ECU MEPM problem 2001 Seadoo GTX RFI - Multiple sporatic warning beeps

[frozenokie]

At the lake, parked the doo. Went back about an hour later to go home, and when I attach the lanyard, I got the normal 2-beeps, but immediately followed by four longer beeps. Shop manual says "problem MPEM not communicating with ECU" in the troubleshooting chart. It also made the solenoid chatter like it was bad, but I replaced it, so that isn't it. Check all the connections - all good. Full battery charge - and I get the same thing over and over, except sometimes I don't even get any beeps or I'll get 2-beeps normal, and 1 long beep or three long beeps. Sporatic behavior on the warning beeps. The ECU/MPEM box makes a series of clicks and I don't think that's right.

Checked on a used part - $529 OUCH!!! So I ask if anybody has experienced similar or same and if they have a suggestion on other things to try or check.

Thanks for any help in advance!!