optimax fault codes

[bwinterrowd]

I have a 2005 200 hp optimax. The fault codes are as follows:
PITOT CKT LO
OIL LVL CKT HI
FUEL LVL CKT HI
SEA TEMP CKT HI
TRIM CIRCUIT LO
MOTOR RUNS FINE WITH NO ALARMS
WHAT IF ANYTHING ARE THESE FOR?
THANKS

[Ski]

They are for options that are not installed, The ECU is looking for signal from senders that are not there and storing them as faults. Not being necessary for the engine operation they do not trigger the horn.

[bwinterrowd]

Thanks SKI