As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON PILOTS WALK AROUND, IT WAS NOTED THAT MOST OF THE ELECTRICS HAS FAILED. FURTHER INVESTIGATION FOUND THAT THE J1/J2 CONNECTOR HAD STARTED TO BURN/MELT. IT WAS FOUND BY SHAKING THE DIFFERENT WIRING BUNDLES. WE REPLACED THE CONNECTOR AND RELEASED THE ACFT.