Security light flashing on 2000 GMC

I put a remote start on one of my friends trucks and just recently his security light will start flashing when he is driving down the road. It starts up fine with the remote start every time. He has got the bulldog deluxe 500 starter with the bulldog 791 bypass module. Does anyone have any ideas whats going on? From what I understand if his light is coming on then it should not start at all.....thanks for your help.

give us the exact make and model...I think it may have to do with that bypass moduleSeth Alvo     NY

Mobile Electronics Installer

imseth85 wrote: give us the exact make and model...I think it may have to do with that bypass module

its a 2000 gmc 1500 truck. i never did hook up the factory alarm disarm wire, would that have anything do to with it?

KarTuneMan wrote: http://www.bulldogsecurity.com/bdnew/newsite/pictures/instdiagrams/46.jpg Make sure you have used the 2nd ign on your bypass.

I actually have this bypass module

http://www.bulldogsecurity.com/bdnew/newsite/pictures/instdiagrams/52.jpg

KarTuneMan wrote: does that module do passlock 2? and 1 ..... Your truck has #2

yes it does passlock 1,2 and the vats

most all of those trucks u do have factory alarm u have to wire disarm when unlocked . sounds like ur bypass has problems. bulldog has a bad failure rate...

I asked him again today and he said that his securit light will just come on after driving 30 minutes....whats going on, is it still the bypass that is causing this?