Logo
Get instant online access to repair manuals for your Mercury / Mariner outboard. Online Manuals
MercuryMariner
Order printed Mercury / Mariner service manuals — shipped to your door! Printed Manuals
MercuryMariner
Use engine diagrams to find & order parts for your Mercury / Mariner engine. Engine Diagrams
MercuryMariner
Find parts quickly with Mercury application guides. Quick Parts Guide
MercurySierraCDI
Results 1 to 20 of 20
  1. #1

    Default 1999 Mercury 225 EFI 4 Beep Issue

    Could really use some help, been working on this for some time but cannot figure it out. Took it to one dealer but they could not fix it.

    I get the dreaded 4 beeps from my motor, here is what I have tried:
    1. Low oil switch tested OK, checked wires to ECM connector - Good
    2. Water sensor tested good, also reading 10VDC at connector
    3. Head temperature sensor, good, reads 1.8K
    4. Air temperature sensor test OK, reads 16K
    5. Changed ECM module (bottom module), still 4 beeps
    6. Tried disconnecting Water sensor, Air temp, MAP sensor, bypass water sensor, still get 4 beeps

    Motor runs perfectly but gets 4 beeps.

    Any help would be greatly appreciated, just do not know where to go from here.
    Thanks

  2. #2
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Temporarily bypass the oil tank sensor and see if the issue goes away. If it does, change the oil tank. The sensors never(rarely) fail. It is usually the float in the tank that gets heavy with oil and sinks to the bottom.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  3. #3

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Thanks for your response, I did that in #1. I bypassed switch but no change. I verified the signals were getting to the ECM also.
    Bob

  4. #4
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Quote Originally Posted by BigBob001 View Post
    Thanks for your response, I did that in #1. I bypassed switch but no change. I verified the signals were getting to the ECM also.
    Bob
    So you disconnected the oil tank sensor wires from the engine and connected the two wires on the engine side together and ran the engine and you still had an alarm?

    Do this to the reserve oil tank too if it has a sensor.

    FYI The engine mounted tank has to be completely full.
    Last edited by Docksidemarineservices; 01-25-2018 at 05:16 PM.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  5. #5

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    I really appreciate your replies. I disconnected the sensor and tested the sensor it is working perfectly. Tank is filled with oil. I also shorted the two wires going to the ECM and tested. Lastly I unplug the connector on the ECM just to make sure the shorted wires signal was getting back to the ECM and the connector look good. I feel confident it is not the oil reservoir. The main reservoir in the boat does not have a sensor. Thanks, Bob

  6. #6

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Tried a fully charged battery connected directly to the motor (bypass switch and cabels) and did not solve the issue.

    The TPS sensor was slightly out of tolerance so I adjusted it, did not solve the issue.

    Just FYI, the motor does NOT need to be running to get the 4 beeps, just must have the key on.

    Bob

  7. #7
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Does you engine mounted fuel filter have a water sensor in the bottom of it? Pull the wire off and see if the alarm stops.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  8. #8

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Thanks for replying, I did remove the wire from the bottom of the filter and verified it had 10V.

  9. #9
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Quote Originally Posted by BigBob001 View Post
    Thanks for replying, I did remove the wire from the bottom of the filter and verified it had 10V.
    Did you test it with the wire disconnected?
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  10. #10
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Serial number?
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  11. #11

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Serial number is 0G806098

    I tested it with the water sensor disconnected.

  12. #12
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Now, Bypass the oil tank sensor and disconnect the wire on the filter and see if you still have an alarm. They both may be setting an alarm at the same time, rare to happen but it does.

    Just to clarify. You do not have an oil level senor in the remote oil tank? No wires to it.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  13. #13

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    All of my testing has been done with the wire disconnected from the filter, the water sensor wire. Therefore, I have bypassed the water sensor and the oil level sensor at the same time.

    Also, there is no wires going to the oil tank in the boat.

    I really appreciate any input, I am stumped.

  14. Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Almost sounds like a ‘TPS no adapt.’ Has anyone tried to lower the idle by adjusting the throttle plate stop screw? If the ecm/pcm sees that the plates are out of range then you may get four beeps without performance loss. I’d like to verify the tps is within range with cds.

  15. #15

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Have not tried to lower the idle by adjusting the throttle plate stop screw. I did adjust the TPS sensor slightly. I do not have access to a CDS but I plan to take the motor in for repair as soon as a certain local Mercury dealer has available time. Should be a few weeks. Someone recommended this dealer, it is farther away but I just want it fixed.

    I did take it to another dealer couple years ago but pulled the boat without resolution.

    Thanks!

  16. #16
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Do you have the quad warning light on your helm. If it was the TPS this light would flash.....

    What is the time frame between the end of one Four Beep warning and the start of the next four beep warning?
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  17. #17

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    I think I have the quad light on the dash and a couple of them come on when I turn the key on initially. However when the alarm sounds none of the lights light up.

    Time between the four beeps seems to vary. I would like to say it is always a couple of minutes but seems longer sometimes but never shorter. If it is critical reply and let me know and I will measure the time.

  18. #18
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    5,214

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Two minutes between the four beeps is water in fuel.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  19. #19

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    Quote Originally Posted by BigBob001 View Post
    Could really use some help, been working on this for some time but cannot figure it out. Took it to one dealer but they could not fix it.

    I get the dreaded 4 beeps from my motor, here is what I have tried:
    1. Low oil switch tested OK, checked wires to ECM connector - Good
    2. Water sensor tested good, also reading 10VDC at connector
    3. Head temperature sensor, good, reads 1.8K
    4. Air temperature sensor test OK, reads 16K
    5. Changed ECM module (bottom module), still 4 beeps
    6. Tried disconnecting Water sensor, Air temp, MAP sensor, bypass water sensor, still get 4 beeps

    Motor runs perfectly but gets 4 beeps.

    Any help would be greatly appreciated, just do not know where to go from here.
    Thanks
    Did you ever get this figured out? I have the same issue with motor off also. 4 beeps.

  20. #20

    Default Re: 1999 Mercury 225 EFI 4 Beep Issue

    UGH looks like the poster is gone dang it!

Similar Threads

  1. beep....beep....beep oil level warning
    By Beckoning in forum Mercury Mariner Outboard Forum
    Replies: 0
    Last Post: 07-02-2017, 12:18 PM
  2. beep....beep....beep oil level warning
    By Beckoning in forum Mercury Mariner Outboard Forum
    Replies: 0
    Last Post: 07-02-2017, 12:10 PM
  3. Help 1992 60 HP Evinrude - turn on engine and after 5 minutes: beep, beep , beep
    By michael1983 in forum Johnson Evinrude Outboard Forum
    Replies: 3
    Last Post: 09-13-2014, 10:19 PM
  4. 1999 Mercury 115 ELPTO 2+2 knocking issue!
    By thewizard007 in forum Mercury Mariner Outboard Forum
    Replies: 0
    Last Post: 08-26-2014, 09:30 PM
  5. 1991 60 hp 2 stroke beep beep beep
    By karlow in forum Johnson Evinrude Outboard Archive
    Replies: 1
    Last Post: 10-21-2007, 07:52 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •