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Wiring diagram 1986 f250 rear lights

Complete wiring harness melted wish to make new one complete with trailer brakes and lighting

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1779 Answers

SOURCE: Looking for a wiring diagram for a 2006 Ford Expedition

7way- black is 12volt (power), brown, running lights, yellow is left turn signal and stop light, green is right turn signal and stop light, white is ground, blue is brakes, and orange is aux power (can be back up lights, if trailer equipped w/ them). 6way is the same, minus orange wire. I have run into some variations to the above color codes (brown, yellow and green only-sometimes these 3 are different than stated, but only mixed as that group, as to what they control- example would be green is running lights, brown and yellow are turn signal and stop lights, the others should be as stated), if you have any trouble with things not working properly, it may be due to these variations, although the above are pretty standard. If you have an ohm meter you can check as you go (check for power at black wire- should be constant 12v, turn on turn signal and check for power-it will fluctuate from approx. 12 volts to 0 volts as the signal power pulses in the wire) hit the brakes, blue wire should show power, etc. Let me know if you need more help as you go.

Posted on Apr 11, 2009

  • 50 Answers

SOURCE: need wire diagram to hook up trailer lights, truck not factory equipped w/harness,

I'm assuming you're just going to splice into the tail light wiring so that's what these wire colors are:
at the tail lamp 3 way connector:
black and yellow = park lamp
dark green and brown = left turn signal
there should be another connector with violet and black wire for reverse lights.
the stop lights are turned on through the turn signal circuits.

Posted on Apr 12, 2009

  • 580 Answers

SOURCE: trailer wiring harness diagrams W/o internet goose chase

Try this Link www.dodgeram.org/tech/mods/electric/trailer_wire.htm

Posted on Jul 10, 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

ftw1952
  • 10319 Answers

SOURCE: tail light wiring connectors and wiring diagram

A test light checking each connector would be faster and easier to do. Maybe somebody may have a illustration for you but by far a simple test light is all you need with a helper turning on the different lights as you check them out and writing all your findings down

Posted on Jan 22, 2010

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hope this helps...
JP

http://www.ford-trucks.com/forums/1150860-factory-trailer-plug-wiring-diagram.html

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2005 F250 Trailer lights


Not sure if you know that much about electrical wiring so I will go through it like you don't.
Take the trailer plug out of the female socket at the rear of the car, turn your running lights on, go to the female plug and using a test light check to see which one lights up the test light, that wire will be the running lights wire.
turn the running lights off and turn either your left or right indicator on and check at the plug to see which wire lights the tester, do this for the opposite indicator as well.
Turn the indicator off and get someone to hold their foot on the brake while you test the plug for power.
check the male plug at the rear wire terminals by putting it in the female plug and perform the same test as the female plug, if you have power to all the wires at the rear of the male plug go to the lights at the rear of the trailer and perform the same tests as before.
to get the both rear brake lights to come on you have to run a red wire from the brake light on the live wire side to the light on the opposite side to give it power when you apply the brakes for it to light up.
Turn the ignition on and turn your left or right indicator on again and check the wire for that side, if that is ok do the same for the other side then the running lights, you will have to run another wire off the running light wire to the opposite side of the trailer to give that side power to the lights
ther should be an earth wire from the plug that has to earth the trailer, all the lights also have to be earthed as they will not work if they aren't.
Try that and see how you go, if you do it right they should work for you

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