Key on, engine off, door shut, press gas pedal to the floor three times in ten seconds. Cycle ignition off and on, should be reset.
I may be wrong but it sounds like your alarm is the problem. This happened to my brother's van(Astro). The built-in cutoff switch in his alarm was preventing the van from starting. It may be possible to disconnect the alarm system and try to start it. That's what my brother did and it worked.
I have a 2004 F150 Heritage and was having an issue with the alarm going off when I tried to start the truck. You should have a black button under the driver side dash down by the Hood release that is the kill switch for the alarm if you hold that down while starting the truck it should keep the alarm from sounding and killing the engine.
Start the vehicle using the key or if you have set off the panic alarm you can also press the panic button on the key fob. Start the vehicle using the key or if you have set off the panic alarm you can also press the panic button on the key fob.
The alarm activated by motion sensor in the vehicle and activated by opening the door or truck.
potential energy changes to kinetic energy
the starter,battery and the alternator are good,icheck and change the the wires but the light inside the dashboard,the headlights come on but the truck will not start.
my ford f-150 truck alarm wont shut off
Backup alarm.
turn key to on position but don't start it, depress the gas pedal fully 3 times then start the truck and the warning should be gone!
The factory alarm on a GMC Sierra pickup truck can be reset by removing the fuse. Take the fuse out for 10 seconds and replace it. This will reset the alarm.
Sit on it and count to 3.... FART!!!!!!!!
Burn out the whole truck disconnect the battery do not ever drive the truck there are more but these will work. You are welcome