Modern Vespa

Hi there.
New to the site and just after a bit of advice.
Had my ET4 for almost a year, purchased off a motorcycle mechanic who had replaced loads of parts prior to me buying. Mid last summer i noticed that the oil pressure warning light had stopped working. Checked the oil and its fine. Regularly check it and its fine. Done nearly 1,000 miles since it stopped working. I'm about to take for the MOT and before the next Vespa meet in Coventry in April, i intend to take the mirrors off and part of the dash to do a couple of repairs. Anyone else had this and if so, are your thoughts burnt out bulb or are these common faults on the ET4's? I'm expecting it to be a burnt out bulb or shorting somewhere but just curious if its a common problem. Don't see many posts relating to ET4's to be fair so any advice would be greatly appreciated.
Nick

I'd suspect the connection at the sensor. so check there first.

but since you're in the headset, checking and replacing that bulb is easy enough.