Code E54 5 volt reference voltaged shorted to ground (12x12 dual power SL tractor). Look at the clutch potentiometer and wiring for damage or failed pot. Middle wire in harness plug is the ref voltage wire.
Ash
December 2010
what's it not doing
scrapman
October 2010
I can answer this question...
I have 1997 New Holland 6640. what does error code E54 mean?