As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP ILLUMINATED ON MASTER CAUTION RESET ON RECALL. GROUNDED - YES. ACCOMPLISHED TEMP CONTROL BITE CK ON # 1 AND # 2 CONTROLLER. # 1 CONTROLLER TEST OK NO FAULTS. # 2 CONTROLLER SHOW FAULT FLT DECK TRIM VALVE ABLE TO RESET RAN BITE CK AGAIN NO FAULTS NOTED. ON RECALL NO CAB ZONE TEMP LIGHT ILLUM. REF B737-800 AMM 21-61-00.