Malfunction Indicator Lamp (MIL)
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
The malfunction indicator lamp (MIL) informs the driver that the PCM has detected an OBD emission-related component or system fault. When this occurs on a California calibrated engine, an OBD DTC will be set. On a federal calibrated engine and transmission, certain faults will also illuminate the MIL.
- On all vehicles, the MIL is located in the instrument cluster.
- The indicator is illuminated by a PCM message sent through the standard corporate protocol (SCP) communications network to the instrument cluster.
- An engine or transmission with federal calibration operating in the failure mode effects management (FMEM) will cause the MIL to be illuminated.
- To turn off the MIL after a repair, a clear DTCs command from the scan tool must be sent to the PCM.
- For any MIL concern, go to SYMPTOM CHARTS - 6.0L DIESEL .