As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI - NOSE WHEEL STEERING CAUTION ILLUMINATED JUST AFTER TOUCHDOWN. AFTER STOP, RAN NOSE STEERING ABNORMAL PROCEDURE CHECK LIST AND WAS UNABLE TO RESOLVE THIS ISSUE. ELECTED TO BE TOWED TO GATE. PASSENGERS DISEMBARKED NORMALLY. MAINTENANCE REPLACED NOSE WHEEL STEERING ELECTRONIC CONTROL UNIT. OPERATIONAL AND TAXI CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.