Fuel Pump Driver Module
WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.
The fuel pump driver module (FPDM) controls the speed of the fuel pump to match the fuel demand of the engine. The fuel pump driver module (FPDM) is installed in the right-hand (RH) end of the evaporative emission canister.
The pump speed required is calculated by the engine control module (ECM) and transmitted to the fuel pump driver module (FPDM) in a pulse width modulation (PWM) signal.