V85tt low oil pressure switch

[Bison]

Hello folks,
Just got my Euro5 V85tt back from the service centre after having an engine out oil leak fix, it was coming from the left hand crank case joint, a big job. Any how, trailered it back, started it up and the red triangle came on. ALARM OIL SENSOR. So removed the r/h crash bar and checked out what I believe is the low oil pressure switch?, the one on the side below the r/h cylinder. 5v when the ignition is on, and 5v when the engine is running. remove the wire and 5V to the wire with ignition on. No continuity between the screw and earth (ground) on the switch body when the wire is off, engine running or not. Does this mean the switch is goosed?,I think it does?. I sure hope it isn't really low oil pressure. The mechanic had road tested it and he said it was all fine.
So, in the meantime I removed the low oil pressure switch, connected it to my meter and blew a little air into in, it worked, oh dear. Now, when I removed the wire the screw and terminal were a little cruddy, I cleaned it all and replaced the serrated washer, of course the warning light didn't go out, but my question now is, does it have to be reset or will it go out by itself?. I have Guzzidiag, but I believe it doesn't work on the E5?.
Thanks in advance.
Alan.

[Bison]

Update,
After cleaning and refitting the oil switch, I left it overnight, connected my meter to the terminal and to the body with the wire off, fired it up and the switch worked, so it does have oil pressure, thank goodness!. I'm hoping it was the crappy connection or dirt. I'll have to trailer it back through to have it hooked up to the diagnostics to have the warning light switched off and retested next week.
Will update next week.
Alan.

[egschade]

The early model sensors are known to fatigue and fail. Cheap and easy enough to replace with the upgraded part.

[injundave]

I have a 2019 V85TT which I bought in 2021. The first time I rode it I had a red alarm come on, something about oil pressure. I was miles from anywhere and had plenty of oil so I rode home slowly and started investigating.
Eventually I arrived at the switch below the r/h cylinder. The terminal was loose even though the nut was as tight as it could go. I found a very small washer in my collection which, when fitted, made the terminal tight.
I have never had another problem since.

Dave

[Bison]

InjunDave was on the mark, that's exactly what the problem was, a small washer as a spacer and it was fixed,
Alan.

[guzziart]

Good to know vs installing a tee & gage for redundancy.