Either disconnect the battery and leaving it a while or touching the two leads together will often clear a lot of faults out of memory. This gives you the opportunity to check if it comes back again when you start it up again some faults can be stored even though no longer actually there.
Some faults can only be cleared with a plug-in though and you would really need a dealer tech to confirm if this is a fault likely to be stored or not but it is always worth a roll of the dice. Disconnecting and re-connecting batteries, can sometimes throw up some weird symptoms/faults also means it’s worth doing.
Giving the connectors a good spray with WD40 will probably allow you to ascertain if they are the actual problem in lieu of a proper clean up later.