Your brake light fuse blew each time you insert a new one it blows immediately What do you do to fix this?

Answer 1

if your blowing the fuse as soon as it is put in then unless the brake switch is bad it wont be in the light sockets or the wiring after the switch. the short will be on one of the "hot" wires or wire between the fuse and the light switch or the brake light switch

Answer 2

DO NOT PUT IN A HEAVIER FUSE. You have a short or your breaklight switch is sticking. When brakelight fuses blow as they are inserted, the circuit is in a closed state. Because it is your tail/stoplight, I would look under the dash, behind the brake pedal and look very carefully at the switch attached to the pedal arm. Move the brake pedal back and forth with your hand while watching. You are checking to see if the actuator pin is moving freely. If you aren't sure, use your fingers and try pushing in on the pin and feel for it to return. Also while you are there, look at the wiring and the connectors, check to see if they are broken, burnt or loose. Sometimes an errant foot will kick a wire loose and a short may occur. At this point, disconnect your battery and pull the brakelight switch making sure the wires cannot touch (ground) on any metal beneath the dash. Insert your new fuse and reconnect the battery. If the fuse blows, your problem is not the brakelight switch, but you have a secondary short circuit. If the fuse doesn't blow, disconnect the battery and reconnect the brakelight switch, then reconnect the battery. IF the fuse blows, think seriously about replacing the brakelight switch. This is a fairly common problem especially if your car has had an alarm system, remote start/disable system put in. IF this condition only began after having such a system installed, go back to the installer. You may also check to see if the circuit responsible for the car's lights flashing when arming and disarming has it's own fuse, if so, your problem may be found there.

I hope this helps.

Answer 3

Brake Light Fuse Keeps Blowing

Answer 4

Since the fuse blows immediately when it is installed. You have a dead short in the wiring. I doubt if it is in the brakelight switch, but anything is possible.

You would need a multimeter to help determine the problem. Pull the fuse and hook up the meter on ohms scale. Ground one lead and hook the other lead to the terminal that shows a low ohm reading. Now start tracing wires. I would start at the rear end with the tail light socket. You can wiggle the wires and see if the ohm reading changes. Keep inspecting the wire and working forward until you find the problem. Notice the color of the wires that have the brake light contacts. A copy of the wiring diagram will help determine the points that the wire to and will make it easier to trace.

Also, if any modifications have been done recently, that would be another good place to start.

You may find something obvious, or it may take you all day to find the problem. Good luck.

Answer 5

uh fix the short?

Ok smart remarks off....

You didn't say what kind of vehicle, and which fuse exactly as some people a brake light fuse would be for the exterior lights only (as there are different fuses for those lights compared to the one for the brake light/switch itself)

Usually we find either the brake switch or turn signal switch and/or wiring burnt or out of the connector causing the issue.. usually the brake switch wire has burned off and is shorting against the brake pedal causing the concern

Answer 6

Hi......that sux......i had the same problem on a 88 camaro a few years back. There is a short in the system. You have to find a mechanic that can trace the short and find it. That can get expensive. Some guys can figure it out in an hour, some guys advertise in the phone book "auto electical specialists". I spent $500 with the latter, and it never worked. I sold the car with the problem. I hope you fare better than i did.........Good Luck!!!

Answer 7

most definately a short in the tail light circuit, check the bulb sockets first, then if you don't find it check the wiring from the lights all the way to the fusebox.

Answer 8

Check your wiring for the brake lights. Particularly if it has been raining.

Answer 9

It doesn't blow till you put on the brake also our turn signal does the same thing as soon as I put on the turn signal it blows the fuse

Answer 10

find the short and fix it.
check your lights to see if you have a short in one of the sockets.