F 350 4WD Super Duty V10-6.8L (2002)
Fuel Pump Control Unit: Description and Operation
Fuel Pump Driver Module Applications
Fuel 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.
