2006 Silverado 2500HD ec/sb, 6.6L LBZ, BD exhaust manifold, SD manifold, Airdog 100, S&B cold air kit, MBRP 304 catback exhaust, Tony's PCV reroute, Autometer boost & Pyro on a-pillar, Diablo Predator, 43 gal. gday, as soon as i turn my car to "on" the brake light fuse blows straight away, and i cant figure out why. My problem with the brake fuse blowing ended up being two nearly bare and broken wires going up along the right hinge into the rear lid. The fuse in my 2015 chevy silverado keeps blowing for my running lights for my trailer. It may sound complicated and expensive, but don't worry. Next I tried changing the brake light switch and what do you know, the fuse … On my way back after weekend, same happened and fuse blown again. I've checked the wires and the harnesses to each but I don't see anything obvious. • Did you check the back side of the plugs, where the wires go into it ? Doesn't matter if it's hooked to a trailer or not. If you keep blowing the brake fuse than you have a short in the system. i checked all the wiring from the rear of the cab back and repaired all the grounds and removed the trailer harness. I got too frustrated with mine tonight. I have brake lights and hazards. i checked all the wiring from the rear of the cab back and repaired all the grounds and removed the trailer harness. I'm back from WV after my prob with my 92 LC and now I'm having a prob with my 1994. Brake switch is good. Ford Super Duty (1999-2016) :: Fuse 13 Keeps Blowing - Brake Lights / Turn Signals And Hazards Don't Work Every time I step on the brakes, there is a bright spark in fuse #13. Hey guys previous owner of my truck wired up a brake controller, I noticed I have no power at controller (hooked it up to trailer and no go). Overtime I replace the fuse for my brake lights it blows again. It's most likely the brake light, but it best to check. Have you installed another brake light. It's far more likely you have an electrical system problem. brake light blown fuse FIXED Once again I thank everyone here. Can't figure out why the fuse keeps blowing SOURCE: 2006 f150 keeps blowing turn signal fuse. I was down in W. Virginia last weekend and I was told my brake lights were out. Next unplug the turn signal switch, then plug the stop light switch back in and press the brake pedal. The first thing to check is the trailer wiring if you have it. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Jump to Latest Follow 1 - 14 of 14 Posts. I had a friend that worked for the dealership so he and I fixed it in 30 minutes. Messages: 99. It is the 30 amp fuse top right hand side of under hood fuse panel. I disconnected all my trailer plug wiring (previous owner wired it, and good chance for problems I have read) and no change. In layman's terms when you apply the brake and the fuse blows the first thing to check is what the electricity is supplying. Post by Outlaw71 » Thu Feb 09, 2012 8:21 pm I have been restoring an 85 B2. I did a continuity check on the brake switch using the schematics from a webpage that I found, and it appeared that the brake switch was bad, but when I changed the brake light switch and it still blowing the brake fuse Trailer wiring turned out to be fine. Maybe you have an overload OR a short circuit. Titan fuel tank, Rhino-liner, Retrax cover, TracRac system, Lund Trident bug shield, Schefenacker TTT tow mirrors, Duraflaps, Cobra 29 LX CB, Pioneer AVIC-X910BT head unit, Allison deep pan & filter & Suncoast filter lock with Transynd fluid, MA pump rub fix, upgraded Setrab Transmission cooler, Raptor 5" oval step bars, 16k pullrite superglide 5th wheel hitch, MaxBrake trailer brake controller, CX1042 air horn behind grille, Viair 20007 air source in bed. If it did not blow than the problem is after the brake switch. Thanks for all the great advice! Not immediately only after 3 to 5 minute drive. Gonna try again tomorrow. I have a 2004 Chevy 2500 hd, the fuse for the trailer turn and brake light on the right side keeps blowing. Posted by John Casner on Jun 01, 2015 I replaced the trailer plug and inserted a new fuse. Went away this weekend with trailer, all working fine. Posted on Oct 09, 2009 Pulled covering off all wires and nothing is bare. Here's the history of things I have done to the car to give a clue as to what I could have screwed up or what's broken. Hopefully this will save you some money and time. Fitted a trailer lighting socket fitted or altered some wiring or had some accident damage. • It's the round 7 pin plug. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! Jump to Latest Follow ... You should try disconnecting the brake switch then put the fuse in if it blows still then its from the switch to the Rear bulbs. Yes I did Thats where I seen that the wires were tight. You see when a fuse blows it's because it's lost current, when current is lost the amp draw goes up and pops the fuse. The other side of the fuse goes to the stop light switch, which is activated by the brake pedal, and from there to the stop light bulbs. Please enable Cookies and reload the page. You may have a short on your brak wire in the back to the trailer connector. Take it apart and check inside to be sure that the wire connections are not shorted somehow to the taillight circuit. Blew the same fuse 3 times. 1,374 Posts. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. everytime i press the brakes the fuse for the brake lites blow. Many times there could be a problem with the wiring for the trailer. 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