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Trailer fuse is blown on 2012 ford f150

Where is fuse for trailer harness on 2012 f150 ford

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

juncro
  • 467 Answers

SOURCE: no power to fuel pump 1989 ford f150 no blown fuse

check the inetia switch

Posted on Jul 13, 2009

  • 1509 Answers

SOURCE: no left turn/brake light on trailer

The ford f250 has a saparate fuse panel for the trailor lights if using the ford wiring connectors and no ( aftermarket parts ) The stock fuse panel has the relays and fuses in a separate fuse panel near the brake master cylinder. The main power for the trailor brakes( If it has them) comes off the power distrbution box just to the left of the brake pedal hi on the firewall in the floorpan. The most likly cause after the fuses test good is the trailor itself. The flat four wire connector is easy to test with 12 volts ( jump box, Car battery, Battery charger, jumper cables) connect the grond ( negitive to the ground ( toung, or white wire in the plug ) Its the one thats different or oppisit the others. touch the positive to each one of the other wires one at a time to see if the lights come on. green is left turn and stop yellow is right turn and stop and brown is running lights.as long as the connections don't make a strong spark and the lights come on like described then the problem can be in the truck. The trailor doesnt light though and doesnt spark hard while test the lights and one wire doesnt light something leave it connected and start at the bulb and work forward bcak to the connector with a test light ( an ice pick device with a light bulb and a ground wire with an allagator clip to hook to ground.) Tes a good wire first to be sure the light is working and the ground your using is a good one. with say the running lights on remove the bulb and probe the socket base at the bulb base connectors and see the light work the other connector will be the brake turn light. Change to the wire at the connector that runs the light to be tested and see if it lights the test light. if not trace the wire to the front of the trailor or just run a new wire from the connector al the way to the light base. If this proves to be too much troble (hard to trace all the wires appear old and crodded, just dept store, or discount auto parts store buy a universal trailor lighting kit its all wired up and ready to go for less than $40 Has the wire and the two lights, install the lights and thread the wire, plug in and your done! Again if the truck is bad make sure the regular lights work right first. then again with the test light grounded test all the plugs wires at the plug with the tailor disconnectedand with the hazard flashers on and the parkings lights on all wires should light the test light except the white grond and it shouldn't even light dimmly. if it does repair where it connects to the frame of the truck . most problems when you find them on a system that used to work OK are crodded connections and broken wires always cheack the bulbs and replace regularly with new ones as trailors carrode and bounce and pound mre than the truck and heavy dudy bulbs should be used most common are the 1157 that can be upgraded to the 2057 fit the same and sometimes even cost the same. If you think your going to do this alot 10 blub packages of bulbs cost about the same as 2 bubble pacs of two blubs or 6 blubs for free. Brand name bulbs last longer and fail for vibration less than the never heard of bulbs that all of the stores are selling now. Wagner GE Sylviania and others you reconize may save you more than a traffic stop. they may unknowingly save you from the jeporardly that the policeman in the long run is trying to save you from. They got their job to do, we hired em, lets not have them work on us the other guy will be fine. The truck follow the dead wire that should be on to the front of the truck or find it at the front of the truck turned on and cut it install a new wire to the rear of the truck cut the wire near the connector and connect your new wire. If you would like the connection to last solder and heat shrink are best, crimp connections work and are faster but need to be crimped with the right tool again if you expect to do this kind of repair very often the more expensive tools do abetter job The connectors can be bought as heat shrink and are best sealed with a heat gun ( an extra hot blow drier for hair ) A lighter or a propane torch works but working with fire is just that you know who you are that can control this kind of work if you drop things and can't get the keys into the locks in your daily life on the first try don't use flame. Tape will work but seems to never last very long again the brand name tape the costs so muck you can't beleive it the cme from the name brand auto parts store and is their Hi dollar choice you may do just fine carefully installed on clean wire and connectors. Even well done tapedd connections seem to fail in around a year. A seasoned mechanic in a pro shop is likly to use the right techniques and is going to charge for his time but may save you big money down the road as the wiring will stay good and the accidents caused by lights not working right and major wiring fires that require major harness repairs can be avoided. Most vehicals don't have wire harnesses made as replacement parts so if you need on the manufacturer may make you one but they will make you wait awhile and they'll get way deep in your pocket or credit card account at the pay window to the point you may have to call the bank to see why not. Were Talking over $1000 for a part harness there can be as many as three or four for some cars imports can be as few as one and you better believe that some older vehicals are totalled easyly by needing the whole harness and paying to have it installed. Figure $1000 install fee I've been the man hired more than once. even at the dealers I've worked at. The boss treats me real nice when the job is going. as the customers money burns down hardest of any job going in the shop. Don't burn one if you can help it. Always be ready to disconnect the battery and try it before you get going. even a helper to disconnect as soon as troble shows is best. Thats all the helper is allowed to do too! Have fun anything can be fixed with money just your persoal saftey can be way out there in the area where money can't buy. Be careful and take you time working on live circuits. 12 volts won't get you but the hybride cars and spark systems have the power to kill you and most of the circuits are marked. If in dought have a pro do it and consider the money well spent.

Posted on Aug 11, 2009

sscullys
  • 984 Answers

SOURCE: 2001 Ford F150 need a fuse box diagram. Hooked up

You can download a PDF version of the owners manual from Ford

https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

Posted on Nov 03, 2009

sscullys
  • 984 Answers

SOURCE: F150 Ford 1998 is there a fuse for a trailer and

There are a few fuses for the trailer tow adapter.

1st, is theodd location on the 97-98, engine mini fuse panel has a 20 A fuse forthe stop / turn lamps. Have seen it covered in tape from the factory onsome 97-98 MY trucks.
This is on page 142 in the owners 1997 manual, all the revisions for the 1998 owners manual I have seen do not include this fuse box for some reason.

Download a PDF version from Ford, for the 1997 MY at :

https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

This is a picture of the Power Distribution Box, additional relay box and engine mini fuse panel with the covers off. The 20A in the upper right panel with the red base, is the trailer stop/turn fuse.
3b8aa6c.jpg

The others :
1. Power Distribution Panel / engine compartment fuse panel
Fuse #1 - Trailer tow back-up and tail lamps
Fuse #16 - Trailer tow battery charge and stop/turn lamps
Fuse #28 - Trailer tow electronic brake

2. Instrument Panel Fuses ( cab fuse panel by hood release )
#23 - trailer tow battery charge relay

Posted on Nov 12, 2009

Testimonial: "Thank you, thank you, thank you it was the 20 amp fuse. The lights now work! "

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1 Answer

Now power to trailer lights on my 2012 f150


Check the fuse. There should be a black box under the hood that contains the fuses and relays. There is a fuse box normally on the left side kick panel under the dash with fuses also. You can check the fuses with an ordinary test light or by sight. This is the easiest for now.

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as the trailer plug is controlled by several fuses or a light control module
if it is a module then thee will be a fuse for it (module)
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trailer lights are controlled by the vehicle fuses. Check the fuses in the car for blown out

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I have a 2005 ford f550 with factory brake controler & factory trailer wire plug. On the trailer wiring plug I am not getting power to the turn signals or brake lights. The turn signals and brake...


There is a fuse box under the hood that has the fuses that control the wire harness. There are at least 2 boxes, mine were on the drivers side wheel well near the rear of the engine compartment.

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My 1990 f150 has no brake light ,turn signal or tag light on the left (drivers) side. I have replaced the brake switch and the fuse. Does this side need to rewired? Is it possible the wire is broken...


use a multimeter to check wires. you should get a voltage reading if your wires are good. check fuses. disconnect trailer harness and try checking wires from that point . if you have voltage you may want to check the wiring of the trailer harness to be certain it is correct. you may also want to check your ground to that side. if fuses are blown you have a short

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1 Answer

Hi got brake light but no tail light fuse all good can any one help me please


Check the rear harness wiring harness for corrosion or a broken wire. Should be the brown wire that power up tail lights. Also if you have trailer wiring disconnect it and see if it goes away. Trailer wiring very often cause high resistence due to how they are connected.

Jan 27, 2011 | 1983 Ford F150

1 Answer

Installed electric trailer brake controler in 03 ford 150 not getting any power to trailer plug


Did you wire it with the instructions that came with the brake actuator? Check to see that yoir wiring is correct and if it is....check your fuse box for a blown fuse

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Need fuse panel diagram for 2004 ford f150 stx right brake & turn signal did not work on trailer when i went to rent one from uhaul. i need to know what fuse to check for that paticular area.


If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

The fuses you are looking for are cab fuse panel fuses #36 & #42 are the stop / turn lamps for the trailer tow adapters.

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1 Answer

No power to the trailer light harness.


The fuses for your truck also serve the trailer lights, so there is no seperate fuse. When there are no lights at all the first thing to suspect is that the ground is poor. That just means that there is corrosion between the ground wire and the frame of the truck. In the back of the truck trace the ground wire from the tail lights to where it is attached to the frame. Disconnect the wire from the frame and use emery cloth to clean up the frame and the wire contact point. Then be sure to tighten it down real well.

Nov 18, 2009 | 1991 Ford F150

1 Answer

All lights work on truck but no running lights on trailer


did you test the trailer light fuses under the hood? if they are blown your TRAILER HAS A SHORT WHICH IS THE PROBLEM 99% OF THE TIME.

Jul 01, 2009 | 1995 Ford F150 Styleside Regular Cab

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