alarm to centrallock e36.

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=103770
Printed Date: July 18, 2025 at 10:33 PM

Topic: alarm to centrallock e36.

Posted By: alxz
Subject: alarm to centrallock e36.
Date Posted: April 06, 2008 at 3:28 PM

Hey!

As the topic says, I am installing an alarm and want to connect it to the cars centrallock-system.
The car is a BMW E36 91model.

My alarm has six different diagrams for centrallock-connection..
I'm not sure, but i think i should use "positive triggering" at this car???

Diagrams from alarm instructions:

I need to know whitch connection i should do, and i hope some one knows witch cables in the car that is the lock and the unlock cable for the centrallock-system ??

Sorry for my bad english..

Thank you for any answer :-)

Aleksander
Norway

Replies:

Posted By: howie ll
Date Posted: April 06, 2008 at 5:02 PM

Its positive going, connections are inside the contol box on these early versions. If you are lucky there is a previous alarm using this.

Posted By: howie ll
Date Posted: April 07, 2008 at 5:53 AM

CDL relay that year is by the steering column, remove plug, pin 24 is lock pos and pin 25 is unlock pos, you will have to insert wires yourself or make up terminals.

Posted By: alxz
Date Posted: April 07, 2008 at 3:35 PM

Hmm...

But.., i can connect the wires from the alarm between one of the central-lock motors and the central-lock unit..??

(Its 5 or 6 wires for each of the front doors..)

(the car is from mount 11 year 1991)

You talked about CDL relay.., what is that..??

Again, thanks for any answers :-)

Posted By: howie ll
Date Posted: April 07, 2008 at 4:49 PM

What you are suggesting is a waste of time and probably wont work because of the CDL relay to the side of the steering column.

Posted By: alxz
Date Posted: April 08, 2008 at 9:31 AM

howie ll wrote:

What you are suggesting is a waste of time and probably wont work because of the CDL relay to the side of the steering column.

Well..., it won't work to connect the cables from the alarm to a unlock & a lock cable to give them 12v to lock & unlock the car..??
If i use a multimeter to test witch cables that get power when lock&unlock, and use this cables connecting to the alarm.., this woun't work???

What is the CDL relay.., and what is it's work..???

Thank you! :-)

Posted By: alxz
Date Posted: April 09, 2008 at 9:48 AM

I have tried to search for CDL on the internet, but i do not fint mutch.... CDL doesn't mean Central Dead Lock ???

I am going to use a multimeter to test if there is outputs from the six wires in the door, and voltage soon, if someone can't tell me more :-)

Again, Thanks for all help!

Posted By: alxz
Date Posted: April 09, 2008 at 2:52 PM

Sorry for the tripple posting.., but i do not have permissions to edit my posts... :P

Here are the result from my multimeter-testing...
posted_image

Thanks a lot! posted_image

Posted By: alxz
Date Posted: April 11, 2008 at 11:15 AM

howie ll wrote:

What you are suggesting is a waste of time and probably wont work because of the CDL relay to the side of the steering column.

Well.., you right! :-)

The "CDL" relay are giving power to the locks when locking/unlocking??
More excact..., where can i fint this relay?? (It's external from the centrallock module..??)

Thank you very much!!! :-)