As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A "FMC DISAGREE" WARNING IN BOTH CAPT'S AND F/O'S EHSI ON GRD WHILE TAXIING. TWO CIRCUIT BREAKERS WERE PULLED AND RESET (FMCS CMPTR 1 AND FMCS CMPTR 2 ) PER QRC CHECKLIST PROCEDURES. PULLING AND RESETTING CIRCUIT BREAKERS FIXED THE PROBLEM.