The Big Joe I am working on when first started looking at it would not move and the battery would sometimes read 0% and sometimes read 100% and alarm code 6.4 was on the display. The more I worked on the jack it would only display NO BMS NO CAN CTR. I check the wires #30 and #31 and had no continuity in one of the wires. I replaced the wire harness 1125-520001-30 and fixed the problem. The wires I checked are red and yellow wires that are twisted together. The wiring harness that is in the handle does have a resistor in it and it reads 120 ohms. To check the harness I disconnected the main controller, battery, and accelerator. I did look at the old harness and the yellow wire is broken where the handle pivots about 6" from where it plugs in to the handle harness.
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