Malfunction Indicator Light (Mil)

For most DTCs, the MIL will illuminate when a fault is detected on the second drive cycle. Only catalyst-damaging misfires, certain internal ECM failures and Controller Area Network (CAN) faults will illuminate the MIL when the fault is detected on the first drive cycle. In certain circumstances, the Message Center, located near speedometer, will display fault warning information simultaneously with the MIL, or when a fault is detected on the first drive cycle.