warning buzzers

[betty boop]

Im looking for help on causes of 2 beeps every 60 seconds on the merc 4.3 mpi warning system - we had the boat on the river all weekend with no issues. had her running for 30 mins returning home and after a short stop at a lock the alarm started when we restarted. all gauges are reading OK lubes /oil too. literally just came on with no real changes in circumstances. the only thing I was thinking may have changed is the volts drop a bit when trim switch pressed with a dip in revs - I cant say it happened before but you never know.

[Ianfs]

Not sure if this is any help Ian, but repeated beeps are soft alarms. Continuous beep is a hard alarm.

You'll need to have a plug it in to be able to read the fault though, it could be a number of things.

[betty boop]

thanks Ian, Im guessing it wont be one of those cheap plug in ECU readers you get from Argos? with any luck it will go as quick as it came next time I start her up