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Dead short in circuit?
Remove stop light bulbs apply brakes and check to see if fuse continues to blow check the sockets for bare wires or defective sockets
Check the stop light switch at upper end of brake pedal for bare or shorted wires
check wiring to lights (under vehicle and in trunk) for signs of chafed or shorted wiring
disconnect the large harness on the left side of the truck, connect an ohms meter between the black (ground) wire and then probe the rest of the connections until one reads almost zero that's the one.
I found the harness going into the truck lid was messed up. All the insulation on all the wires was broken so it was shorting out.
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∙ 12y ago
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You keep blowing the brake light fuse in your focus?
Are both your brake lights blowing out? If it affects only one light: it could be a bad light socket, or a pinched or frayed wire that is shorting out.
What should you do if the brake lights keep going out on your 1992 Chevy Cavalier?
Are you blowing fuses or are the bulbs blowing? Blowing fuses would be a sign of any wires or metal contacts in your brake circuit grounding out or shorting on themselves. You'll have to check all of the wiring in your brake light/switch circuit to be sure.
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How do you remove the brake light cover on a ford focus
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Bad bulbs or brake light switch.
Why would brake light fuses keep blowing on a 1998 Dodge Neon?
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