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Dash and tail light out. 15A fuse keeps shorting.

After seeing a similar post, I tried finding the short that keeps causing my 15A tail fuse to keep blowing out. I removed all of the rear light bulbs and installed a new fuse, and sure enough it popped. What else could be causing the short and how can I possibly fix it?

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  • Mazda Master
  • 44,339 Answers

The power wire is the centre terminal of the lights. If that wire is touching anything like the spring under the terminal that will be the short. Push each wire through the fitting and check for rust /broken springs or bare wire that can touch the earth.

Posted on May 05, 2013

  • Timothy Vigil May 05, 2013

    Im sorry, but could you explain that in a little more detail? I am still very new to automotive electronics so i get confused easily. The power wire in the center terminal you are talking about, is that in the rear lights or the fuse box itself? I understand the things that can cause the shorts, just not the locations. Any more solutions or details would be a life saver.

  • Bill Boyd May 05, 2013

    I was talking about where the bulb goes in the tail light The construction is like an outside metal tube that has a hole in the bottom through which the power goes in though a insulated plate and ends in like a soldered blob which touches the terminal of the bulb To keep this soldered blob in contact with the bulb there is a spring between the metal case and the insulated plate. If this spring is touching the bare power wire there is dead short which blows the fuse Check each unit carefully as it will only take one to be the problem

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Posted on Jan 02, 2017

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SOURCE: tail light fuse keeps blowing on my 1995 geo prism

Took it to the shop. The side marker lights were missing on my son's car. The wiring loops from the side marker lights to the tail lights. As the wires were touching in the front, they shorted out the tail lights. Capped the wires, problem solved!
PS: ordered side marker lights, too.

Posted on Sep 09, 2008

mrgreenz
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SOURCE: My toyota camry (1997, LE, 4) tail light fuse keeps broken again.

go to http://www.autozone.com/...eId=0900c1528009104f . you may find a wiring diagram there for free.Please vote.

Posted on Nov 18, 2008

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SOURCE: 1999 Toyotal Camry brake lights are out.

You have a ground issue.Current from another circuit is running through the lights to get to ground. this causes them to burn out quickly.You need to do a real detailed visual check.A good component wiring diagram and component locator is a requirement here.

Posted on Nov 26, 2008

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SOURCE: FUSES KEEP BLOWING FOR THE DASH AND TAIL LIGHTS

your lights are grounding out some where you will have to check for a dead short in the wiring use a volt meter in the resitance mode and track through you power side of the lights untill you find your dead short, start at the back and work your way to the fuse box pull the fuse and follow the wire. there is a short in it it will just take some time going through look for worn coating, cracks, or melted.
good luck & and happy hunting

Posted on Aug 24, 2009

  • 1810 Answers

SOURCE: 95 Honda Accord, fuse keeps blowing and no dash lights

sounds like a short
look at wires under dash
then look at te wires coming through the fire wall
check lighter too it might have a coin stuck in it as it will cause a short too

Posted on Jan 22, 2010

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1 Answer

Why when i turn on lights fuse #16 blows and i lose tail lights, turn & break lights work though.


You will probably get a better answer if you repost and give the make, model, and year of your vehicle. But the most likely cause is a shorted wire to metal contact somewhere in the circuit that fuse protects. Check the owner's manual, if you have it, to find out everything that is on fuse #16, but assuming it is just for the tail lights: usually the tail lights are a separate circuit, no other circuits involved. The turn and brake lights are on a separate circuit for sure, as a safety precaution. So, somewhere between that fuse and the tail light socket, or including the sockets too, and the headlight switch, for that matter, there is a short that is blowing the fuse. Ever heard a little sparking under the dash, or smelled burnt rubber when the fuse started blowing?. Any snagged wires hanging from underneath? There are some neat electrical gadgets that help find shorts or bad wires, Fuse Buddy, Short Finder, things like that, kind of pricey, most of them, but you might find a reasonable tool. Otherwise probably a lot of digging, pulling harnesses apart to find wires, checking for power all along, etc., if you have to just start following a wire. Better invest in a multi-meter or a test light, and a wiring diagram would help to keep track of any changes in the wire colors you are following. See if you can unplug the bulb sockets at the tails and then see if fuse still blows. Finding shorts can get so frustrating it will chase you into bars-beware.

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sounds like a short
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then look at te wires coming through the fire wall
check lighter too it might have a coin stuck in it as it will cause a short too

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