As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AVIONICS BUSS 1 AND 2 CONTROL RELAYS FOUND TO BE WIRED INCORRECTLY FROM MANUFACTURE. WIRES FOR CONNECTION 85 WERE ON CONNECTION 86 AND WIRES FROM 86 WERE FOUND ON CONNECTION 85. RELAY INTERNAL DIODES WERE DAMAGED. WIRING CORRECTED AND RELAYS REPLACED.