Jump to content

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Intermitent Beeping from ECM

Recommended Posts

After operating the boat for a few minutes, the ECM alarm starts beeping. If I stop and restart, the beeping will stop for a few minutes then return. I have disconnected the engine water temp and low oil pressure switches with no change. All the guages are in the normal operating ranges. I scanned the engine with an infared thermometer and did not find any high temperatures. The boat is running fine but the beeping is unnerving. Could it be a fault code? Or the transmission high temp switch(where is it?)? Thanks

Link to comment

That's the only two other things it could be, or a ground fault on the wire from the beeper to the ECM. The ECM actually grounds (completes) the beeper circuit.

Link to comment
  • 2 weeks later...

After having read about the knock sensor possibly being the problem, I located where the knock sensor was located, mid-engine, right side when facing aft. I removed the plastic side panel to have access to that side of the engine, found the sensor, then found the wire to the sensor in the bilge. I cleaned it, plugged it back on and no more beeping. I have used the boat several times, and no issues or beeping. So much for paying to have the boat winterized then summerized!!

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...