andrewlam911

I have a 05 ford f 150 lariat. all four of my power windows are not working. the lights at the master switch are illuminated but the other three switches for each door do not illuminate. I could not find 12v at the harness plug in to the master window switch. i also checked and tested the 30 amp circuit breaker and also the accessory delay relay in the fuse panel. the window lockout switch has power to it also. i pulled back half of the rubber boot that is in the door jam to see if i could see any wires broken but i didn't see any. i wasn't sure if i could pull of the other end or not. please if some one could help me that has some experience with this same issue.

redfishtd

The drivers door master module fails all the time ,It gets the most use. It is exposed to rain and dirt the most. They are cheap on ebay
Driver door wires break inside of insulation from being operated /flexed the most .
Use a pin/piercing type lamp to test for volts while trying to operate windows. String a negative battery wire straight from battery so you don't have to hunt for a good ground . A lamp loads the circuit and is easier to see than a meter .
You may have to rig your own sharp needles for this .
From what you say you are losing a circuit or two in the drivers door flex . Its fairly common to have to cut the old one out and splice new wire in . make your self a fused jumper to prove it ,temp jump across bad part .
Since you can't operate any window I would say you are losing the window lock circuit or the common power .

redfishtd

https://www.amazon.com/window-button...window+control

andrewlam911

Thank you for your response. The contacts on the switch are not working ℅100 but I found a broken ground wire in the door jam. Fixed that.

bourgeois1269

Look at all the wires in the door jamb to be sure, I had 4 separate on me so I grabbed a few but connector and fixed them.