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Changed fuses fow tow connector. #3 and # 7. Now the left trailer light,signal, brake,etc works while only right tail light on trailer still works. On right side, the tail works, but not the brake,or signal. It's like changing the fuses repaired only one side. Could it be the pig tail on the trailer? 03 Ford sport Trac.

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  • Cars & Trucks Expert
  • 219 Answers

I would recommend taking out the tail light. Get a test light, have an assantant step on brake. U will see the bulb in tailamp light up. Probe the wire w/your test lamp. That is brake wire. Repeat that process for blinker.. Drop down those two wires. Hook that to the same side on trailor. Repeat for left and you should be all set.

Posted on Dec 13, 2014

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Posted on Jan 02, 2017

pops296
  • 174 Answers

SOURCE: 2004 ford f150 no tail ights ,no left turn signal

Check with http://www.etrailer.com/faq-wiring.aspx. They may have the fuse location. I know some are behind the passengers kick panel. Hope this helps. Mike

Posted on Feb 03, 2010

  • 88 Answers

SOURCE: rear brake lights don't work

you prob got a trailer plug prob bad wires if not tail lights run through turn signal switch tell fix ya bout me ok

Posted on May 23, 2009

  • 11 Answers

SOURCE: tail light works but no brake light on2003 Dodge Ram 1500

if it has a trailer package look at the splitter when you take off the tail light cover might be that plug.

Posted on Dec 23, 2008

  • 1 Answer

SOURCE: 2001 ford explorer sport trac

Just found the answer on another site. Sure enough went out removed the 3 philips head screws in the steering column opened it up and walla a wire connection had pulled itself free. When my son uses my truck he always uses the tilt steering, when I get in I have to readjust it. because of this the wire connection pulled itself out. I simply pushed it back in an blinker and brake light are now working. My husband is now trying to figure a way to secure the wire connection so it doesn't pull itself out again. Hope this helps others, either by saving the cost of a dealership or machanic or from getting rear ended.

Posted on Mar 21, 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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2 Answers

Trailer light hook-up


If this DeVille is trailer-ready, there is a trailer harness fuse box with 10A fuses for tail lights (PPL wire), left turn/stop/tail lights (YEL wire), and right turn/stop/tail lights (DK GRN wire

Oct 16, 2012 | 2001 Cadillac DeVille

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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

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

4 Answers

F150 Ford 1998 is there a fuse for a trailer and where is it located? Thank you


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

Nov 11, 2009 | 1998 Ford F150 Regular Cab

1 Answer

Need wiring diagram for 2001 dodge dakota... trying to hook up connector for towing


moz-screenshot-1.jpg 08-33-93f1.gif CAV CIRCUIT FUNCTION 1 Z13 12BK GROUND 2 B40 12LB TRAILER ELECTRIC BRAKE OUTPUT 3 L76 12BK/OR TAIL LIGHT (Trailer Tow Relay in PDC) 4 A6 12RD/TN* FUSED B(+) (40A, Always Hot, F8 in PDC) 5 L63 16DG/RD LEFT REAR TURN SIGNAL TRAILER TOW 6 L62 16BR/PK RIGHT REAR TURN SIGNAL CONNECTOR 7 L1 16VT/BK BACK-UP LAMP FIGURE 1: 7-Terminal Trailer Tow Connector

Jul 10, 2009 | 2001 Dodge Dakota

1 Answer

No power to tail light on trailer- 2004 Dodge durango factory tow


If this is a factory light harness for the trailer hookup on your Caravan. Look under the hood for a fuse box. Many 2000+ vehicles have this with separate fuses just for the trailer lights.

Jun 10, 2009 | 2005 Dodge Caravan

1 Answer

Rear brake lights don't work


you prob got a trailer plug prob bad wires if not tail lights run through turn signal switch tell fix ya bout me ok

May 23, 2009 | 2005 Chevrolet Silverado 2500HD 2WD

1 Answer

Left tail light out on 02 S10


I had this same symptom after I pulled a trailer that had light "issues". I tried wiggling the trailer light connector around until the trailer lights begin working. Next think I know they were not working again and now my left tail light was out. I thought it odd that is wasn't both lights out being on the same fuse, but checked wiring etc with no problems found. Mine turned out to be the "left tail light fuse" in the engine compartment fuse box. All of the parking and tail lights as independently fuse, You can tell which one it is by the guide on the fuse box lid. You will be looking for a 10 amp (red) fuse near the center of the fuse box.

rgant

Apr 02, 2009 | 2002 Chevrolet S-10

1 Answer

I need a wiring diagram for a 7 pin trailer board plug


Here's one
08-33-93f1.gif CAV CIRCUIT FUNCTION 1 Z13 12BK GROUND 2 B40 12LB TRAILER ELECTRIC BRAKE OUTPUT 3 L76 12BK/OR TAIL LIGHT (Trailer Tow Relay in PDC) 4 A6 12RD/TN* FUSED B(+) (40A, Always Hot, F8 in PDC) 5 L63 16DG/RD LEFT REAR TURN SIGNAL TRAILER TOW 6 L62 16BR/PK RIGHT REAR TURN SIGNAL CONNECTOR 7 L1 16VT/BK BACK-UP LAMP FIGURE 1: 7-Terminal Trailer Tow Connector

Mar 12, 2009 | 1993 Land Rover Defender

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