Fault code diagnosis 5.0MPI two minute beep alarm

[the man]

2004 Mercruiser 5.0 SN OW003759 with Bravo 3 SN OW108118.

Symptom: single beep every two minutes. Alarm goes away with key cycle, returns with planing speed.

Fault codes read on Rinda Marinetech:

75: smartcraft- NA
94: Pitot pressure sensor (used for boat speed) circuit open
104: smartcraft- NA
119: Steering sensor circuit open
130: Trim sensor circuit shorted

I have looked for cut and/or disconnected wire and can find none. All gauges and instruments work. How can I make this alarm go away? I assume if I choose the "erase alarm" option that it will just come back when I get on planing speed again.

OR.. other suggestions? Thanks.

 

[the man]

Re: Fault code diagnosis 5.0MPI two minute beep alarm

bump-

Logic may state that this would be the Pitot issue, as it happens only on a plane, but then again, it may have something to do with engine RPM. as stated earlier, all instruments work fine and no wires are visibly damaged. How do I get this alarm to stop going off?