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7 pin wiring diagram trailer - Cars & Trucks

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  • Cars & Trucks Master
  • 3,961 Answers

Depends on where you are, it varies from one country to another. The auto store where you bought the hardware should know.

Here is a link for the USA

http://www.etrailer.com/faq-wiring.aspx

Posted on Dec 30, 2013

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: Trailer wiring 7 way

dO NOT SPLICE WIRES.. You bought a 45000 dollar truck, spring for a wiring T --25 bucks.. ( plugs between main harness and Tail lights.. ) --Available at most good auto parts.. Painless wiring also has a kit.

If you did already cut or splice into your wires, take that **** loose.. Shrink wrap the dammage.. Silicone over srink wrap.. Wire will corrode.. if you did manage to get spliced wires to work,-- in a few years or sooner you will have issues with the connections..Can you say short circuit.. Moisture and loose connections are a thing of the past with sealed tap in wiring.. Plug and play..

If any of this is over your head, get a friend who knows, or a tech to help.. Don't jerry rig a 45,000 dollar new Truck.. Come ON..!!!!!

Posted on Sep 18, 2008

leetamara
  • 702 Answers

SOURCE: Installing a 7-pin trailer towing recptical on a 1991 Ford F150.

I believe you can look up the manufacturer of the trailer plug kit and find the wiring diagram there. On alot of the trailer plug kits, they have pics and diagrams in the package. The 7 pin plug (truck side) is available with the pig tail set up that plugs directly into the wiring harness for the lights. Then all you would have to worry about is the 2 wires for the electric brakes.

Posted on Nov 30, 2008

farroutideas
  • 78 Answers

SOURCE: wiring diagram or fuse box diagram-2007 GMC Envoy Denali

Hi there;

Here is the wiring diagram for the trailer wiring for your truck.
22593cd.jpg
Hope this helps
Farrout!

Posted on Mar 18, 2009

co7196
  • 3433 Answers

SOURCE: looking for color code (diagram) - 7 wire trailer harness/wiring

If you haven't purchased the plugs yet. The wire color codes should be included in the package.

  • If you are using used plugs ck the back of the plugs for color or function of wire
  • Wht - ground
  • red - stop
  • blue - accessory/aux
  • brown - tail
  • black - Marker
  • grn - left turn
  • yellow - right turn

Posted on May 06, 2009

  • 580 Answers

SOURCE: 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

Posted on Jul 10, 2009

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I believe you can look up the manufacturer of the trailer plug kit and find the wiring diagram there. On alot of the trailer plug kits, they have pics and diagrams in the package. The 7 pin plug (truck side) is available with the pig tail set up that plugs directly into the wiring harness for the lights. Then all you would have to worry about is the 2 wires for the electric brakes.

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