As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT "SMOKE TOILET" CAUTION MESSAGE, F/A REPORTED SMOKE (FLT 6269). INSPECTED LAV AND COMPONENTS COULD NOT FIND ANY DEFECTS. RAN BOTH ENGINES AND PRESSURIZED AIRCRAFT WITH ENGINE BLEEDS, NO SMOKE OR SMOKE SMELL NOTED ANYWHERE IN CABIN.