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F12 fuse for trailer brake lights keeps blowing on 2013 freightliner truck

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

MNfisherman
  • 11896 Answers

SOURCE: Tailer running lighs dont work

There should be a fusible link somewhere in the wiring. That should be where the problem is at.

Posted on Jan 19, 2009

  • 1 Answer

SOURCE: # 15 fuse keeps blowing on a Ford f150 2003 model

try a #20 amp fuse

Posted on Apr 23, 2009

co7196
  • 3433 Answers

SOURCE: Fuse for trailer right turn signal and brake blows intermittently

abad ground on that tail light unit could affect current load when turn and stop are used simultaneously. Although one side only is affected make sure of good grnd between trailer and tow vehicle. focust on the tail light unit in question. Replace the bulb. though rare, bulbs have been known to be the problem. If the bulb is breaking filiments ck the filiment orientation. filiments last longer in vertical orientation, where horizontal permits vibration to break the heated filiment when brake is applied.. good luck and let me know if This helped or not.

Posted on May 06, 2009

co7196
  • 3433 Answers

SOURCE: 2001 Dodge Ram 2500, no running lights on trailer

The truck is protecting itself from the load impose by the trailer.. Chk the plug on the truck for wire gauge size. Turn any electrical loads off on the trailer, any and all. If fuse still blows then the fuse is either underated or the trailer has a dead short. In fact turn trail main power panel of. All lights work you say. So ck the inverter for defect byturning off the inverter on one of the trailers.

Posted on May 28, 2009

tneubauer
  • 437 Answers

SOURCE: 1993 Ford Taurus brake light fuse keeps blowing

Look for a short on the LG/R wire coming out of the BOO (brake on/off) switch.

Posted on Jun 06, 2009

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1 Answer

Why does my turn signal/ hazard light fuse keep blowing out


you have a short in one of the light sockets or a worn wire from the wiring harness. could be the flasher assembly. are the turn signals different bulbs from the brake lights? Does using the brakes blow the fuse? (Rear lights or brake light switch on brake pedal). left or right turn signal blowing the fuse will tell which side has the short. 4 ways only, replace the relay.

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1 Answer

2004 Chevy Express 1500 keeps blowing trailer light fuse


If you're only blowing the fuse while the trailer is plugged in, the problem is in the trailer/wiring. This takes into account that the truck has a factory installed 7 way receptacle. If that's not the case, the problem can be in the incorrectly wired truck and the trailer is ok.

On the truck, looking into the 7 way receptacle should be as follows.
Top left=Tail Lights
Top right=12v steady source/charge line
Left middle=Left turn/brake
Right middle=Right turn/brake
Left bottom=ground
Right bottom=brake controller output
Center=reverse lights if your trailer is equipped.

Your trailer plug should mirror this.

This is the standard.

Oct 25, 2013 | 2005 Chevrolet Suburban

1 Answer

1998 Chevy Silverado 1500 Brake light fuse blew, replaced, fuse blew again, replaced relay and fuses. both under hood and in side fuse panel. Fuses keep blowing on turn signal and brake lights. Checked...


you obviously have a short to ground on one of the wires to the back (if it was the front the brake shouldn't blow the fuse). the most common problem is usually in a trailer light harness. if you look under the drivers side rear of the truck, down under the tail light there will be a plugin junction. pull this plug-in apart and see if the fuse still blows. if it does then the problem is forward of that connector, if it doesn't then the problem is behind that plugin. be sure to check for "green death" (electrical corrosion) at all joints especially any trailer hook ups.

Oct 25, 2012 | 1999 Chevrolet Silverado 1500

1 Answer

Brake light fuse keeps blowing in my 1997 Suburban only when towing trailers.


If the fuse blows on different trailers then it's all down to the vehicle. You either have incorrect wiring on the vehicle, a short OR the fuse is not of a high enough value to cope with the additional brake lights? You could try removing all the trailer bulbs EXCEPT the brake lights - e.g. if it's trying to power up the indicators too? That would stop the fuse blowing...... OR remove the brake bulbs from the vehicle & see if it operates the trailer without blowing...... Check the total wattage of ALL the brake lamps & see if the fuse is actually of a high enough rating? Be aware though that increasing the value of the fuse could cause damage elsewhere! As a rough guide a 25 watt bulb will pull around 2 amps at 12 volts - so 4 bulbs may pull up to 8 amps & clearly blow a 5 amp fuse! If in doubt take it to an auto electrician...... The wiring needs to be correctly protected!

Apr 02, 2017 | Cars & Trucks

2 Answers

I have a 1996 Suburban that keeps blowing fuses on break lights


Check the turn signal flasher,and the trailer wire adapter that plugs in under the rear of the truck.Check the brake light switch,to see if it is grounding out on something.

Jan 03, 2010 | 1996 GMC Suburban

2 Answers

2000 Ford Excursion brake and tail light fuses keep blowing out.


hows your trailer hitch wireing old school 4 prong?check that wireing.the trailer hitct wireing generally ends up being the problem.checkwhere thay are tied in.and see if they are gettn grounded out.

Nov 28, 2009 | 2000 Ford Excursion

1 Answer

2006 f150 keeps blowing turn signal fuse


It sounds like the fuse is doing what it is supposed to do, and burning out when there is a short circuit. Check the wiring from the fuse block back to the lights and pay special attention to the trailer connection.

Oct 09, 2009 | 2006 Ford F-150

3 Answers

2001 Chevy Silverado. When I plug in the trailer


its in the engine compartment in the fuse box on the drivers side next to battery

Oct 07, 2009 | 2001 Chevrolet Silverado

1 Answer

Brake light fuse keeps blowing no brake light


first remove the brake globe on the side and see if they are blown, can cause fuse to blow. does the vehicle have a towbar? if it does check the wiring at the trailer plug, if any wires are loose and touching they will blow the fuse, if not that has anything been fitted recently? mobile phone kit, stereo... maybe bad wiring, if none of them, prob require auto electrican

Jul 08, 2009 | 2000 Nissan Maxima

2 Answers

Break / hazard light fuses keep blowing


check both brake lights for moisture getting into them.

May 25, 2008 | 1999 Cadillac Escalade

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