Have Ford Questions? Ask a Mechanic for Answers ASAP
Hello, when you turn your key to the on position does the theft light flash fast?
If you leave the key on for 1 minute it should begin to flash a two digit code. Ford example 14 can you do this and see what code flashes
If you can update me after the flashing of the code it will help. The other thing I would try if you have your owners manual is swap out the pcm power relay with a different relay and see if it helps.
Those are the only couple of things you can do without some special tools or equipment. Its most common for a pcm power relay failing but the ring around that reads the key code can also be bad.
The theft light itself will blink out a code. The PCM relay is relay number 3 under the hood. The fuse panel should have the numbers labeled.