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| This just happened two weeks ago but our case 6140 was picking corn humming along, when the Pro700 said it lost communication with all 5 of the ecms at once. Wouldn’t let us move, unload, nothing. Was able to track it down to a bad yield sensor paddle in the clean grain elevator. It was drawing way more than its 5.5 volts. Turned out the sensor didn’t necessarily fail, but it had an internal short that ended up grounding out the entire can bus. New sensor and off we went. | |
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