bulldog 791 bypass module
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=97844
Printed Date: May 16, 2025 at 6:56 PM
Topic: bulldog 791 bypass module
Posted By: tedmond
Subject: bulldog 791 bypass module
Date Posted: October 10, 2007 at 2:37 PM
hey, Im trying to install a starter alarm for my friends 1998 pontiac sunfire. I got all wires wired up correctly, so this is my problem. The bypass kit has a blue (-) input wire to trigger the bypass unit for passlock, however, the alarm has ignition 1 and 2, but no ignition 3 that can send a negative output. Is it possible i can just add a relay to make it turn (+) into a negative (-) or can i connect it to someother wire that gives negative during crank or run? thanks to those that reply.
Replies:
Posted By: profuse007
Date Posted: October 10, 2007 at 3:23 PM
What unit do you have?
Youre on the right track w/ the changing polarity w/ a relay. Heres how:
86(+) from starter wire w/ a diode
85(-)ground
30- ground
87- to bypass blue wire
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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
Posted By: tedmond
Date Posted: October 11, 2007 at 2:53 PM
thanks for the reply, but i just probed the polarity of the relay wires. The bpass unit has one input trigger wire (-) blue. but the alarm relay, at rest, it stays at constant 12, and is switched to negative during start. If i connect the bypass (-) input wire, to my positive relay wire (at rest) will it damage the unit ? thanks. sorry if it sounds confusing
Posted By: Twelvoltz
Date Posted: October 11, 2007 at 2:58 PM
What is the make and model of the RS you are installing?
If you were to wire it to come on with the wire that energizes the ignition circuit you would have to isolate that trigger so it is only active while using the RS and not when using the key. It is easily done, but your system probably has the proper output just labeled different. For example, the DEI products label the wire as status output.
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Installer, IT support, and FFL. I need less hobbies.
Posted By: profuse007
Date Posted: October 11, 2007 at 3:10 PM
Yeah you can do that. just simply connect the two w/ a diode so only negative can flow through.
Forget about my statement above, its not goin to work properly.
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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).
Posted By: tedmond
Date Posted: October 11, 2007 at 3:11 PM
the remost start is by TLD (some cheap ****) from china, but hey it gets the job done and its 2 way pager for under 60 bucks, cnat go wrong lol. but i got it for free so watever. so, "isolate that trigger " do i use a diode? on the relay circuit that triggers the relays during rs? thanks Twelvoltz for filling me in
Posted By: tedmond
Date Posted: October 13, 2007 at 9:10 AM
does anyone know how the bypass unit works? does the passlock activate during start or does it have to be on when ignition or accessory is on. Because, what i have tried is connecting it to the acc and ignition relay wire that energizes the relay and thatfails to work. I grounded the activation wire and it fails to start as well. but, when i tell the remote start to start, once the car waits to start, i ground the blue input wire from the bypass and it starts fine. so my question, which wire can i connect the bypass unit to on my relay? the unit does not have a ground out when running or a bypass out. like i said before its some generic module. thanks
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