Originally Posted by frankbev
I have a 2003 Trailblazer that I installed a Avital 5303 in it with the DEI 455G and a Bulldog key elem. When I try to remote start it the truck trys to start but wont... I checked the remote start and it is turning all the igintions and feeding power to the Start wire but wont start. It works sometimes when I turn the key to on. Then works for a bit and stops working again. Need help what this could be. Thanks in advance
When you first activate the remote start, and the dash lights up, can you see the security light blink? It might take a couple tries.
The 455G will disable the factory alarm for alarm/keyless but not passlock for remote start.
The yellow wire (start) only sends a 12v signal to the pcm. The pcm grounds the starter relay to start the engine. If the pcm does not get a valid passlock signal, the pcm will not ground the starter relay and the engine will not crank.