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Why does my 1986 corvette keep blowing brake light fuses when i apply the brakes

by Jerry Stephen
(Saratoga Springs NY)

Why does my 1986 corvette keep blowing fuses when i apply my brakes?

Comments for Why does my 1986 corvette keep blowing brake light fuses when i apply the brakes

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Apr 30, 2016
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starstarstarstarstar 		brake light fuse blows when hitting brake
by: ray

check tuirn signal in steering colum they short out and will do this
Nov 16, 2010
Rating
starstarstarstarstar 		short circuit btake lights
by: Auto Appraiser * Ned

one process of elimination you may want to check. to locate a dead short of a positive wire in a 12 volt system is to (disconnect the positive battery cable)..make sure all doors are closed,ignition is off, and any other source such as underhood light or anything that may draw 12 volts is OFF/CIRCUIT CLOSED. once every source of 12 volt current circuit draw is closed, connect a test light lead direct to the battery positive terminal and then connect the other end to the positive cable.(jump a test light in between the positive cable and the battery positive terminal) if test light goes on (lights up) this means that a positive wire is shorted to metal ground somewhere. If No test light goes on...then apply brake, if test light goes on brake wiring has short. now disconnect unplug 1 brake light socket at a time and re-apply brake. repeat this process till test light stays out and thats the socket wiring that is the shorted out one. hopefully I explained it well enough...it may get confusing...hopefully this will help you determine where the shorted out wire/switch/or socket is. first thing to check is that all bulbs are the same recommended number for the vehicle socket application. thanks
Nov 16, 2010
Rating
starstarstarstarstar 		short circuit btake lights
by: Auto Appraiser * Ned

one process of elimination you may want to check. to locate a dead short of a positive wire in a 12 volt system is to (disconnect the positive battery cable)..make sure all doors are closed,ignition is off, and any other source such as underhood light or anything that may draw 12 volts is OFF/CIRCUIT CLOSED. once every source of 12 volt current circuit draw is closed, connect a test light lead direct to the battery positive terminal and then connect the other end to the positive cable.(jump a test light in between the positive cable and the battery positive terminal) if test light goes on (lights up) this means that a positive wire is shorted to metal ground somewhere. If No test light goes on...then apply brake, if test light goes on brake wiring has short. now disconnect unplug 1 brake light socket at a time and re-apply brake. repeat this process till test light stays out and thats the socket wiring that is the shorted out one. hopefully I explained it well enough...it may get confusing...hopefully this will help you determine where the shorted out wire/switch/or socket is. first thing to check is that all bulbs are the same recommended number for the vehicle socket application. thanks
Nov 14, 2010
Rating
starstarstarstarstar 		Short to ground
by: Corvette-web-central

You have a hot 12V power lead going to the lights or at the light shorting to ground. Fuses are installed to protect the wiring. So logic says if the fuse is blown you have a wiring issue!

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