No, it is not common for the PCM to go bad. Is your friend connecting the tool to the OBDII connector under the steering wheel (to the right)? If so, the fuse may have blown that powers this connector plus the accessory plug (cigarrette lighter).
Fuse #41 is what I would check first.
Give an answer, they learn for the day; suggest a search, they learn for a lifetime.
2005 F150 STX Regular Cab (4.2 liter V6)
Last edited by Bucko; 12-13-2010 at 04:21 PM.