As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG 2 EEC C1 SMT MESSAGE DISPLAYED. GROUNDED - YES. TROUBLESHOOT ENG 2 EEC C1 SMT PER B737-9 IFIM G73-20-00-810-856. ERASED MESSAGE. PERFORMED ENGINE IDLE SYSTEM TEST AND TEST PASSED REF IFIM G73-20-00-810-856. NO MESSAGE AFTER ENGINE ILDE TEST. OPS CHECK GOOD.