Had a similar issue. Bought the Can Doo pro so I could see what was happening. I had a module error with 4 codes. All came back to a low voltage issue. Unplugged everything, cleaned it and put it back together. Didn't solve it. After much digging the battery voltage dropped when the IBR was being used. It would still start my ski, but not enough Amps for the IBR. Replaced the battery, problem solved in my case.