[rayzer59]

When in doubt, get the manual out: or - My Proof of the Assume Principle.

(Hanging head in shame) Yes, I applied my knowlege of systems I know to a system I don't know.

Manual says, retighten cap, if condition still exists, MIL (Malfunction Indicator Light) will illuminate. Message will continue for several days (probably needs a set number of key cycles without a repeat failure to automatically clear the code).

I do not have a MIL indicator.

We experienced a strange set of climatic changes, and my tank is very nearly full. I expected that these were the cause of the code, but also expected the message to clear as soon as the condition was no longer present.

I will report any change, and try to keep up with the number of key cycles.