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I need wiring instructions for rear socket to connect a taillight board for trailer.

I need colour coded wiring instructions to connect lightboard.

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6ya6ya
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Posted on Jan 02, 2017

motor1258
  • 6674 Answers

SOURCE: Wiring trailer connection to Mitsubishi Magna te 1996

In case you weren't aware, you can buy an adapter that plugs into your harness in the area in front of rear bumper, up under vehicle, that will do all of what your trying to accomplish, with a whole lot less work, and they are not that expensive, plus you don't have to touch wires in behind panels etc. Does that sound good to you, or do you still want other instructions? Also, does this trailer have brakes that need to be hooked up as well in this plug? Sorry for all the questions but, want to make sure we get it right the first time. If no brakes on trailer, all you need is right signal, left signal, & running light working, and we need to know if your brake lights are same bulb as your signal lights.

Posted on Sep 05, 2009

pops296
  • 174 Answers

SOURCE: trailer wiring colour codes

try http://www.etrailer.com/faq-wiring.aspx. They may have that info.

Posted on Jan 29, 2010

  • 834 Answers

SOURCE: wiring diagram for 7N trailer socket please help

I have always had success with trailer wiring using these diagrams.


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Posted on Jun 06, 2010

  • 8 Answers

SOURCE: wiring colour for connecting trailer lights

Your best bet is to go to an auto parts store or dealer and see if they have an adapter for trailer lights. Most of the newer vehicles have adapters the just plug into the existing wiring harness and you don't need to worry about splicing things. Also on some vehicles hooking up directly to the wiring harness doesn't work too well because of the circuit not being able to support the extra voltage drop. The adapter usually have that taken care of.

Posted on Jul 14, 2010

jturcotte
  • 7772 Answers

SOURCE: I have a 99 Silverado

tail wire is brown.
signal/brake is yellow on left and dark green on right
ground is black

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Posted on Oct 11, 2010

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1 Answer

I am having problems with the trailer lighting and brake lights on a trailer behind a 01 kenworth repalces relays and fuse on truck but no change on the trailer


Trailer lighting is notoriously unreliable, especially on commercially manufactured and wired trailers where the manufacturer tries to save money by using a chassis or body earth return instead of a fully wired system and the better quality lamps such a system would require.

In my experience eight out of ten trailer lighting problems are related to a ground or earthing fault or poor quality wire and poor quality terminals being used.
The other two out of ten related to problems with the plug and socket connection (car to trailer).

This is assuming the towing vehicle had the tow socket wired to a high standard in the first place and didn't use the notorious Scotchloc.
The Scotchloc device was adequate for some of the wiring to older vehicles that used thickly insulated thick wiring but they are totally unsuitable for wiring connections that are exposed to movement, dirt and moisture and the thin wiring of the modern vehicle. There are in addition to the blue coloured ones, also red and white more suited to thinner wiring and also a brown one for larger cables but blue seems to be the ones supplied most often and so these are the ones used most often and consequently are responsible for quite a lot of faults where a supply doesn't even reach the tow socket.

When searching for a fault it is best to check the towing vehicle electrics and the trailer separately. Plugging in a known good trailer or lighting board is the best way to check the car socket. I have made a box of tricks for checking both the car and trailer separately, including the grounds and supplies for fridge, battery charging, etc. It will also, with the aid of a lighting board, provide lighting to a towed vehicle that would otherwise have to be trailered.

Apr 19, 2016 | Cars & Trucks

1 Answer

How can i get my silverado cruise control to work?


check your taillights as of 03 there is a circuit board under the rear of these trucks that tell the ecm engine control module if the taillights are functional if one of the bulb sockets has a bad connection or if a bulb is partially burnt or if someone has tampered with the wiring like using the wrong plug on to tow a trailer ,the ecm will not allow the cruse control to function

Aug 30, 2014 | 2011 Chevrolet Silverado 1500

1 Answer

When i hook my trailer to my 2002 ford superduty i have no running lights on trailer.brake and signal lights work fine.WHY?


Hello, if you only have taillights on the trailer and no side markers, check your bulbs first. The bright side is used for the Brakes and turn signals and the normal filament is used for the running lights.

If you use a test light you can find the pin on the connector which runs the Running lights. Sometimes the wiring harness will pick up the running lights off of the taillight in the bed of the truck. You would look for a wire going up into the taillight housing from the Trailer plug.

If you are the original owner of the truck there was a small package of Relays and wire ends that came in a plastic bag. It could be stored with the jack. This package had wire color information and instructions for Electric brakes. It also color-coded the Trailer plug-in socket as they use the extra pin holes for the Electric brakes. All the wires are discussed.

If an aftermarket unit was wired in the running light, the wires could be any color. The industry tried to put in a standard, but instructions still say if you don't have one color, its another. That is still vague.

Jan 23, 2011 | 2002 Ford F250 Super Duty SuperCab

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

I need to know if there is an after market wiring harness for my 2001 toyota tundra and also what the OEM part number would be. I need the pigtail harness that connects to each of the rear taillights,...


You don't need the OEM part, Go to ebay and find one, or any parts store. I bought one for my truck, worked great. It has all the little electronic gizmos on it you need to blink with. Snaps right in the sockets, and no wire cutting. Check it out.

Sep 04, 2010 | 2001 Toyota Tundra

1 Answer

Wiring colour for connecting trailer lights


Your best bet is to go to an auto parts store or dealer and see if they have an adapter for trailer lights. Most of the newer vehicles have adapters the just plug into the existing wiring harness and you don't need to worry about splicing things. Also on some vehicles hooking up directly to the wiring harness doesn't work too well because of the circuit not being able to support the extra voltage drop. The adapter usually have that taken care of.

Jul 14, 2010 | 2005 Dodge Caravan

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

    2 Answers

    On a cherokee sport diesel what colour wire do i connect the white earth return to at the taillight, 2006 model this is from the trailer connection socket


    Is this wire a ground wire from the trailer or is this a wire for the trailer? If you are wiring a hook up for your trailer to plug into, that should be a ground wire and can be hooked up to any good solid metal part of the car. This can ground to the body, chassis or bumper. If you are looking for a wire to hook to, then look at your tail light socket and see which wire goes to the metal base of the bulb, that is the ground wire.

    Nov 29, 2009 | 1996 Jeep Cherokee Sport

    1 Answer

    Wiring trailer connection to Mitsubishi Magna te 1996


    In case you weren't aware, you can buy an adapter that plugs into your harness in the area in front of rear bumper, up under vehicle, that will do all of what your trying to accomplish, with a whole lot less work, and they are not that expensive, plus you don't have to touch wires in behind panels etc. Does that sound good to you, or do you still want other instructions? Also, does this trailer have brakes that need to be hooked up as well in this plug? Sorry for all the questions but, want to make sure we get it right the first time. If no brakes on trailer, all you need is right signal, left signal, & running light working, and we need to know if your brake lights are same bulb as your signal lights.

    Sep 04, 2009 | 1997 Mitsubishi Galant

    2 Answers

    Tow bar trailer socket wiring connection point to car wiring?


    The connectors for towing wire harnesses on foresters are generally on the passenger side, below the rear taillight inside the cargo space. some require pulling up the foam block that is between the spare tire compartment and the taillight. Check where you replace the tailights from inside the car, if there isn't a matching connector hanging out there, check around the spare tire compartment, see if you can remove the carpeted foam block next to the compartment and find the plug under there.

    Jun 03, 2009 | 2006 Subaru Forester

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