cranks fires but won't start

[chevyCowboy]

Hey guys been away for a while but I'm having trouble today. Started the truck about 10 last night parked it and now it won't restart cranks along time fires but won't run. Security light will NOT turn off so I'm thinking pass lock. Any help?

 

[chevyCowboy]

Got it started. i un hooked the batts and touched the + to the - on both sides hooked them back up (dont think this really helped but i did it) security light still stayed on. My mom ran my wife the 20 miles home from our cabin to get her suburban and my scan tool, while i stayed and helped my dad with the projects we had going. When she got back i hooked up the scanner and turned the key on and the security light went out so i tried it and it started, wife wasnt to happy that she had to go do all that for nothing but i did check the codes and i cant remember the numbers now but they where both for the anti theft system. the good news is i told her how if i got a reflashed ecm they can turn that off so she said i can order one :thumbsup: so i finally get to get my tune