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99 gmc serria locks, auto pager

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=120647
Printed Date: May 15, 2025 at 6:51 PM


Topic: 99 gmc serria locks, auto pager

Posted By: mike1109
Subject: 99 gmc serria locks, auto pager
Date Posted: March 11, 2010 at 12:07 AM

Hi i have been trying to figure out the locks on a 99 GMC Serria. Im hooking up a Auto Page C3-RS665-2W there are two wires for the locks but the diagram to where i am suppose to hook them up is confusing. Where do i hook the lock wires at, And do i need to have relays for the locks?



Replies:

Posted By: kreg357
Date Posted: March 11, 2010 at 6:07 AM

It all depends on which style truck you have, old or new, if old style which cab style, 2 door or 4 door, and if it came with factory remote keyless.  New style truck is Type A, old style truck can be either Type A or Type C.

Check out the Bulldog Web site at :   https://www.bulldogsecurity.com/bdnew/vehiclewiringdiagrams.asp    and look up your truck.  Then look for the wires at the locations they list.  Use a DMM to verify the wires.

I am not familiar with the AutoPage R/S's,  but Type A should be no problem to hook up.  Type C might require relays.  



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Soldering is fun!




Posted By: mike1109
Date Posted: March 13, 2010 at 5:44 AM
Hi ok I looked at the bulldog site which was very helpfully if I was to have to use relays how should I wire them and do I have to disable the factory keyless entry




Posted By: kreg357
Date Posted: March 13, 2010 at 6:31 AM

If you have Type C, check out the Door Lock Relay Wiring on this site for 5 Wire Alternating 12 Volts Positive Door Locks at https://www.the12volt.com/doorlocks/page3.asp#5w.  Scroll down to the correct diagram. 

This Bulldog install manual has a nice diagram of the relay install on Page 9, Type C. https://www.bulldogsecurity.com/pdf/RS102_112_122.pdf   You can just buy the individual relays and wire them up using your R/S's (-) lock/unlock outputs and connecting to the correct wires on your truck, you don't have to use their "778 Relay" kit.  You will need 30/40 amp SPDT relays and a fuse holder.

Some R/S units can support this style of locks directly (Type C) without extra relays, like Bulldog RS1100 and DEI ReadyRemote 24923.  I am not familiar with the AutoPage unit and can't find an install guide for it to help.



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Soldering is fun!




Posted By: kreg357
Date Posted: March 13, 2010 at 6:38 AM
After correctly installing the R/S to the door locks, the trucks door lock buttons ( and factory remote keyless, if equipped ) will still function normally.  ( Of course, this assumes that your truck came with factory power door locks. )

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Soldering is fun!




Posted By: tedmond
Date Posted: March 13, 2010 at 6:46 AM

lock - light blue (+) @BCM
unlock - white (+) @ BCM

bcm is located behind the drivers side of the dash.

if the autopage unit only has negative outputs, you need 2 relays and wire them like so

85 - lock or unlock
86 - constant 12v
87 - constant 12v
30 - to lock or unlock wire.



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Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert





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