How to start my truck 2004 Ford F1 50 crew cab I think the antitheft system has got my engine shut down I'm so cold how can I start my truck

Hmmmm dose dash light up and anty theft light on when key is question one is it a big key or a small key the housing. Question 2 a bad ground to the motor cause this problem to and 3 under neth steering column there a pin hole for inserting a pic for ignition switch for remove u have to do this with key in switch remove and insert it for question if a big key the housing there a chip in it if small one no chip if key was drop more then a few times or in water bad key u have to change out key switch with new when do this with new key battery has to be disconnected in stall key switch hook battery up turn key on waite 10 min so it can learn for question 2 if u hear relays clicking when turning key on for starting but not starting i would check wires off starter or ground for motor

Wiring in ignition or batt cud be fault--the inline fuse as a factor--or igntion switch/key lock--if it was theft system-car should start after putting key to ON after 10min--may want to try unplugn computer for a few or havin it scanned