Ef falcon 4.0 will not start fuel pump won't prime and will not turn over ?? The smart lock light flashes continually while I hold the key in the start position .... The car was running fine until disconnected the battery

I've tried tapping the replays in the bcm but no help!

Iv a a similar problem in my eb (I know it's a diffrent model!) I had to re-solder the relay pads on the board, this however may not be your problem!

Maby try this?
(5th post down)

ford-4l-and-6-cylinder-f1/ef-smartlock-issue-t86440.html

Try leaving ignition switched on for an hour or so then recheck smartlock warning