Resetting KAM
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect the negative cable from the battery for a minimum of 5 minutes.
After KAM has been reset, DTCs P1000 and P0603 will be stored in the PCM.