What was found
DURING CLIMB, EXPERIENCED A LT INBD BRAKE HOT MESSAGE. TEMP SHOWED A RISE AFTER TAKEOFF & CONTINUED TO RISE, POSTED RED X, LOSS OF SIGNAL. DUE TO UNKNOWN CONDITION OF ACTUAL BRAKE TEMP, DECIDED TO PERFORM UNSCHEDULED LANDING, CHECKLIST FOLLOWED, EMERGENCY DECLARED FOR PRIORITY, & LANDED WITHOUT INCIDENT. MX INSPECTED BRAKE & FOUND NO EVIDENCE OF OVERHEATING & DETERMINED INDICATION ISSUE ONLY. BRAKE TEMP INDICATION PLACED ON MEL & SUBSEQUENT FLT COMPLETED WITHOUT ISSUE. MX EVALUATION PERFORMED EXTENSIVE TROUBLESHOOTING OF COMPONENTS, WIRING, & CONNECTIONS. CONNECTOR 316A1J6 PINS 72 AND 73 FOUND SLIGHTLY LOOSE WITH SLIGHT FLUCTUATING RESISTANCE. CONNECTOR 316A1J6 RE-SEATED AND ALL SUBSEQUENT CHECKS GOOD.