What was found
(CAN) APU FAILS TO START, NO ROTATION. AIRCRAFT RELEASED PER MEL 49-00-01. BLEED AIR VALVE CONFIRMED CLOSED. CHECKED CURRENT LIMITER AND FOUND SERVICEABLE. RERACKED ECU, NO FIX. AIRCRAFT REQUIRED TO HAVE A JET START AND GPU AT ALL STATIONS. FURTHER TROUBLE SHOOTING REVEALED A DAMAGED TERMINAL LUG ON STATER HARNESS, MOST PROBABLY DUE TO THE FACT THAT THE NUTS SECURING THE TERMINAL BECAME LOOSE AND CREATED AN OVERHEAT AT THAT POINT. APU STARTER HARNESS ASSY WAS REPLACED AND APU OPERATIONAL CHECK CARRIED OUT PER AMM 49-41-04.