Malfunction Indicator Lamp: Description and Operation

MALFUNCTION INDICATOR LAMP (MIL)
Alerts driver to an OBD II emission-related component or system malfunction. MIL comes on in run/crank mode as a bulb check until PIP signal detected. MIL should turn off after PIP signal detected.

MIL remains on in the following conditions:
- A short to ground of MIL circuit
- Operation in HLOS
- When vehicle was last shut down
- After DTC is stored in memory MIL blinks in the following procedures:
- A severe misfire is detected
- Intermittent in MIL circuit

NOTE: If OBD II related component or system is malfunctioning, OBD II DTC will be set. To extinguish MIL after repair, a reset command from scan tool or NGS must be sent, or three consecutive drive cycles must be completed without a malfunction.