Originally Posted by martysmartie

Yep they do have a self diag built into the dash as any modern Ford does, to access you need to hold the trip button in and turn ignition key on simultaneously keeping the button pressed until a 'gauge sweep' will then be performed, at which point the millage display will disappear, keep pressing the trip button to cycle through the different modes (To which there is alot) IIRC it's the fifth or seventh option which is for DTC'S in any case this is what you should see on the display.

See if there are any codes thrown up here, it should be noted this is no substitute for a decent scanner nor will it show up faults like one would.

Should have a letter followed by four digits, to revert just turn ignition off and on again.

NB This will reset the millage trip, NOT millage.

Martin