As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3377 AT START OF TAKEOFF ROLL CREW REPORTED BRAKE ON LIGHT ILLUMINATED FOLLOWED BY MASTER WARNING & CONFIG ILLUMINATED ON EICAS. PERFORMED LOW SPEED ABORT NO UNUSUAL BRAKE PROBLEMS & BRAKE LIGHT ON, STAYS ILLUMINATED REGARDLESS OF BRAKE HANDLE POSITION. NO VOICE FOR TAKEOFF BRAKES HEARD. THE ACFT WAS REMOVED FROM SERVICE. R & R THE EMERGENCY PARKING BRAKE PRESS SWITCH IAW 32-44 07. R & R THE PRESS SWITCH CONNECTOR IAW SWPM 20-13-07, OPERATIONS TESTED GOOD.