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South Florida | Check the ISO implement connector at the back of the tractor for dirt/corrosion. If you have a similar tractor with the Trimble #56850 cable you can swap the cable just to make sure that's not the problem. If you don't have a spare cable you can check voltages on Trimble #56850 cable Pins 2 & 4 (Brown wire to ground & Green wire to ground) both should be around 2.5v with key switch on and Nav/FmX plugged in and turned on. If the voltages are low then it's a bad wire somewhere. They are tough to find sometimes. | |
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Challenger MT/FmX/Autopilot recurring fault...
