i-350 L5-3.5L (2006)
Malfunction Indicator Lamp: Testing and Inspection
Malfunction Indicator Lamp (MIL) Inoperative
MALFUNCTION INDICATOR LAMP (MIL) INOPERATIVE
CIRCUIT DESCRIPTION
Battery positive voltage is supplied to the malfunction indicator lamp (MIL) through a logic module in the instrument panel cluster (IPC). The
powertrain control module (PCM) turns the MIL ON by grounding the MIL control circuit. There should be a steady MIL with the ignition ON and
the engine OFF.
MIL FUNCTION
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The MIL informs the driver that a malfunction has occurred and the vehicle should be taken in for service as soon as possible.
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The MIL illuminates during a bulb test and a system test.
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A DTC will be stored if a MIL is requested by the PCM.
MIL ILLUMINATION
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The MIL will illuminate with ignition switch ON and the engine not running.
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The MIL will turn OFF when the engine is started.
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The MIL will remain ON if the self-diagnostic system has detected a malfunction.
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The MIL may turn OFF if the malfunction is not present.
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If the MIL is illuminated and then the engine stalls, the MIL will remain illuminated so long as the ignition switch is ON.
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If the MIL is not illuminated and the engine stalls, the MIL will not illuminate until the ignition switch is cycled OFF, then ON.
TEST DESCRIPTION