As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENGINE TEMPERATURE MONITOR PROBES ON THE ODD CYLINDER BANK REVERSED CAUSING THE INCORRECT CYLINDER DATA TO BE DISPLAYED TO PILOT. ALSO, FOUND MAIN POWER AND LIGHTING DIMMER POWER NOT CIRCUIT PROTECTED AND HARD WIRED TO ACFT MAIN BUSS.