2000 Sunfire GT Door lock problem!
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=25447
Printed Date: May 04, 2024 at 8:44 AM
Topic: 2000 Sunfire GT Door lock problem!
Posted By: fierodough
Subject: 2000 Sunfire GT Door lock problem!
Date Posted: January 28, 2004 at 6:37 PM
Car: 00 Sunfire GT with power averything. Problem: Driver's side door lock not unlocking under power. (works with key) no ovious mechanical resistance. Trunk stoped working at the same time! What is weird? Many 00 Sunfires and Cavaliers have this problem! Does anyone have the wiring diagrams for the locks, keyless and trunk? Do they share a common relay? If this help: the lock system on the FOB unlocks the driver's side first (normally) then press unlock again and does the passenger door. To lock, both are done at the same time. Trunk is independant. How is driver unlock and trunk related? Thanks! Eric
Replies:
Posted By: draasch
Date Posted: January 28, 2004 at 11:26 PM
what i would do is check all of the fuses. you might have one under the dash and under the hood....
does the drivers door unlock from the switch?? or just the pass. door??
if only the pass. door unlocks, then i would test the motor inside the door.
if it works off of the switch then it could be in the K/E unit itself.
if there is a relay for those features, then it will be marked in one of the boxes ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: sroth140
Date Posted: January 29, 2004 at 12:15 AM
the wiring is pretty simple. 5wi lock/unlock and trunk uses a positive trigger. i agree with checking the key fob. if everything works fine with the interor controls, id look into a new keyless entry system. might as well get a remote starter.
Posted By: fierodough
Date Posted: January 29, 2004 at 6:01 AM
The keyless FOB is locking all doors but will not unlock driver. nor open the trunk. the buttons inside the car wil lock and unlock the pass. door, but only lock the driver. What I'm getting at, is the driver unlock and trunk release failed at the exact time. So the 2 are dependant of eachother. That makes me think " common relay" I have read about this happening to many Cavaliers and Sunfires of the same year. But no one posted the fix or problem. Does anyone have the diagrams to show what relays / fuses are used?
Posted By: HamiltonAudio
Date Posted: January 29, 2004 at 7:47 AM
its actually a keyless entry module in the car....perhaps have it replaced? b
Posted By: draasch
Date Posted: January 29, 2004 at 8:52 AM
OEM Keyless Module Located On Drivers Side Of Trunk ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: kiteman
Date Posted: January 29, 2004 at 8:53 AM
I would agree that mybe the keyless entry has failed and the dealer should check.
Posted By: draasch
Date Posted: January 29, 2004 at 8:56 AM
you can test the wire at the K/E unit in the trunk. see if the wires have power when you push the buttons on the key FOB. ------------- Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt
Posted By: logger
Date Posted: January 29, 2004 at 7:16 PM
sounds like the module's to blame, same thing happened to my GT.
Posted By: fierodough
Date Posted: January 30, 2004 at 6:10 AM
draasch wrote:
OEM Keyless Module Located On Drivers Side Of Trunk
it's a 2000... it's unfortunatly built into the BCM.. :(
Posted By: HamiltonAudio
Date Posted: January 30, 2004 at 1:57 PM
fierodough wrote:
draasch wrote:
OEM Keyless Module Located On Drivers Side Of Trunk
it's a 2000... it's unfortunatly built into the BCM.. :(
crappy....could you "borrow" a bcm from a wrecker (you do have a buddy that works at a wrecker don't you??? :) and try it really quick? if that works, then pay for the BCM...shouldn't be that much from a scrapyard...if not, then you know you're talking about broken wires or some other anomaly... you never did mention...do the doorlocks work consistently if you manually trigger the right doorlock wires with a r/s or alarm? or does this condition exist no matter what you use (factory fob, factory switches, installed r/s or alarm?) b
Posted By: kiteman
Date Posted: February 02, 2004 at 10:36 AM
Just for sh@*t's and grins, did you try to unplug the battery for 15 mins. and see if maybe something would reset?
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