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Taillight wiring diagram

I am trying to work out the wiring for a trailer I am building. I am using a 2012 ranger style side and have a red+yellow stripe, red+green stripe, green+yellow stripe, green and black. Can you please tell which wire is for what on a standard seven pin plug?

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  • Cars & Trucks Master
  • 3,103 Answers

One is running lights.. one is left signal,,one is right signal .one is ground and there are wires for electric brakes..heavy ones..up to 4 of them..

Posted on Jan 02, 2014

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MNfisherman
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SOURCE: 1995 Ford Windstar Speaker Coding Scheme.

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Posted on Jan 17, 2009

  • 115 Answers

SOURCE: I HAVE A FLAT BED TRAILER WITH 4 WIRES (LEFT SIDE:

moz-screenshot-2.pngmoz-screenshot-3.pngmoz-screenshot-4.pngHere is a wiring diagram


6wayconndiagram.jpg

Posted on Sep 05, 2009

ourhowse
  • 2007 Answers

SOURCE: I have a pre fab wiring harness on my trailer with

I assume you only want lights, brake lights and signals. Your best bet is to plug a wire onto your truck... the flat plug, and turn , first the left signal, on. Use a test light to see which part of the plug in is flashing. Once you have established that, just keep plugging the other end of the wire into the trailer plug, until you get the left turn signal flashing on the trailer. Then repeat the process for lights etc.
You can also take the plug-in apart on the trailer. Inside the plug in it will have l/t, r/t, s, etc. (left turn, right turn, stop, etc.) There will be a very small arrow pointing to the terminal connection that is for each.

Posted on Nov 03, 2009

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Hitchguy84
  • 44 Answers

SOURCE: it was wired for a 4 wire flat trailer plug. the

You need to install a 3-2 wire converter. I suggest a CURT 56175 then
1.Using a test lamp, identify the corresponding wires in the harness for the left turn, right turn, tail lights and brake lights. 3. Temporarily remove the vehicle's negative battery cable from the battery. 4. Using wire taps, attach the input wires of the tail light converter to the corresponding vehicle harness wires identified in step 2 as indicated.
Converter Brown Wire: Tail Light Circuit Converter Yellow Wire: Left Turn Circuit Converter Red Wire: Brake Light Circuit Converter Green Wire: Right Turn Circuit
5. Locate a suitable mounting location for the ground eyelet on the vehicle near the converter on vehicle's frame or cross member.
And your ready to tow!

Posted on Mar 23, 2011

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1 Answer

Where can i find a identification diagram for a fuse box on a 2007 dodge ram 1500?


Unless I'm mistaken, there is no fuse dedicated to the trailer lights - they're wired directly to the matching truck lights - the running lights & taillights should be wired directly to your truck's taillights.

Check your trailer wiring from the truck plug all the way back. I've seen lots of poor connections in the truck plug, as well as any of those squeeze splices you might have in your trailer. Look also at the ground wiring for your running lights.

Aug 01, 2014 | 2007 Dodge Ram Truck

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I have a standard 4 flat trailer plug on my truck but my trailer plug is also a 4 flat plug but has two brown wires going to one prong. how do i hook them together to make all my lights on trailer work


The 4-wire flat plugs usually have a white (ground), green (right brake/turn) yellow (left brake/turn) and brown (taillights - left and right). If your brake and turn lights work but the taillights don't, check the plugs (trailer and truck sides) for corrosion, and chek both the trailer and truck wiring harnesses for chafed insulation and bare conductors on the brown wires. Likewiae if the taillights work and the brake/turn lights don't, perform the same checks on those wires. And last but not least, be sure that the white wires (truck and trailer) are grounded well to the truck body and trailer frame.

Oct 14, 2013 | Cars & Trucks

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Instructions for wiring a moving trailer connector


accessconnect_logo.jpg


Trailer Wiring Diagrams 4 Way Systems

4 way flat molded connectors allow basic hookup for three lighting functions; right turn signal / stop light (green), left turn signal / stop light (yellow), taillight / license / side marker (brown) and a ground (white).

4%20way%20wiring.jpg 4way_vehicle.jpg 4 way tow vehicle side.
4way_trailer.jpg 4 way trailer side.
5 Way Systems

Same as 4 way system listed above but adds a extra blue wire for brake signal or auxiliary power. Used on pop up camper trailers or utility / boat trailers.
5way_vehicle.jpg 5 way tow vehicle side.
5way_trailer.jpg 5 way trailer side.
6 Way System, Rectangle Plug 3/4 inch by 1 inch 6 way rectangle connectors right turn signal (green), left turn signal (yellow), taillight (brown), ground (white). The red and blue wire can be used for brake control or auxiliary. Use on a small motorcycle trailer, snowmobile trailer or utility trailer. Can also be used as custom wiring on trailers with 3 light/wire systems. See "Tow Vehicle Taillight Wiring" below.
6way_rectangle_1.jpg 6 way tow vehicle side.
6way_rectangle_2.jpg 6 way trailer side.
6 Way Systems, Round Plug

Round 1 1/4" diameter metal connector allows 1 or 2 additional wiring and lighting functions such as back up lights, auxiliary 12v power or electric brakes. Note: The black (sometimes red) 12v and blue electric brakes wire may need to be reversed to suit the trailer. Check with a test light or VOM. Uses: horse trailer, travel trailers, landscaping trailer, car trailer, etc.


6way_vehicle.jpg 6 way tow vehicle side.
6way_trailer.jpg 6 way trailer side.
7 Way Systems

Round 2" diameter connector allows additional pin for auxiliary 12 volt power or backup lights. Uses: heavy duty landscaping trailer, car trailer, boat trailers, horse trailer, travel trailer, construction trailer, etc. Check with a test light or VOM.


7way_vehicle.jpg 7 way RV flat blade tow vehicle side.
7way_trailer.jpg 7 way RV flat blade trailer side.

Jan 01, 2011 | 2001 Pontiac Montana

1 Answer

How do i install a wiring harness for a trailer on a 2002 ford focus wagon?


  • Loosen and pull back the carpeting in the back of the trunk behind the taillights.
  • Step 2 Remove the plastic wingnuts that secure the taillight to the vehicle's body.
  • Step 3 Separate the taillights from the vehicle's body, but do not disconnect the wiring.
    Installing the Connector
  • Step 1 Examine the wiring harness on each taillight. There will be a plastic connector on each side that must be separated to insert the wiring harness connector.
  • Step 2 Thread the trailer wiring connectors through holes in the body behind each taillight. Follow the instructions provided with the connector to determine which connector belongs in which side of the vehicle.
  • Step 3 Insert the wiring connectors into the vehicle's wiring harness.
    Reinstalling the Taillights
  • Step 1 Push the taillights into position against the body and reinstall the plastic wingnuts that secure them. Be careful not to crush the wiring.
  • Step 2 Route the trailer wiring underneath the carpeting in the trunk, so that the trailer connector can extend out between the trunk lid and bumper when in use, and be tucked into the trunk when not in use.
  • Step 3 Reposition the trunk carpet over the taillight housing.
  • Jul 02, 2010 | 2002 Ford SVT Focus

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    I want to tow the jeep and need to know thecorrect


    Review this information and links:
    - Trailer 4 Way System Diagram
    - Accesories and Instructions

    d456d39.jpg

    Instructions
    1.) Determine a suitable location for mounting the circuit protected converter in an out of the way spot near the left tail lights in the trunk or on the frame rail, if mounted under the towing vehicle.
    2.) Ground the white ground wire by placing the ring terminal under an existing screw attached to a clean metal surface or by drilling another 3/32" hole and using one of the self tapping screws provided.
    3.) Disconnect the tow vehicle's negative (-) battery cable.
    4.) Cut the in-line fuse holder loop wiring.
    5.) Using a ring terminal (3/8 inch for top terminal or 1/2 inch for side terminal), attach an in-line fuse holder (with fuse removed) to the positive (+) terminal of the battery.
    6.) Route black 12 gauge wire from the fuse holder to the converter passing under or through the vehicle.
    Note: When passing the wire through sheet metal always go through an existing grommet, add a grommet or use silicone rubber to insulate the wire from the hole.
    7.) Attach 12 gauge wire to the fuse holder with the yellow **** connector.
    8.) Reconnect the tow vehicle (-) negative battery cable. Note: See tow vehicle owners manual for any special battery reconnection and instructions.
    9.) Determine if the towing vehicle has a 2 wire or 3 wire system.

    2 Wire System
    • Has same bulb for stop and turn signals.
    • Some vehicles have a separate bulb for stoplights but also have a combination bulb for turn and stop. These cars should be wired as 2 wire systems, using the wires going to the common bulbs.
    • Note: Attach the crimp on spade terminal provided to the red stop wire and ground it along with the white wire.

    3 Wire System
    • Has amber turn signals, separate.
    • Has separate bulbs for stop and turn signals (both red).
    • Note: Attach red wire to tow vehicles brake light circuit.
    10.) Using a circuit tester or volt ohm meter (VOM), determine which wire attached to the left taillight assembly is the left turn wire. Attach the units yellow left turn wire to this wire using one of the blue wire taps provided. Determine which wire is the taillight circuit and attach the module's brown tail / license wire to it with a wire tap. Determine which wire is the stop circuit and attach the module's red stop wire to it with a wire tap (for 3 wire systems only, see step 9).
    11.) Route the units green right turn wire to the right side of the vehicle. Determine which wire is the right turn circuit and attach the green wire to it with a wire tap.
    12.) Install the fuse into fuse holder and test the installation with a circuit light or trailer.
    13.) Secure all loose wiring with cable ties.

    Testing Procedure
    With the ground wire connected and all of the other circuits attached, attach the ground lead of a circuit tester to the exposed ground terminal of the 4-flat end. Activate the tow vehicle left turn, right turn, tail and stop lights one at a time. Probe the three receptacles of the 4-flat end to confirm proper functions. If testing with a trailer, make the proper connections and do the same test as the circuit tester using the trailer lights. If a function on the trailer lights does not work properly, disconnect the trailer lights, turn functions on vehicle off and recheck function with the unit with a circuit tester. Then check the trailer wiring for potential circuit problems.

    I hope help you with this (remember rated this help).

    Good luck.

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    Trailer end; Red=Brake
    Brown=Running lights
    Yellow=Left
    Green=Right
    White=Ground
    You will need a turn and brake signal box IF, you have different bulbs for brake and turn lamps. If the brake and turn bulbs are one(red)lens than no box will be required. Thanks, Dana

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    2003 ford ranger 7 pin wiring for a trailer all I need is what the colors on the wiring are blue/yellow/green/black/brown/white


    White is ground, black is power to trailer battery trickle charge, blue is brakes, green is tail/running lights, red is left turn signal and left brake light, brown is right turn signal and right brake light, yellow is aux power/back up lights. This is the general color coding, there are exceptions, white, black, and blue are pretty much always as listed above, sometimes the others vary. If you find you are having trouble, post any further questions here, I'll be glad to help out. Curt

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    Trailer light problem


    Check it with a test light. White-ground, Yellow-left turn, Green-right turn, Brown-tailights. Check it on the truck first. There are seperate fuses for just the trailer wiring in the fuse box under the hood. The Blue and Red wires are for Trailer brakes, don't worry about those.

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    Trailer Lighting Kit


    Do u have a 4,5,6,or 7 way (wire) system? If it's 4 way it allows basic hookup for 3 lighting functions:
    GREEN is right turn signal and stop light, YELLOW is left turn signal and stop light, BROWN is license, and side marker lights, WHITE is ground.

    5way is same as above, but adds a BLUE wire for brake signal or aux. power. Its used on pop up campers, utility and boat trailers.

    6way (rectangle plug) green=right turn signal, yellow=left turn signal, brown=taillight, white=ground, red and blue can be used for brake control or auxilary. Used on small motorcycle trailers, snowmobile trailers, utility trailers.

    6way Round Plug, same as above, but blue is electric brakes, and black (sometimes red,) 12v; note:sometimes red/black need to be reversed w/ blue to suit the trailer.

    7way adds an additional pin at plug in for 12volt power or back up lights. Whoa! hope that answers your question w/out confusing u. Let me know if u need more info.

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