Hi. The vehicle: 2001 Ford F 150- Super Crew

Trying to perform a Key Programming procedure which I,m able to access the Key delete and prog. It goes thru all the motions and when I  cycle the two keys no keys are programmed. Tried several times to no avail.

Procedure indicated by the MS908 pro

Position the key to off position

Disconnect the j2534 from the obd2 socket

Cycle key no.1 to Run position for 3 secs

Cycle key no.2 to Run position for 3 secs

Cycle key no.1 to Run position for 3 secs

Two key should be now programmed

When I complete the cycle, the theft warning light still there and the vehicle cranks but wont start.

Its the first time it happens to me after successfully performing many of these key programmings.

Could this be a bad PATS module? Any help is appreciated.