Question about Dodge Grand Caravan

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Have a four flat utility trailer wiring. Need to know which wire to splice into for left turn signal, brake & running lights in the back of van. Also need to know for right as well.

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  • Dodge Master
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The yellow wire is the left signal the brown is the taillight wire the green wire is the right signal wire and the white wire is the ground wire.the brake lights work through the signal wires.think of it this way yellow markings on the roadway is left of the car,green grass is right of the car brown is the darkness of the road behind you and the only thing i have for white wire is clouds(even if its opposite of ground)

Posted on Mar 16, 2011

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1 Answer

Cant get running lights to work on trailer


you need a ground wire also..add a ground and it should work.. trailer wiring is like this..white/ground..brown/tail..yellow/brake..and two greens a lighter one for left signal and a darker one for right.. find each one seperately on the jeep because these colors wont match it..and hook them up independently before taping the whole thing up..be checking and adding heavier fuses like 25 or 30 amp due to the extra wire load..

Dec 25, 2013 | Jeep Cherokee Cars & Trucks

1 Answer

When I tow with my car the left blinker doesn't work on the trailer. There is a 7 pin round plug on the car, with a flat adapter to the flat pin on the trailer. I have had the same problem with at...


Hello Carol, The 7 way is for use with a brake controller and/or a trailer that has electric brakes. The 4 way flat is a basic trailer plug connector.
Connect as follows:
Green wire- Connects to the vehicles right turn wire harness & provides brake light and right turn signal on trailer.

Yellow wire- Connects to vehicles left turn wire & powers brake light & Left turn signal on trailer

White wire- Ground

Brown Wire- Tail/ marker/ license plate lights

The Blue, Red & Purple wires on the 7 way will not be used on the adapter, those are for brakes.

I hope this information is helpful.

mr_brokrench_4.jpg

Sep 18, 2011 | Honda Accord Cars & Trucks

1 Answer

04 toyota corrolla I need to wire a harness for a utility trailer, not sure how many wires are needed and do I need 1 or 2 lights on each side of trailer. not sure on these newer cars with more than 4...


First and foremost, installing the wiring harness is not the easiest task, but not the most difficult. Typically you will use a 4 pole harness. One wire goes to tail light on, second wire goes to brake light, then one to left signal and right signal. You will need a test light of some sort in order to determine the hot or live wire for each bulb. Once you confirm the wire you can simply splice the wire off the harness into the factory harness. One thing I will mention at this point is using a typical four pin instead of a adapter that are a it more expensive can cause more draw on your cars electrical system. Although I have never had any problems on my cars. I have heard situations in which wires have become cooked.

As far as trailer lights go it may depend on the state. Here in IL, you can get away with running 1 light on each side of the trailer granted all functions work-brake, running lights and turn signals.

Good luck

May 26, 2011 | Toyota Corolla Cars & Trucks

1 Answer

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

Need to hook uo a flat four trailer conector ,dont know ford


The rear lights :

Brown is the parking lamps ( either side )

Driver's side Stop / Turn : Light green w/ White stripe wire
Pass Side Stop / Turn : White w/ Light blue stripe wire

Another option ( for use with the factory trailer circuits ) is to add / replace the factory tow adapter. eTrailer has them, if you are interested. This is the type adapter as Ford p/n: YL3Z-13A576-G. You would need to install the relay and the fuses for the trailer circuits if you do this.

Nov 03, 2009 | 2001 Ford F150 Styleside SuperCrew

2 Answers

Here's my problem...My truck has four wires for my trailer, Red-Brake, Brown- Running lights, Yellow-Left signal and Green-Right signal. My trailer also has four wires, Yellow-Left signal, Green-Right...


Well you have what is called a BUGGER.5 dont go into 4 so the problem is either the trailer is OLD and never had stop lights OR the white wire is your stop lights and it earths through the towball (but it shouldent ) so either someone has cut out the stop light wire .so check rear lights What colour is stoplight wire. As all DC wiring for trailers are 5or 7 core wires 5 for trailers and 7 for caravans..
Let me know how you get on Ron

Oct 11, 2009 | 1987 Toyota Pickup

1 Answer

I need the wiring code for a 2008 grand caravan so I can install a trailer hitch. How can I get this info?


You can buy an adapter that will go in between your rear lights & main harness under van at connector, that will allow you to hook it up correctly. If it's a small trailer & no brakes on it, you may get a way with a flat 4 connection, provided your signals & brakes light use same bulb, otherwise you will need a small inline converter wired in also. Get back if you need more clarification. If only flat 4 and no brakes req'd, you can splice in to wires inside rear hatch that go to tailights. You decide & let me know if you need help. P.S. All you need is a test light (12v) and some connectors.

Jun 05, 2009 | 2008 Dodge Grand Caravan

1 Answer

Brake light on trailer not actuated


Check the wires on the trailer. if those are good then you might need a better ground.

May 20, 2009 | 2000 Toyota ECHO

1 Answer

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.

Oct 27, 2008 | 1997 Mitsubishi Montero Sport

1 Answer

2001 Sportage Trailer wire connections


brown to the tail lights. yellow to left turn signal. green to right turn signal. this is a basic 3 wire hook-up i use all the time w/4wire connectors for all trailers. white wire is not used. ground is established when you hook to the ball.
to find the correct wire to splice to, use a testor (has a clip to the bare wire, and a sharp point to the truck frame). using a needle, push it through a wire to rear light harness. turn on the turn signal. check if the connection is the blinker, testing until you have the blinker wire. the tail lights can be attached to the license plate wire. brakes and blinkers use same wire, so brake lights will work whenever the turn signal is attached.
to be sure everything is working right, have a second person go inside the truck and work the signals, brakes and lights one at a time while you are at the back of the trailer telling what to do.

Oct 24, 2008 | 2001 Kia Sportage

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