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BMS NO CAN CTR error message

Hi I've got a BMS NO CAN CTR error message. Battery also reads 0% but i know it's charged. As a matter of fact I have two batteries, both charged but read 0% when inserted into jack. Pallet jack won't move front or back and won't lift. Only horn works.
Tried replacing control unit, same results. Any idea what it might be?
  • Posted 12 Jul 2024 02:23
  • By Pasha
  • joined 12 Jul'24 - 1 message
  • Massachusetts, United States
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Showing items 1 - 2 of 2 results.
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.
  • Posted 31 Jan 2025 09:18
  • By Darrell_Clint
  • joined 31 Jan'25 - 1 message
  • Wisconsin, United States
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We had same thing happen to ours, Just had our bourd replaced a month ago, did you ever figure anything out?
Thanks
  • Posted 25 Jan 2025 05:47
  • By Levi_Westendorp
  • joined 25 Jan'25 - 1 message
  • Michigan, United States
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