What was found
DURING THE TAKEOFF ROLL, A NO TAKEOFF MESSAGE APPEARED. ABORTED TAKEOFF, A-PITCH ROLL DISCONNECT MESSAGE CAME ON, ONCE CLEAR OF THE RUNWAY ALL SYSTEMS CHECKED NORMAL. GAINED ACCESS TO PITCH/ROLL DISCONNECT, FOUND DATA LOADER HARNESS INTERFERING BY PITCH/ROLL DISCONNECT PROXIMITY SWITCH. REROUTED DATA LOADER HARNESS, ALSO CHECK PROXIMITY SWITCH CLEARANCE IAW CESSNA 750 MAINTENANCE MANUAL CHAPTER 27-10-00, OPERATIONAL CHECKS SATISFACTORY.