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Brake light fuse keeps blowing Noticed our brake ligths were not working...checked the fuses under the dash and they were fine...checked under the hood and found one blown...replaced it and the brake lights worked fine for about1/2hr...then blew the fuse again...possibly either just before or just as we were backing up.... thanks for the help
Take a look at the wiring to the brake lights. It is quite possible that over the years one of the wires has rubbed against another enough to short out, causing the blown fuses.
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fuses blow because of dead shorts or excess current draw
to blow a 15 amp fuse indicates a dead short
by disconnecting the rear lights , the problem is in something else you have replaced
could be a problem in the head light wiring
Not easy to diagnose. Most probable cause is an intermittent short in the power wiring between the hazard module under the dash and the brake and center stop lights, or a problem with either that module or brake light switch on the pedal. I would start by inspecting the socket wiring and interior of the sockets on the rear light modules.
Check fuse f3 located in fascia fuse box,below steering wheel just above data link connection 15AMP
Fuse under bonnet f7 also connected to dash/rear lights,but if this blows you would have no indicators as well
good luck barry
does the fuse keep blowing ?? it is also on the same line as the cigarette lighter if the fuse is blowing check that there is nothing stuck in the lighter socket that is shorting it out. Could also be a bad ground wire not makeinig contact.
check under the dash st the brake pedal,there is a brake light switch which is tied into the cruise control,you could try unplugging that and see if it fixes the problem(remember you will have no brake lights while it's unhooked) if the problem is gone replace the switch.
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