Door locks won't unlock with button - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-27-2005, 09:09 AM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2005
Location: Michigan
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
rdrichar is on a distinguished road
Default Door locks won't unlock with button

94 ssei, Tried to search but couldn't find anything. Doors will all lock with either button on driver or passenger door but won't unlock with either button. They didn't work at all and I replaced the door lock fuse and they started locking. Is there a separate fuse for unlock? Which relay is for the locks?

Thanks
rdrichar is offline   Reply With Quote
Old 10-27-2005, 09:38 PM   #2
Senior Member
Certified GM nut
 
Join Date: Jun 2004
Posts: 1,933
Thanks: 0
Thanked 0 Times in 0 Posts
95seand78z28 is on a distinguished road
Default

No other fuses for unlocking the doors.... Could be a bad lock switch or maybe two bad switches. I think if the master switch is shot the passenger side doesn't work right.

Just a thought.
95seand78z28 is offline   Reply With Quote
Old 10-27-2005, 10:09 PM   #3
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Quote:
Originally Posted by 95seand78z28
No other fuses for unlocking the doors.... Could be a bad lock switch or maybe two bad switches. I think if the master switch is shot the passenger side doesn't work right.

Just a thought.
Right on the money.
willwren is offline   Reply With Quote
Old 10-28-2005, 08:00 AM   #4
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2005
Location: Michigan
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
rdrichar is on a distinguished road
Default

I checked the switches and they are good. I can turn the switch upside down and plug it in and same thing doors lock but don't unlock only it'* using the other side of the switch. Both switches will lock the doors but neither will unlock them.
rdrichar is offline   Reply With Quote
Old 10-28-2005, 08:13 AM   #5
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,854
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

well, others have mentioned master switch, but you said that you flipped the harness around on the switch, and still got it to lock only, which proves the unlock works?

perhaps wiring is bad?
rjolly87 is offline   Reply With Quote
Old 10-28-2005, 09:37 AM   #6
Senior Member
Certified GM nut
 
Join Date: Jun 2004
Posts: 1,933
Thanks: 0
Thanked 0 Times in 0 Posts
95seand78z28 is on a distinguished road
Default

Good idea flipping the door switch, unfortunately, you can't flip the master switch...

Are all the doors affected? If you have keyless entry, does that work?
95seand78z28 is offline   Reply With Quote
Old 10-28-2005, 04:20 PM   #7
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2005
Location: Michigan
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
rdrichar is on a distinguished road
Default

Yes, I did flip the master switch also and the same thing happened, still locks but doesn't unlock. Both switches installed correct, push lock all 4 doors lock, push unlock and nothing. Both switches flipped, push lock (which is unlock to the wiring) nothing, push unlock (which is lock to the wiring) and all 4 doors lock, which tells me both sides of both switches are working. No I don't have the fob for keyless, I need to buy one.
rdrichar is offline   Reply With Quote
Old 10-28-2005, 04:29 PM   #8
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Hook up with a MI member that has keyless, and program their fob to your car. You can 'de-program' it later if you like after troubleshooting. I suspect the wire from the master to the secondary switch at this point, although i'm at a loss to how you flipped the master switch. Did you use jumpers?
willwren is offline   Reply With Quote
Old 10-28-2005, 05:07 PM   #9
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Oct 2005
Location: Michigan
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
rdrichar is on a distinguished road
Default

I took the switch panel out with the lock switch and the 4 window switches turned it over pryed back the locking tabs on the lock switch and pulled it out of the switch panel then pryed back the locking tabs on the lock switch mounting base and removed the rocker switch itself from the base, then pryed back the locking tab on the wire connector to unplug the connector from the base, then I can plug the switch (3pins) directly into the connector harness without going through the black switch base, and I can flip it and check the other side of the switch. Hope this clarifies how I did it. You guys keep up the good work, this is an excellent site. Thanks for all the help you've given me just by reading up on other topics.
rdrichar is offline   Reply With Quote
Old 10-28-2005, 06:04 PM   #10
Junior Member
 
Join Date: Oct 2005
Location: Akron, OH
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
dmaugus is on a distinguished road
Default

I had the same problem. On my 95 there is a lock/unlock relay located under drivers seat UNDER the carpet. Assume 94 is the same. Move the seat all the way back and feel for a lump along the raised rail that the seat tracks bolt to. You can feel the relay working as you activate the lock switch. Easiest way to access it is to cut the carpet. It'* easy to take apart and clean the relay contacts. Hope this helps.
dmaugus is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
GMC Denali Rear door locks won't unlock DJLyder GMC/Chevrolet Truck/SUV 4 11-28-2012 03:31 PM
keyless entry won't unlock trasealee Everything Electrical & Electronic 6 02-20-2008 10:33 AM
Keyless won't unlock passenger door CSFiend 1992-1999 6 09-28-2004 09:32 PM
Door locks will not unlock by switch, lumbar seat options .. jamesdean26hfx Everything Electrical & Electronic 4 09-27-2004 08:40 PM
Door locks unlock by them selves Baileyjack Everything Electrical & Electronic 6 07-22-2004 01:03 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:47 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.