What was found
ON FLIGHT 4043 (YYZ TO JFK) AFTER TAKEOFF "STEERING INOPERABLE" CAUTION MESSAGE FOLLOWED BY "WOW INPUT" CAUTION. NOSE WHEEL STEERING WOULD NOT RE-ENGAGE WITH QRH. MESSAGES PERSISTED EN ROUTE UNTIL GEAR WAS LOWERED ON APROACH INTO JFK. AFTER LANDING, NOSE WHEEL STEERING WAS ARMED SUCCESSFULLY AND A NORMAL TAXI TO GATE. FOUND LOOSE CONNECTIONS ALONG THE STEERING HARNESS ASSEMBLY (LT SIDE) & WOW NR 1 HARNESS ASSEMBLY. SECURED ALL CONNECTORS & SAFETY WIRED IAW AMM 32-61-25. OPERATIONAL TEST OF THE NOSEWHEEL STEERING SYSTEM & PROXIMITY SENSOR SYSTEM GOOD.