I have the 4JH80 so the slighlt bigget sibling of the present generation common rail 4jh familily.
I am assuming that you mean this
family.
Summary -
CAN is an
electrical communication bus used in things like engines and boats (N2K is the protocol that sits on the bus).
'We' want to display the
engine informaion on the MFD displays
I have been very frustrated by this issue - and the dealers have not been very helpfull.
The CAN bus on this engine is available in two places.
1) On the 6 pin Deutsch connector labled C on the
wiring diagram. That is located at the top of the ECU above the
control panel cable.
2) On the control pannel (pins 10-11 for signal). I believe there is a spare 4 pin connector here that has the engine CAN bus on. But I haven't traced the connector name.
My assumption is that the engine is running J1939 - the engine information protocol that runs on CAN bus. I have verified that it is CAN and that it is not NMEA2K. ( Using a N2K analyser ).
The 6pin Deutsch cable looks remarkably like the
Volvo engine link connector. Even seems to have the same wire colours and locations.
Raymarine make one to
plug into their J1939->N2K gateway, Part number E70240. Cable is about $75
Then you need a gateway to do the message conversion.
Raymarine's J1939 gateway (ECI-100) is about $300.
Maretron - j2k100 - $350?
Offshore Dynamics - 3185 - $385 This looks like it would be good in multi engine situations.
(There are probably more but..)
I have the cable and the Maretron on order. (My MFDs are
B&G and Maretron setup may be easier on the B&G)
Now the cable may need rewiring to
work... this is is not a problem for me.
And the engine may not be J1939 - this would royaly suck. But Raymarine show pictures of thier gateway working in a
Yanmar setup. So I am hopefull.
Amazon say the
parts will arive this week.
Total about $500 including N2K drop cable.
I will update you all with the progress.
Mub