As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJC FLIGHT NR 2404: ABORTED TAKEOFF, NR 2 AC GEN CAUTION LIGHT ILLUMINATED ON TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE. MAINTENANCE REMOVED AND REPLACED NR 2 AC GEN IAW HORIZON TASK CARD 6242101. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.