compustar alarm to door lock actuators?

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=121758
Printed Date: September 12, 2025 at 11:49 AM

Topic: compustar alarm to door lock actuators?

Posted By: dog812
Subject: compustar alarm to door lock actuators?
Date Posted: May 09, 2010 at 7:24 PM

I have a 88 4runner
I added in a Compustar alarm system.
I have now added door lock acutators in the doors.
I know i need to add relays.
Which relays will work for my setup??
Maybe a ebay link or something?
Also I just want the doors to open when the alarm is disabled and lock when enabled... nothing fancy.
Any help wiring this would be great.

Thank you for the help.

Replies:

Posted By: t&t tech
Date Posted: May 09, 2010 at 7:50 PM

Two relays wired for reverse polarity! Not familiar with that unit, does it have on board relays? Or ist it just trigger wires?

Check the relay section for the diagram!

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Posted By: i am an idiot
Date Posted: May 09, 2010 at 7:53 PM

https://www.the12volt.com/doorlocks/page3.asp#arp

Posted By: dog812
Date Posted: May 09, 2010 at 7:55 PM

Does this diagram help?
https://www.compustar.com/alarm/AlarmItDetails.pdf
I am new.. any basic info would help..
I looked at the relay section.. but i dont know which i need?

Posted By: i am an idiot
Date Posted: May 09, 2010 at 8:15 PM

i am an idiot wrote:

https://www.the12volt.com/doorlocks/page3.asp#arp

Posted By: dog812
Date Posted: May 09, 2010 at 9:20 PM

uh.. yah like i already said i read that .. what ones do i need?

Posted By: i am an idiot
Date Posted: May 09, 2010 at 9:37 PM

Click the link again, and this time do not scroll up or down. The link brings you directly to the one you need.

Posted By: the12volt
Date Posted: May 09, 2010 at 9:43 PM

Either https://www.the12volt.com/relays/relaydiagram4.html or https://www.the12volt.com/relays/relaydiagram48.html ...they're both the same.

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Posted By: kreg357
Date Posted: May 09, 2010 at 9:53 PM

Check the wiring diagram that came with your add-on power door lock actuators. It probably is the "5 Wire Reverse Polarity" type. The link posted above brings you right to the wiring diagram for that type setup. You will need two +12v SPDT relays, an inline fuse holder and 30 amp fuse, some 14 guage stranded wire, heatshrink tube or quality electric tape ( Scotch Super33+ ), soldering gun & solder.

Check the Compustar alarm diagram to find the correct Lock and UnLock output wires. Additionally you might have to do some programming to get the alarm to do exactly what you want.

You can search EBay for "+12v SPDT relay 30a" for the relays you need. Buy ones that come with the 5 wire connector & harness.

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Soldering is fun!

Posted By: i am an idiot
Date Posted: May 09, 2010 at 9:54 PM

https://www.parts-express.com/pe/showdetl.cfm?Partnumber=330-073

Posted By: dog812
Date Posted: May 13, 2010 at 11:55 PM

It was diagram 4.. took some trial and error but was a fun project.
thanks for the help..