As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. LIGHT EXTINGUISHED UPON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED BITE CK B737-900 FIM 21-62 TASK 801 LEFT CONTROLLER SHOWED FLIGHT DECK TRIM VALVE. FAULT TESTED AND CLEARED ON RESET. PER FIM TASK 21-62 TASK 833 FAULT CLEARED IS OK FOR SERVICE.