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Door Locks 92 caddy deville

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=56454
Printed Date: May 08, 2025 at 12:02 AM


Topic: Door Locks 92 caddy deville

Posted By: Bknight187
Subject: Door Locks 92 caddy deville
Date Posted: May 25, 2005 at 11:27 PM

Ran into a fun problem the other day.  Put in a Viper 160xvr into a 1992 caddy DeVille.  All tech info said that the door lock/ unlock wires were Light blue/Black and were located low in either kick.  There were positive so i used the DEI 451M.  Light blue tested fine and locked the door.  Ever black in both kicks tested to rest at ground and never went to 12v's.  Now for the fun part.  The only wire that went to 12v's in either kick was a tan 16 guage(unlock motor wire).  So i cut it thinking i could wire it like a 5 wire system.  The problem is that both sides rest at ground.  So i had to reconect it.  next i went into the door,  right at the switch.  You guessed it, black and light blue.  Both went to 12v's on lock and unlock, but rested at ground.  So if you send 12v's to a wire resting at ground, guess what blown fuse.  Has anyone ran into this problem before?  what can i do?  I called directechs (have an account) and they didn't have any advice.  PLEASE HELP!!

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Bknight187
First Class MECP Installer



Replies:

Posted By: kgerry
Date Posted: May 26, 2005 at 10:28 AM
pop the switch out and verify wire colors and function at the switch.... i just did a 92 Deville this week and the black  wire was dead... when i metered it at the switch it was still dead (intermittent switch) so i sprayed a little Super PPE (Anti-oxident spray) into the switch, worked it as bit and then retested and all was good, then when i went back and tested i found the right black wire..... BTW, a lot of these MY caddied the wires come in from the boot and run up, not down into the KP... you may have to grab them at the boot, not the KP..... 

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979




Posted By: Bknight187
Date Posted: May 26, 2005 at 2:29 PM
I poped the switch and both wires test 12v"s on lock and unlock(black and light blue) the problem is that they rest at ground and i can't send 12v's to a ground wire.  I checked at both switch's. 

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Bknight187
First Class MECP Installer




Posted By: kgerry
Date Posted: May 26, 2005 at 2:53 PM
none of the caddys that were + i've done rested at ground.... and i just did an 86 Deville this morning that was + for locks and i wired it up directly to the Clifford i put in, without even using the 451M......

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979




Posted By: OhioMike1101
Date Posted: May 26, 2005 at 6:39 PM
Usually those wires are found low in the kick.  If I remember correctly, there were about 6 black wires all of the same gauge.  It ended up being one of them.




Posted By: infbaffle
Date Posted: May 26, 2005 at 9:55 PM

I don't know why , but in my 17 years of experience there has been close to ten different instances where doorlocks were supposed to be positive pulse and ended up being 5-wire reversal at rest. Cadillac, Ford LTD, Chevy trucks, and I'm talking about  late models. 2005 police issue Crown Vics are all 5-wire. My suggestion is if you spend more than 10 min. looking for these wire that are sometimes not there, check the switch or go to the boot.



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infbaffle





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