hi ,not being an iveco tech i can only give basic checks ,if it is the low fluid level light that is on...join the wires that are on the cap together ,if the light goes out ,then you need a new cap.if the light stays on ,you need to check the wiring ,pay particular attention to where the loomtakes sharp angles on the chassis ,paying particular attention at where the cab tilts ,as that is a common place for faults to occur on any truck due to the flexing that happens when the cab is tilted...get a DAF LOL
norb
August 2011