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Description The ECM consists of a microcomputer and connectors for signal On Board Diagnosis Logic Malfunction is detected when ... Check Items (Possible Cause) I ECM calculation function is malfunctioning. I ECM DTC Confirmation Procedure WITH CONSULT-II 1) Turn ignition switch “ON”. WITHOUT CONSULT-II 1) Turn ignition switch “ON” and wait at least 2 seconds. “ON”. 4) Perform “Diagnostic Test Mode II (Self-diagnostic results)” with ECM. 5) If DTC is detected, go to “Diagnostic Procedure”, EC-122. SEC220B SEF817Y DTC 0301 ECM 2, DTC 0901 ECM 12 ZD30DDTi EC-121 |