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Concerning the 50% available power, i must check the starboard engine which tvm is fully working if it has this guardian limit as well........normally it should have 100% available power....

Maybe i must send an e-mail to Mercruiser with engine's serial and ask them if the PCMs i have are these which the engi es left factory....

Is it possible with G3 to make something like uninstall the current software of CCM and install from beginning the version 0076 as engine pcm sais to the orange sticker?...or if for some reason (as i bought the boat used without clear service history) the ccm have some other version, can i i...

What does it mean......is it possible that the pcms have been changed???

My engines are standard cooling. My pcm' are: 8M2015889 . And what is this orange label which say : use with version 0076 command module only - do not mix versions ??

The reflash of the tvm's is different than callibration? I am going to tell my mechanic to make a reflash...maybe something was not installed correct. The reflash is made by click the reflash button at G3 after choose the ebom? It will chose by itself which software to install, or we must choose...

Well, i repaired the harness, but nothing again.....i also checked the harness going from smart junction box to the engine and all the pins are ok ...i mean there is continuity between pins at start of harness and at the end... All i can think now is two things. 1. The smart junction box with...

I am checking again the continuity tests i made and i just saw something.The A1 pin from PCM (12v wake uppower) is connected to 3 pins of the TVM harness giving obviously 12v to three seperate circuits. These pins are B,C,D. In port engine D pin is not connected with A1 pin and obviously does...

I want to ask something else. Last year the engines worked in guardian mode 50% with no active fault when scanning with diacom. My mechanic told that this happened because axius tvm was not connected. In case that the problem with axius will not be solved (back to steering cable as last year)...

Yes. There is no connection between B and D pin of TVM 14pin connector and there is no connection between B pin (TVM connector) and A26pin and B23pin from PCM connectors. There is also no co nection between D pin(TVM connector) with A1 pin. At starboard engine these pins are connected. In...

Today i checked the harness and pin continuity. I unplugged the three connectors of the PCM555 and the 14pin harness going to tvm actuator. I wrote down the continuity of every pin from TVM going to PCM from starboard engine which's the actuator is functional and i made the same to the port...

Thanks for the info. You are asbolutely understood and i will tell my mechanic to get this info from MercNet. Comcerning the White Glove service bulletin v3, is there any number (like 8M0061781) to find it?? Many thanks again

My mechanic just told me that has access to all service manual, so this seems to be solved. My last attempt is to check if the 5V sender power or ground is interrupted somewhere and fix it. I will keep you informed how is going. You help me very much and thank you all !!!!

Big help for Start!! Thank you very much. I believe my mechanic has access to service manuals.....#33 and #53 are what I need.... Muc is there anything you can send me from MercNet concerning the history of the boat??? Is it possible?? Thnk you very much for the help!!!!

It does not open.......

You mean that you have access to a kind of previous service of the boat???? No, my mechanic despite he is mercruiser certified mechanic, did not has this access or he does not even imagine that he might has access to the history of the boat. As I bought the boat from the second owner ( I am the...

I am looking for PCM555 pin out....

Sorry to ask but you find some kind of book service from engines serial number or the "history" you say is the posts I made concerning axius issues...I am little confused as my English are not so good....My mechanic knows all I know as well...nothing more.....

Does anybody have the pcm555 (14pin harness) pin out of the 3 pcm's connectors??