No crank

[nscarfan48]

My 2003 4.6 liter Explorer shut off and the would not crank over. It has power and all lights work. Engine does not turn over and does not click and the lights do not dim when trying to start it.
I plugged in scanner and it will not communicate with vehicle.
Any ideas?

 

[Tech By Trade]

Ignition cylinder or PATS i bet.

 

[Adam Robert]

I am working through this exact scenario in my 02 ST 4.0.

I have confirmed my PCM is good and will communicate when swapped in another vehicle.

I do not think it’s the ignition immobilizer or the PATs. The theft never changes from its slow flash, regardless of key position or if it’s in at all. If it were either of those, the theft would flash quickly if there’s an issue or disappear completely if there’s isn’t one and a good key is in.

Any updates on this would be greatly apprenticed.