Trailer Wiring Systems 

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Please fill out the form below to request information about wiring systems for your vehicle. Be sure to include contact information, either an e-mail address (which you might want to double check to be sure you typed it correctly) or a telephone number so that we can respond to your inquiry.

I am interested in trailer wiring for a:

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Model: (Topaz, Voyager, etc.) 

If you know what type of wiring system you plan to be hooking into in your trailer, fill that information in below:

Trailer Wiring: 

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Tow Doctor


THE TOW DOCTOR IS DESIGNED
SO THAT ONE PERSON CAN MAKE
SURE THAT A VEHICLE WIRE
HARNESS HAS BEEN INSTALLED
CORRECTLY AND THAT ALL
FUNCTIONS ARE WORKING
Complete Vehicle Wire Harness Test Unit
It tests all tow vehicle functions including ground, auxiliary powerlead, brake controller, directional and backup lights.
It adapts to 4-Way Flat, 6-Way Round, 7 Way RV Blade, 7-Way Pin (Round)
Heavy duty adapter for tow doctor. 7 way round to 7 way flat (can be purchased separately)
Heavy duty, 20" extension cord is included. Puts you in the driver's seat with testing.
Comes with attractive durable storage case to protect unit
Saves time and the cost of a second person at the rear of the vehicle $202.49

Trailer Doctor


Test Functions:
Left turn signal
Right turn signal
Brake lights
Running lights
Electric Brakes
Complete Trailer Wiring Test Unit
The trailer doctor is designed to completely test trailer lights, turn signals, and electric brakes. The unit is totally self-contained with an internal battery, battery charger, and features all of the popular trailer plugs. Simply plug the trailer into the box and push the appropriate lighted button for each function. No more using your truck to test the trailer, no more using a battery with a jumper lead! This simplifies isolating the truck problem from the trailer problem. $311.49