After running my 2003 Seadoo 4 tec for approximately 20 minutes there was a long single beep and the check engine light came on. I then put the Ski back on the lift, flushed the engine with fresh water and then shut the engine off by removing the key. However, something would come on every few seconds then shut off. It was a humming sound followed by a click just before it stopped. Then the cycle would begin over and over again. The only way I could get it to stop permanently is to remove one of the battery terminals. Any suggestions? Thank you