Malfunction Indicator Lamp (MIL)

The MIL notifies the driver the PCM has confirmed an OBD emission related component or system concern. When this occurs, an OBD DTC sets.

• The MIL is located in the IPC and is the international standards organization (ISO) standard engine symbol.
• The MIL is illuminated with the ignition ON, engine OFF, until the engine is cranked for starting. The MIL will turn OFF after engine start if no concerns are present.
• The MIL may flash after 17 seconds with the ignition ON, engine OFF, unless the OBD inspection/maintenance (I/M) readiness indicators indicate all of the OBD monitors have completed since the last KAM reset or since the PCM DTCs have been cleared with a reset command from the scan tool.
• The MIL will remain illuminated after engine start if a confirmed emission related concern or an OBD DTC exists.
• If the MIL flashes at a steady rate, after engine start, a severe misfire condition may exist.
• The MIL will remain OFF with the ignition ON, engine OFF, if a MIL indicator or IPC concern is present.
• To turn OFF the MIL after a repair, a reset command from the scan tool must be sent, or 3 consecutive drive cycles must be completed without a concern.
• If the MIL flashes erratically, a low battery voltage concern may be present causing the PCM to reset during cranking.