Mercruiser scanner

[troutfishin]

Does anyone have or know someone that has a Mercruiser scanning tool? I have a 2004 Merc 5.0 MPI Alpha Gen II sterndrive that is giving me a soft alarm(2 beeps once a minute). I know that there are only a few different leads that can give this alarm, but I would rather not start replacing every sensor on the motor just to find the culprit. I suspect it's the IAC, but would like to know for sure.

Thanks,
Todd AKA troutfishin