I bought a 1997 f150 ext cab with 8 ft bed . It has wires for trailer hook up but the plug has been cut off. It looks like it is factory wired in . Any help would be great.

 

If you have or have access to a test lite or multimeter all you need to do is check each of the cut off wires. Once with the parking lights on once with the left sig on , once with the right signal on and once to determine which one is the ground wire.
It;s quick and easy just make a note of which color wire is for which function and reconnect the replacement plug/wires with shrink butt connectors and you're done.

 

Left Turn Yellow
Right Turn Dark Green
Trailer Battery Orange
Running Lamps Brown/White
Back up lamp Black/Light Green
Brake control Dark Blue
Ground White

 

thanks i will try that .do you know if there was a trailer brake with that setup or or would it be wired to original brakes?

 

The blue wire should be the trailer brakes. If it is full electric brakes, you will also need a brake control box. Surge brakes should work without a box.

 

i can not see were a brake control box was prev installed . not sure how they did it.

 

can anyone tell me how many fuses and were they are located for the turn signals for the trialer wiring. any help please.

 

Try this.

 

thank you i will try this.