Kerrdog

Well. Thanks for the replies. I will seek help elsewhere.

Bump

Hi All, New member here. I will apologize first for bringing this topic! I've read so many posts about it, but I have not been able to solve it. EVERYTHING that everybody does to remedy this problem has not worked for me, and I have spent countless hours working on it. I AM HOPING YOU CAN HELP! I'm working on my 2014 Silverado LT. I've had it only a short time. It was a farm truck before I got it. Bought it from a GM dealer that was going to take it to auction. I have fixed so much stuff! I joined another forum and got some input initially, but it is pretty dead! So I'm trying this one. I feel a little crappy joining yet another forum for this issue, please forgive me. My current problem is the front passenger window does not operate with any switch. The window WAS up but now it is down. I replaced the regulator with an aftermarket brand from a known vendor (not Amazon). The new regulator did not fix the problem. So I replaced it with another, and still not fixed. I then replaced the passenger switch and still nothing. It was suggested I check the boot in the door, which I did, and found three broken or modified wires on the driver's side. I spliced the broken wires, soldered and heat shrink. But one wire was modified, or hacked. I believe it is the data line (green wire) and it goes to the BCM. The PO had spliced a new wire into the door harness bypassing the main plug in the A pillar, connecting into the BCM Pink plug. My testing, if I did it correctly, shows a dead pin at the A pillar plug, and hence the bypassed wire. I ohmed the spliced wire and it is good. So I believe the signal is there. ALL FUNCTIONS WORK ON ALL SWITCHES, except the passenger window from either switch. I have since replaced the driver's side switch as well, using OEM switches. I get battery power to the switch, but no power THROUGH the switch. I want to get this fixed once and for all, but at the very least get the window back up so I can drive my truck! It's raining every day here, and the truck is parked under cover. I have also tried applying battery power directly to one pin on the motor and battery ground to the other just to get the window up, but that doesn't work... the regulator does nothing. I'm wondering if the data line is the reason the window is not working?? Why wouldn't the regulator work with direct power? My battery is brand new and has 12.5 V. ANY help is greatly appreciated. My apologies for such a long post. I'm not a mechanic but have better than average aptitude. This is not my first truck build, just the most troublesome one! Thanks, Scott