E 350 V8-6.0L DSL Turbo (2007)
Malfunction Indicator Lamp: Description and Operation
MALFUNCTION INDICATOR LAMP (MIL)
Malfunction Indicator Lamp (MIL)
The MIL informs the driver that the powertrain control module (PCM) has detected an OBD emission-related component or system concern. When this
occurs on a California-calibrated engine, an OBD diagnostic trouble code (DTC) is set. On a federal calibrated engine and transmission, certain concerns
also illuminate the MIL.
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On all vehicles, the MIL is located in the instrument cluster.
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The indicator is illuminated by a PCM message sent through the controller area network (CAN) to the instrument cluster.
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An engine or transmission with federal calibration operating in the failure mode effects management (FMEM) may cause the MIL to be
illuminated.
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To turn off the MIL after a repair, a clear DTCs command from the scan tool must be sent to the PCM.
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For any MIL concern, go to Symptom Charts, PCM Quick Test. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptom Charts/QT: Powertrain Control Module (PCM) Quick Test