How to determine Make/model of unit?
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=83672
Printed Date: July 15, 2025 at 4:40 PM
Topic: How to determine Make/model of unit?
Posted By: danlicharson
Subject: How to determine Make/model of unit?
Date Posted: October 04, 2006 at 6:33 AM
Hi everyone,
This is my first post here, but I've lurked, searched, and found some great info in the past.
I have what I believe to be an Astroflex remote start unit that i removed from a vehicle on our used car lot. I've intalled many remote start and alarms in the past, but I'm not familar with this brand. The reason I believe the unit is an Astroflex is that the GM Passlock III interface that was on the vehicle has the astroflex name on it.
Everything was working correctly when I removed it, but we have a policy to remove any aftermarket systems from used vehicles.
The printed label on the rear of the main unit is:
OB 3250 TW
serial # 567 385 599 825
FCC NAH 800R
Canada 2678 102 309 A
Besides the main unit and the passlock III interface there is also a smaller "black box" with model: IMO720
Before I go too much further, can any of you guys help me out with figureing out exactly what I have here? My goal is to reintall the unit, minus passlock into my '90 Celebrity winter car.
Thanks,
Dan.
Replies:
Posted By: josh1979
Date Posted: October 04, 2006 at 8:43 AM
i've found model #s on the circuit board before so open it up and if there are any numbers search them on google. thats what i do
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bring back the rotary phone so i dont have to press 1 to proceed in english
Posted By: Velocity Motors
Date Posted: October 04, 2006 at 8:44 AM
That's an Autostart/Pro Start brand model 3250TW from Canadian Tire.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: danlicharson
Date Posted: October 04, 2006 at 12:41 PM
Thanks for the help guys. I can't find an installation manual or wiring diagram for a model # 3250TW but I think I've found something close. Most of it is the same. Won't hurt to try it.
Posted By: danlicharson
Date Posted: October 05, 2006 at 7:46 PM
All installed and working fine. Thanks for the help. I've just got the door locks and liftgate release to hook up. Is this fairly straight forward on an early 90's chev? I've only ever done door locks on a Dodge.
Posted By: danlicharson
Date Posted: October 06, 2006 at 6:50 AM
Got the door locks figured out. Just had to use a couple relays to switch polarity. I cant figure out the liftgate release though. On the car, it only works with the igition on. As far as I can tell, the liftgate release is activated by applying a ground through the release button to a 12v key on circuit. I can't figure out how to apply 12v to that circuit, and then ground that circuit with the neg trigger from my remote start unit. Maybe my brain is just too fuzzy from too much overtime.
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