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 AFTER PUSHBACK. GROUNDED - YES. PERFORMED PZTC BITE FLIGHT DECK TRIM FAULT FOR #1 CONTROLLER. ACCOMPLISHED B737-800 FIM 21-62. RESET AND PERFORMED BITE TEST, NO FAULTS FOUND. #1 AND #2 CONTROLLER PZTC BITE TEST PASSED.