[ME-081] During the ECU TEST procedure in the DA-42 'Before Take-Off Checklist', what action is performed and what is observed? (Ref: SOP Page 20)
A) Set power levers to MAX and switch VOTER switches to B
B) Set power levers to 50% LOAD and press only the left ECU TEST button for 2 seconds
C) With power levers at IDLE, hold both ECU TEST buttons; L/R ECU A and B fail cautions illuminate, RPM increases, propeller cycles pitch, and returns to idle
D) Cycle Engine Master switches OFF and ON sequentially to check RPM drop
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Correct Answer: C) With power levers at IDLE, hold both ECU TEST buttons; L/R ECU A and B fail cautions illuminate, RPM increases, propeller cycles pitch, and returns to idle