What was found
LEFT FLIGHT DECK CONT CAB/FLIGHT DECK CONTROL ZONE TEMP LIGHT ILLUMINATED ON RECALL. IT RESET WHEN MASTER CAUTION PUSHED. QRH 2.22 COMPLETE. GROUNDED - YES. ACCOMPLISHED BITE PROCEDURE FOR BOTH PACK TEMPERATURE CONTROLLERS PER B737-900 FIM 21-62 TASK 801, BOTH CONTROLLERS LOGGED FLIGHT DECK TRIM VALVE FAULT. C/W FIM 21-62 TASK 833 AND CIRCUIT BREAKER RESET PROCEDURE, FAULT CLEARED.