehicle’s functions or accessories, such as the radio, wipers, power windows or locks, etc, suddenly cease to function it may be related to a fuse.

HAVE SYMPTOMS OF CAR TROUBLE?
Get your car fixed at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

Fuse is blown

Another, more direct symptom of a bad fuse is a blown fuse. If the fuse is bad, upon retrieval and inspection the wire inside of the fuse will broken, burnt, or otherwise disconnected. A blown fuse will have to be replaced with a new one in order to restore function to the circuit. A blown fuse should also be investigated to determine what caused the fuse to blow in the first place.

While most fuses should last a long time as long as the vehicle’s electrical system is operating correctly, over time electrical systems and components can develop issues that cause fuses to blow. If you find or suspect that one or more of your fuses is blown or may be having an issue, have the vehicle inspected and diagnosed by a professional technician, to determine if the fuse should be replaced, and if another problem may be present.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on
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

P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...
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)...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...


Related questions

Q: Electrical system problems on 2007 Buick Rainier

This was a common issue in many GM vehicles that is typically caused by a short in the system that controls these features. Tracing the short can be very time consuming and difficult to track down. If you would like...

Q: Brake lights out in a 2005 Toyota Highlander

Your suspicions about the connector being faulty would be supported by your symptoms, but a blown fuse would result in none of the brake lights working. I would suggest having a certified mechanic like one from YourMechanic inspect your brake...

Q: Front driver-side seat (part that you sit on) will not move forward or backwards; can you fix this issue?

From what you've described, your power seat has an electrical issue. There is separate control setting for each seat position. The power seat has motors that drive a track assembly to move forward or backward. The motors or related wiring...