As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ROLL SPOILER OTBD CAUTION LIGHT ILLUMINATED. ABORTED TAKEOFF AND RETURNED TO GATE. VERFIED SPOILERS INACTIVE, (SHUTOFF) REMOVED CONNECTOR FROM UNLOADING VALVE AND SPOILERS STILL SHUT OFF AND NO VOLTAGE TO SOLENOID WHEN SELECTED ON. SUSPECTED BAD UNLOADING VALVE. R & R UNLOAD SOLENOID VALVE NR2 IAW 27-14-21.