Welcome to the Zone. > . When you get time, make a post in the introduction section of the forum and tell us a little about you and your Bronco.
The best way to determine if it is the window motor or the electrical connections is to remove the access cover, find the wires running along the bottom of the gate, (red and yellow) and jumper to a 12V battery. It doesn't matter which you hook to the positive and negative. If nothing happens reverse the connection, that is the way your switch operates. Reversing the polarity of the connection reverses the direction of the motor. If that works then you need to figure what is wrong with the connections.
There are two fuses that power the gate. One supplies power from the driver switch (hot is Run and Accessory), and the other supplies voltage to the tail gate switch (hot at all times). A common problem with the tail gate power is the safety switch located in the left side latch. Some times it goes bad and at others it is because the striker stud needs a little adjustment. Also look at the mounting bolts of the manual handle inside the tail gate, If you can see evidence of the bolts having moved, loosen them and move the mechanism back to it's original position.
A diagram is attached. Since you didn't say what year truck you have, (add the truck vitals to your signature), I'm including two diagrams. The only difference is that two wires are reversed, (not sure why
), but Ford must have had a better idea :blink: .
Good luck,
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