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Fuel Pump Control Unit: Description and Operation
Fuel Pump Driver Module ApplicationsFuel Pump Driver Module Duty Cycle Signals:
The Fuel Pump Driver Module
(FPDM) communicates diagnostic information to the powertrain control module (PCM) through the Fuel Pump Monitor (FPM) circuit. This information is sent by the FPDM as a duty cycle signal. The three duty cycle signals that may be sent are listed in the table.
