What was found
DURING LANDING ROLL OUT #2 ENGINE CONTROL LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED B737-800 FIM 73-06 TASK 801. EEC BITE PROCEDURE PROVIDED FAULT CODE 73-21392. EEC TEST FAILED. PERFORMED FIM 73-22 TASK 807 SINGLE CHANNEL FAULT. REMOVED AND REPLACED EEC #2 PER B737-800 AMM 73-21-60. PERFORMED EEC TEST. TEST FAILED, FAIL MESSAGE 73-31322, ENG ID PLUG SIGNAL OUT OF RANGE. REMOVED AND REPLACED ID PLUG ON #2 ENGINE EEC REF AMM 73-21-61. CONFIGURED PLUG AND PERFORMED EEC OPS CHECKS REF AMM 73-21-61 AND 73-21-60. OPS CHECKS GOOD.