Fuel Pump Control Unit: Description and Operation

Fuel Supply, Low-pressure Side

Control unit for electric fuel pump

Operating principle







The control unit of the electric fuel pump is installed at the rear above the right side of the fuel tank (access via the wheel housing liner at the rear right). It is used for stepless control of the electric fuel pump. This control unit receives the setpoint speed for the fuel pump from the DME control unit via a bidirectional PWM interface and feeds back diagnosis information.