As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE TOILET CAUTION MSG DURING DESCENT. COMPLIED WITH QRH & PULLED CB`S 2C5, 2D14, 2D15, 2S2 & 2U2. MSG CLEARED ON SHORT FINAL, NO INDICATIONS OF FIRE. INSPECTED LAVATORY FOR EVIDENCE OF SMOKE & FIRE, NO EVIDENCE FOUND. R & R LAVATORY SMOKE DETECTOR IAW AMM 26-16-01. OPERATIONS CHECKED GOOD. ACFT OK FOR SERVICE.