2004 f150 xlt computer module
#1
#2
I looked in the F150 service manual, and it shows that the vehicle security module is behind the left side rear quarter trim in the regular cab and behind the rear cab trim behind the rear seat back in the super and crew cabs. My reccommendation would be to take it to the dealer that you got it from, or to the neighborhood Ford store if you bought it elsewhere. They can retrieve that code using WDS in about 2 minutes. If they do charge you for this, it probably won't be too much.
#3