Fuel Fired Booster Heater Fuel Pump
WARNING: This page is about a different car, the 2018 Land Rover Range Rover and 2017 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
The Fuel Fired Booster Heater (FFBH) fuel pump is installed in a rubber mounting attached to a cross-member under the rear floor, above the fuel tank. The pump is a self priming, solenoid operated plunger pump. The Fuel Fired Booster Heater Control Module (FFBHCM) in the FFBH outputs a PWM (Pulse Width Modulation) signal to control the operation of the pump. When the pump is de-energized, it provides a positive shut-off of the fuel supply to the FFBH.