As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: LOW SPEED REJECTED TAKE OFF AT 30 KNOTS DUE TO TAKE OFF CONFIGURATION WARNING AT THRUST APPLICATION ASSOCIATED WITH ILLUMINATION OF THE OVERHEAD PROXIMITY SENSOR ELECTRONIC UNIT LIGHT. ACCOMPLISHED PROXIMITY SENSOR ELECTRONIC UNIT TEST, FOUND SPEED BRAKE FAULT. RESET SAME PER AMM 32-09-00. MESSAGE CLEARED.