@MarkusT can you provide any pictures? What resistor did you use?
probably an 10k from signal to ground would do the trick. You can’t short it directly to ground because the computer expects at least some resistance even at the extremes, as that’s how it detects shorts and open circuits.
Thanks for that @MarkusT . I updated your schematic for the encoder terminators
No more annoying alarms!
Have you got the OEM encoder working for you? I have not been able to figure it out yet
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Yes, but I don’t use the remote contact from PCB 2. I changed the sketch to pin D2. Now it works. But “Steer Enable” must be “Button” and not “Switch”.
If you are running AOG V4.3 can you share your .ino?
I also find the “button” “switch” confusing.
I find button is NO, normally open
and switch is NC, normally closed using the ino without alteration. Both being momentary and not maintained.
Button sounds like it could be either normally open or closed but momentary and not maintained.
Switch sounds like it could be either normally open or closed and maintained.
The terminology button, switch is not the best I agree.
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I have a 9220 which im trying to troubleshoot. Before I had fitted the encoder terminator I would get a steering input ssu error and it would limit to a maximum of 13th gear and no diff lock. Now I have fitted the encoder terminator I have no warning lights but after a couple of hours it derated the transmission again. Any ideas weather this is a jd vs aog steering problem or is my powershift starting to go?
Have you tried to make a Y - connection to let the encoder connected?
So it did store a code. I cleared the tranny one and its been fine allday. I’m thinking I might check the voltage at the terminator on the factory was harnes. Tractor might think it’s turning hard and won’t engage diff lock.
Smudger24 did you ever get anywhere with aog and your green star ready tractor? I’ve have a 6175r that’s greenstar ready and would like to be able to use the Was and the fema steering valve that’s already there
any chance you still have this schematic around? the images arnt showing up, im guessing since its such an old post? I have an 8320 autotrac ready as well and have played with steering it via pwm but gotten error codes and would like to know what size resistor and where to place it.
Resistors would not stop the errors, you have to connect dummy-solenoids with the right resistance.
It worked in a 9220. I don’t have the diff lock functioning now though, think i need to play with the resistance incase it thinks the tractor is steering hard left or right
Has anyone worked further to get AOG on a steer ready JD? I bought a 2012 S670 combine. It includes the armrest GS3 2630 display but I opted out of the $2500 SF3000 receiver and the $2500 AutoTrac unlock, that could pay for a few AOG installations!
I have not investigated how to connect to the steering valve or whether it has a factory WAS. I’m hoping/expecting yield mapping will still work with external nmea input but I can’t confirm that yet. Can bus integration would be really cool!
What’s the best resource for electrical schematics? How could I help with developing a AOG-JD can bus bridge?
I know that for some models and for some gps brands ( trimble, topcon…) it is possible to steer an autosteer ready JD. I read that steer commands are ISO but it is needed an authentication step, JD gives a password for each gps brand, and it is not very expensive. I didnt find any more info of how authenticate and how is the procedure to get this password for a new brand like AOG. This is for steering via can-bus, of course, not for managing the coils and all this stuff.
I have AOG installed, using the original WAS, the Original Danfoss under-cab valve and the original steering wheel sensor.But nothing is CANBUS, connect everything directly and it works fine.
Nobody has done anything with the CAN and the SSU, which is under the cabin where all the connectors arrive and everything is managed.
If there is progress and we already know how the JD antenna works, what would be missing is to generate the NMEA to JD CanBus emulator and that would enable the Autotrack functions.
The person who did this is Torriem, you can consult him, I think he had it as a project, he has an AgraGPS antenna and with that he discovered all the messages.
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Great to hear!
Do you know what connectors the WAS, valve and encoder uses, or did you cut wires? It seems like it would be pretty easy to make up a standard loom for Autotrac machines that just sits in between all the relevant connections?
I have pulled out a couple of CANBUS messages, such as the WAS. But no further progress so far.