Model # E225FPXSSC
Serial # G04772782

Was out on the water Friday night and started heading back when the motor just died. No bang, clang, nothing. It was as if I reached up and turned the key off. After calling in favors to have someone tow me back in, I plugged up the laptop and it is showing codes 81-86. Did some reading and found that I either have a grounding problem, or the computer is shot. Does anyone have any suggestions?

Assuming it is the computer, is this something an average joe can replace himself?