As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED WOW INPUT INOPERATIVE CAUTION MESSAGE ON INITIAL TAKEOFF ROLL AND NOSE WHEEL STEERING INOPERATIVE. CREW REJECTED TAKEOFF AND RETURNED TO GATE. MX TROUBLESHOT, R & R PSEU (PROXIMITY SENSOR ELECTRONIC UNIT) AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.