escalade driver’s door lock dead?
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=112627
Printed Date: May 05, 2024 at 7:20 AM
Topic: escalade driver’s door lock dead?
Posted By: pcguy760
Subject: escalade driver’s door lock dead?
Date Posted: March 24, 2009 at 3:10 PM
While installing my alarm right now, the driver's door just will not lock or unlock even with the factory remote! Does anyone know why or what I must have done incorrect? I have disconnected the aftermarket alarm and it still will not work although all the other doors lock and unlock! Anyone have any ideas?!
Replies:
Posted By: loneranger
Date Posted: March 24, 2009 at 3:35 PM
If it worked before, you may have blown a fuse.
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Ideal - cmon dude, add to topics in a useful manner, not stuff that is obvious.
Story - Phzzzt! Hey, what happened?! ... Isn't it obvious?
Moral - Never dismiss the obvious.
Posted By: pcguy760
Date Posted: March 24, 2009 at 3:41 PM
This is wierd cos I checked all the fuses for the door locks and they are all okay. Did I have to require a special module for the door locks? According to the diagrams here it was just straight forward + for both lock and unlock...
Posted By: loneranger
Date Posted: March 24, 2009 at 3:45 PM
pcguy760 wrote:
.. I checked all the fuses for the door locks and they are all okay.
There is only 1 fuse for the door lock/unlock circuit. It might also help if you include the year of the vehicle, as well as the Make/Model R/S-alarm unit. ------------- Ideal - cmon dude, add to topics in a useful manner, not stuff that is obvious.
Story - Phzzzt! Hey, what happened?! ... Isn't it obvious?
Moral - Never dismiss the obvious.
Posted By: pcguy760
Date Posted: March 24, 2009 at 4:00 PM
Oh the vehicle is a 2002 Cadillac Escalade and the Alarm is a Audiovox Prestige APS787A... still tryin to figure out why JUST the driver's door died :( ...
Posted By: pcguy760
Date Posted: March 24, 2009 at 7:41 PM
Update on this : Well I did notice that the driver's door lock relay clicks when I press the remote (on the factory alarm) once which only suppose to open the driver's door BUT the door lock does not do anything! Now I am not sure which relay controls the driver's door lock but I guess I can figure it out... BTW, I checked all the fuses in the dash and none are blown - are there any other fuses that could cause this? Any ideas from people firmiliar with this vehicle?
Posted By: ckeeler
Date Posted: March 25, 2009 at 9:57 AM
remove the door panel and test for voltage directly at the door lock motor when you press the button on the door or remote. if you get power there you have a bad door lock motor. if no power there you have an open wire somewhere between the motor and relay, could you have possibly unplugged something? that is what i would do to start narrowing down what the problem is.
Posted By: pcguy760
Date Posted: March 26, 2009 at 12:14 AM
ckeeler thanks for the advice but it was kinda late by the time I got back on this forum to see if anyone responded. Well, come to find out one of the driver's door lock wires (the tan wire) broke INSIDE the tan insulation probably (and I am gonna be honest), when I yanked on it. Honestly I did not think that it would have broke the strands of wire inside it - I mean come on, this vehicle is less than 10 yrs old not like 50 yrs old!! Well anyway, I ran a new wire piece of wire and it works just like it use to now  BTW, I installed the alarm and remote start bypass module (DEI Module 556LW I think) - everything works great except I would like to wire interior lights so that when the alarm goes off the lights inside come on, etc. and a few other nice finishing touches. Well, I know where to come look if I get stuck and I hope maybe this hiccup will help someone else one day!
Posted By: ckeeler
Date Posted: March 26, 2009 at 9:10 AM
awesome. i figured it would be a broken wire being that you stated all the other doors worked except for that one.
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