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 AND WOULD NOT RESET W/ PUSH OF MASTER CAUTION RESET. RAN QRH PROCEDURE AND LIGHT EXTINGUISHED AFTER PUSHING TRIP RESET BUTTON. WORKED NORMALLY AFTER. GROUNDED - YES. PERFORMED PACK TEMP BIT TEST REF B737-900 FIM 21-62 TASK 801 LEFT PACK "THIS PACK TCV" LIGHT CAME ON, RESETS OK OPS CHECK NORMAL.