Driver's side window stuck in the down position

Keep this to general Beretta/Board/Community topics.
Exciter570
Posts: 4
Joined: Sat Jun 17, 2017 12:20 pm

Driver's side window stuck in the down position

Postby Exciter570 » Thu Oct 05, 2017 5:30 pm

Hi all,

Recently my driver's side window started giving me problems. It would work, then it wouldn't, then it would again..however, it is now stuck in the down position. When I push the switch to the up position, I hear a faint click but nothing happens.

I've taken off the door panel and have tried to push the window up by hand to no avail. Any advice on how to at least get the window up and stay up? More likely that the motor is bad or something else?

Thank you,
Chris


Chris S.
'92 GTZ

GT_Indy
Registered User
Posts: 207
Joined: Thu Apr 21, 2016 2:23 pm
Been thanked: 2 times

Re: Driver's side window stuck in the down position

Postby GT_Indy » Fri Oct 06, 2017 1:19 pm

I would start by checking for voltages at the motor plug when the switch is moved up/down.



Exciter570
Posts: 4
Joined: Sat Jun 17, 2017 12:20 pm

Re: Driver's side window stuck in the down position

Postby Exciter570 » Sun Oct 08, 2017 9:44 am

Thanks and if there's no voltage at the plug, what needs to be replaced? The relay? If there is voltage, how in the world do you replace the motor? I have the interior door panel off and the unit is riveted to the inner door panel..


Chris S.
'92 GTZ

GT_Indy
Registered User
Posts: 207
Joined: Thu Apr 21, 2016 2:23 pm
Been thanked: 2 times

Re: Driver's side window stuck in the down position

Postby GT_Indy » Mon Oct 09, 2017 3:23 pm

Exciter570 wrote:Thanks and if there's no voltage at the plug, what needs to be replaced? The relay? If there is voltage, how in the world do you replace the motor? I have the interior door panel off and the unit is riveted to the inner door panel..


Replacing the motor: My best guess is to carefully cut the rivits and buy the right sized screws/bolts and locking nuts at a hardware store. I know the motor can be disassembled without removal as we have done that in the past and repaired a seized motor.

Fixing the voltage: If no voltage at the plug going to the motor from the switch then I would check for voltage on the plug going to the switch from the battery.
If that supply is dead as well then check the breaker, I believe power windows get an auto resetting breaker (Rear window defogger gets its own too, I've had them go bad before).
Also verify grounds and check the switch itself to see if it works or not when moved with the diode check function, it usually has a little speaker next to it as it makes a beep indicating it has a connection. Check for beep on leads before checking switch to see if the meter beeps first as some do not have the beeper function and display numbers only.

Worst case you can try applying 12 volts and ground directly to the motor to see if it moves at all, but be careful you do not break the window.
I would also verify the window isn't stuck or binding on the tracks.

I hope this helps.



User avatar
ifixalot
Registered User
Posts: 531
Joined: Tue Dec 26, 2006 10:56 am
Location: Deerfield Illinois
Been thanked: 12 times

Re: Driver's side window stuck in the down position

Postby ifixalot » Tue Oct 10, 2017 10:19 am

In some of my GM cars, the regulator motor has a internal circuit breaker which becomes sensitive. The window goes down but won't go up or goes up in short bursts. This is that circuit breaker device tripping. To get the window back up, you can try having someone pull up on the window while another person pushes the switch to the up position. By lifting the window, the motor pulls less current and the circuit breaker won't trip. The fix for this is to bypass the internal circuit breaker. It's a bit involved to explain but there were kits out there. You may be able to find more info on this at a G-body forum. I've come across this problem in my 94 Lumina van passenger side, 93 Lumina van drivers side and an early 90s Buick of my neighbors. I haven't had this problem with any Beretta's yet but that doesn't mean it can't happen. I assume GM uses the same regulators in all of it's cars.




Return to “General Discussion”

Who is online

Users browsing this forum: Bing [Bot] and 3 guests