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Old 04-15-2021, 11:52 AM   #1
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Connection Mariton J2k100 to John Deere Engine

Hey folks,

I thought I would check to see if anyone has put in a Maretron J2k100 J1939 to NEMA2k gateway on a John Deere 4050 engine? This is my next project and besides the below link I found a reference that the engine itself may have a port available that is used for mechanics to pull data off of. However, there is at least a dozen different connections on the engine or engine computer. If someone has done this I would love to hear.

https://www.maretron.com/support/kno...cle.php?id=563
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Old 04-15-2021, 06:26 PM   #2
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Hey folks,

I thought I would check to see if anyone has put in a Maretron J2k100 J1939 to NEMA2k gateway on a John Deere 4050 engine? This is my next project and besides the below link I found a reference that the engine itself may have a port available that is used for mechanics to pull data off of. However, there is at least a dozen different connections on the engine or engine computer. If someone has done this I would love to hear.

https://www.maretron.com/support/kno...cle.php?id=563

I'm not familiar with a Deere 4050. Could it be a 4045? The first question would be whether the 4050 is based on J1939.
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Old 04-15-2021, 08:42 PM   #3
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Yes type. The engine is 4045TFM75 and does support J1939 and uses it to communicate with the digital display computer.
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Old 04-16-2021, 08:33 PM   #4
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Yes type. The engine is 4045TFM75 and does support J1939 and uses it to communicate with the digital display computer.

That makes more sense.


The Maretron device works fine with that engine. At the instrument panel there is a three-wire harness and triangular three-pin plug. That's the J1939 bus. I just cut the wires and butt spliced in wires to the J2K100. If you wanted to get fancy your could build a Y cable out of Deutsch plugs. Yellow is CAN+ and green is CAN-.
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Old 04-17-2021, 11:03 AM   #5
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Thanks Twisted tree! This is my next project so I can bring more telemetry to my SignalK server on our boat. I already got a Fire tablet setup to function as a 10" display to show engine data that I want.
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Old 04-19-2021, 09:01 AM   #6
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Tracing out my wiring harness diagram it looks like I have a diagnostic port on each engine. I tracked it down and this is a Deutsch HD10-9 connector with the below wiriing diagram. The Mareton diagram for the ECU has Yellow as CAN Low and Green as CAN High. Anyone have details on the wiring pinout on the diagnostic port by chance to confirm?

Conector Wiring
A - Black
B - Red
C - Yellow
D - Green
E - Black
F - Null
G - Null
H - Null
J - Null
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Old 04-19-2021, 12:35 PM   #7
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Not sure if this helps. From operators manual for 4.5L & 6.8L. I would be interested in how it turns out. I have twin electronic controlled 6068TFM75’s with Murphy Helmview displays in the pilothouse and on the fly bridge. Fly bridge panel is erratic, sometimes no display, sometimes upside down so I’m looking for eventual replacement(s).

Good luck with your project.
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Old 04-19-2021, 02:31 PM   #8
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DCDC,

Can you send me directly the source of those screen shots. When I download and blow up unfortunately they are unreadable.

For the flying bridge helm station I have the exact same issues as you. I will this year need to go through and test out each of the gauges and the pilot computers. I am thinking of getting a customer cover 3D printed to cover the panels to keep UV and rain off them. Shoot me a photo of your instrument cluster as if it is the same layout maybe I could get a few extra printed up. I just started working on sourcing out the components and will need to build the price list.
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Old 04-20-2021, 07:57 AM   #9
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The pictures are from my hard copy manual (OMRG35856 17OCT07), which is not very clear on paper.

Attached is a screenshot from a later edition pdf I found online for Kohler generators.

http://kohlerpower.com/onlinecatalog/pdf/tp6444.pdf
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Old 04-20-2021, 09:42 AM   #10
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That was perfect and what I needed to confirm the pin information. Hopefully in 2-3 weeks when I get parts I will have this hooked up to the network.
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