ECM 555 Locked?
06-12-2019 | 02:48 PM
#1
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From: Lake huron
ECM 555 Locked?
I have 2003 dual Mercruiser 350 mpi withe ecm 555 controllers.i was having trouble with the starboard engine.had a mechanic check it and he said that the controller is locked and he cannot get in.The port was fine.So I purchase a vesselview mobile.I can communicate withe the port controller but the starboard controller says”error reset key”.
can some help out?Can a controller be locked?
can some help out?Can a controller be locked?
06-16-2019 | 04:32 PM
#6
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From: Ft. Worth TX
Do not ever swap a good known ECM to a bad engine EVER - that is one possible way to knock out a good ecm possible making it 2 bad ecm s one has. AND THIS INFO coming form a guy who repairs ECM about an average 2 per week inwhich takes money out my hands. I bet you would never hear a competitor post such important info to help one out.
A scan tool is another way to test the ecm and of course what I am doing internal testing with a power supply, a scope, volt meter and scan tool along with sensors and injectors ,.
A scan tool is another way to test the ecm and of course what I am doing internal testing with a power supply, a scope, volt meter and scan tool along with sensors and injectors ,.
Last edited by BUP; 06-16-2019 at 04:37 PM.
06-16-2019 | 08:51 PM
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From: Lake huron
Thanks for this information BUP.I read where there is a yellow wire between engines that this could cause issues,as one is a master and the other a slave ecm.I want to check to make sure the cable is okay and the voltage is 12 volts.Then I will know for sure is is the ecm.
thanks alot
thanks alot
09-15-2019 | 10:39 AM
#9
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From: KY
09-15-2019 | 10:56 AM
#10
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From: Ft. Worth TX
Thanks for the call this mourning - As usual I try to help out whom ever even SUNDAY mourning at 830 am. He wanted to send me his ecm asap but I told I am not 100 percent his ecm is the issue at hand. We discussed some test to do and then I want him to report back to me to determine the next game plan..
I will update the progress here when I figure out whats going on but keep in mind I DO NOT HAVE THE BOAT / ENGINES in my hand so I have to play detective first and figure out as we go. .
.
I will update the progress here when I figure out whats going on but keep in mind I DO NOT HAVE THE BOAT / ENGINES in my hand so I have to play detective first and figure out as we go. .
.
