Error code Linc 2. DTC 502

[nautiques4life]

Tried a quick search, wondering if maybe admin could make a sticky or a reference post of diagnostic error codes for these boats. I understand the list could be rather extensive... Maybe just most common, or most worrisome? Not sure if nautiques would provide it? Or is there a website for these?
Anyways my dealer is closed Mondays... Anyone have any ideas for:
DTC 502 Roadspeed input loss of signal
SPN 84 FMI 8

[ScooterMcgavin]

I think that's for the GPS antenna possibly

[nautiques4life]

Thanks... That's my guess too, speed went crazy on the dash cruise control had no idea what was happening, pressed dismiss, rode fine for the next hour then happened again. Guess I need to call the dealer tomorrow.