U0109 2008 FORD FUSION - Lost Communication With Fuel Pump Control Module
U0109 2008 Ford Fusion DescriptionThe Powertrain Control Module (PCM) monitors the Fuel Pump Monitor (FPM) circuit for the presence of a duty cycled signal. If the FPM circuit is fixed at a low or high voltage, the PCM begins to increment a counter. The test fails when the PCM is still not detecting a duty cycled signal on the FPM circuit after a calibrated amount of time.
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