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MI & Data Link Connectors Malfunction indicator (MI) circuit is monitored for open or short- Malfunction is detected when .... Check Items (Possible cause) ● MI circuit is open or shorted. ● Harness or connectors ● MI lamp ● ECM DIAGNOSTIC TROUBLE CONFIRMATION 1) Turn ignition switch to “ON” position and select “DATA 2) Start engine and run it for at least 2 seconds at idle -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- OR -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- OVERALL FUNCTION CHECK Turn ignition switch to “ON” position. 2) Check that MI lits on. TROUBLE DIAGNOSES 19 CD20T EC-141 |