Sometimes doors not unlocking 😡
Thread Starter
Instructor
Joined: Feb 2007
Posts: 249
Likes: 39
From: WEST HAVERSTRAW NEW YORK
Sometimes doors not unlocking 😡
Checked threads here and looks like my latch is bad . The window goes down a little and door won’t open.
But here is the thing I can’t really be sure it’s the latch because.
1 It only happens now and then
2 it happens TO BOTH DOORS
i find it hard to believe both door latches went bad at the same time.
any help is appreciated Floyd
But here is the thing I can’t really be sure it’s the latch because.
1 It only happens now and then
2 it happens TO BOTH DOORS
i find it hard to believe both door latches went bad at the same time.
any help is appreciated Floyd
Burning Brakes
Joined: Aug 2008
Posts: 855
Likes: 35
From: Katy/Houston Texas
I would try cleaning the contact pads before I went to ordering parts. My car used to do the same thing. Don't remember exactly how they came apart, but I think it is just 2 screws into the door and the whole pad comes off. Might be another screw to open it up and get to the contacts. I cleaned the copper contacts with a little piece of 2000 grit and applied a small amount of dielectric grease to keep the contacts from tarnishing again. Search for a thread on door contacts which I'm sure has better information than I can pull out of my rusty brain, but I would try that first.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Disconnect the battery for about 10 mins, then reconnect it again.
Just ran into a ***** show this 4th with pulling my C6 off the tender that is had been on for a couple of weeks, to find that is had all kinds of problems induced by the battery tender glitching the system somehow. The fob would not open the rear hatch, the passenger door would only index the window, but would not open the door, and the list went on.
10 mins later after the battery disconnect and reconnect to reset all the modules/systems, all was right again with the car/ world again.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Would check the BCM connector to at least clean and reconnect them with the battery disconnected to start with, since this is a problem with both doors.
Also, when you have the BCM connector off, check the amount of slack in the right blue and red connector. GM short changed the amount of slack in some of these car wiring harnessses, and pasanger pressure to the carp can be enough to cause the connector to loose connection if the wire harness does not have enough slack to the BCM from under the carpet.
Also, have you went through the charging system for voltage checks/checked the DIC voltage with the motor running to make sure that is showing at least 14.3 volts?
I ask this, since still think that its a bad connector problem in the car somewhere that is cause a voltage drop, and its causing the systems to glitch.
Also, when you have the BCM connector off, check the amount of slack in the right blue and red connector. GM short changed the amount of slack in some of these car wiring harnessses, and pasanger pressure to the carp can be enough to cause the connector to loose connection if the wire harness does not have enough slack to the BCM from under the carpet.
Also, have you went through the charging system for voltage checks/checked the DIC voltage with the motor running to make sure that is showing at least 14.3 volts?
I ask this, since still think that its a bad connector problem in the car somewhere that is cause a voltage drop, and its causing the systems to glitch.
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Thread Starter
Instructor
Joined: Feb 2007
Posts: 249
Likes: 39
From: WEST HAVERSTRAW NEW YORK
Checked connections on BCM. I have slack in connectors .Same problem also now passenger window staying down 1/4 inch sometimes. Tried indexing window but sometimes window still stays down slightly. Doors won’t open from inside also.
maybe BCM is bad I just don’t know.Dano523 thanks
maybe BCM is bad I just don’t know.Dano523 thanks