Can You Repair A 40 Amp Fuse?

How to Bank check and Replace Car Fuses

Updated: Dec. x, 2022

Solve electrical bug yourself past simply replacing a fuse. Nosotros'll show you how to check car fuses, how to supersede a car fuse and more than here.

Family unit Handyman

Cars run on electricity besides as gas, and well-nigh all of it runs through fuses. Learn where they are, how to spot a diddled fuse, and how to replace them. Information technology takes about five minutes, costs almost $1, and it'll save you the hassle of a trip to the repair shop.

You might too like: TBD

Time

An 60 minutes or less

Complexity

Beginner

Cost

Less than $20

Step 1: Locate the auto fuses

Photo 1: How to cheque auto fuses under the hood

Checking your auto fuses is fairly simple but it'south ever smart to inspect your owner's manual for the location of your fuse box. It's often under the hood.

Under the dash

Some types of cars locate the fuse box under the dash, beneath the side kicking panels or nether the rear seat.

Photograph ii: Fuse diagram shows fuse locations

Remove the cover and wait for a locator sticker. You may need to cheque your owner's manual for the location of the fuse you're looking for.

Back side of cover

Many fuse covers comprise actress car fuses and fuse pullers on the dorsum side. If you utilize one of them, supercede it the adjacent time you go to the auto parts store.

Vehicles today have 40 or more auto fuses grouped in two or more places and usually vary from ten to xxx amps. Usually located in or around the instrument panel near the dash, fuses can also be found under the hood and even under the rear seat.

Next time your radio, lights or other device stops working, chances are a diddled fuse is the culprit. Expect under "Fuses" in your owner'due south transmission for assist finding your fuse panels. Most manuals have a diagram showing yous where each fuse box is. Each fuse panel cover should have a diagram listing each device and the corresponding fuse.

CAUTION!

Never replace a diddled fuse with a college-amp fuse. Always replace the fuse with one with the specified amp rating. You may install the side by side-smaller-rated fuse to get you past in a compression until y'all can purchase a replacement.

Step ii: Examination for the bad fuse

Photo 3: Test with an automotive low-cal

Clamp the grounding lead of your test light to a metallic component. Plough the ignition key to the "run" position. Then probe both of the tiny test ports in the face of each fuse. The light should illuminate at each port. If it doesn't, the fuse is blown.

Photo iv: Test with a fuse tester

Plow the key to the "run" position and press the tester prongs into the test ports. The LED will light up if the fuse is good.

Once y'all observe the fuse box, locate the right fuse by checking the diagram located inside the comprehend. Then exam it with a standard automotive test light (photograph 1). Or, purchase a fuse testing tool at an machine parts shop, like Autozone, and just touch it to each fuse in turn (photo ii).

Not All Fuses Are Alike

In that location are at least seven different styles of fuses, so you'll need the blown fuse to match it up with the right replacement. Here are the three near common sizes of car fuses.

Pace iii: How to replace a fuse

Photo 5: Pull the fuse

Remove the fuse that'due south labeled for the car device that's not working, for case, the fan, radio, lighter or marker lights. Utilise a needle-nose pliers or a fuse puller (available at auto parts stores).

Photo vi: Burned fuse

Concord the fuse up to the light to see if information technology's burned out. You'll see a fine wire connecting the two sides if the fuse is good. If a section of that wire has burned away, the fuse is bad. The motion picture on the left shows what a blown fuse looks similar.

Good fuse

In a good fuse, the wire between the two sides is still whole.

Photo 7: Types of fuses

Most automobile fuses used in vehicles today are ane of three types: mini, standard or maxi. The mini and standard are fast-acting fuses that protect the majority of your vehicle's circuits, including those for lights and radios. The maxi motorcar fuses are tiresome-acting fuses that protect circuits with a large current draw such every bit those for anti-lock brakes, rear window defogger and traction control.

Car fuses are color coded by amp rating. For example, a standard blue fuse has a 15-amp rating, xanthous is 20 amps and green is 30. Before you buy and supersede car fuses, keep in mind that the fuse panel cover often contains spare fuses and even a fuse puller. Just be sure to replace the spares so they'll be there the next fourth dimension you need them. Y'all tin can buy them at whatever motorcar parts store and at well-stocked service stations.

Annotation: If your new fuse blows shortly after installing it, you lot could accept problems in that excursion. Schedule an appointment with your service station or dealer for an good diagnosis to repair the problem.

In-Line Fuses

Some accessories that aren't manufactory installed may have a remote in-line fuse. These fuses can be located under the nuance, nether the hood or even in the trunk depending on the circuit they protect. They about likely protect an aftermarket accessory like fog lights or a CD changer. The best way to discover an in-line fuse is to trace the wire from the accessory to the fuse panel. Along the mode, you'll notice a fuse container that looks similar one of these shown. Open the housing to pull out the fuse and examine information technology. Supervene upon information technology with one of the same size and amperage and snap the housing back together.

Required Tools for this Project

Have the necessary tools for this DIY projection lined up before you outset—y'all'll save time and frustration.

Use pliers if yous don't have a fuse puller.

Required Materials for this Projection

Avert concluding-infinitesimal shopping trips by having all your materials gear up alee of time. Here's a list.

Originally Published: Dec 10, 2022

Like Projects

Source: https://www.familyhandyman.com/project/replacing-auto-fuses/

Posted by: reuterwroke1951.blogspot.com

Share this post