Mode I

This is normal operating mode. In this mode, Malfunction Indicator Light (MIL) and Red LED inspection light in ECM stay on when ignition is turned on, engine off (bulb check). If engine is started, MIL and Red LED in ECM should turn off, unless a fault or trouble code is present (California) or if ECM or camshaft/crankshaft position sensor is malfunctioning (California and Federal).