Fuel Pump Module (4/83) [2017-2022]: Description

The fuel pump module controls the fuel pump. The relayed power of the fuel pump module is controlled by the Central Electronic Module (CEM) when requested by the Engine Control Module (ECM).

The power supplied to the fuel pump is proportional to the 12 V PWM control signal from the Engine Control Module (ECM). The typical frequency of the PWM output signal to the fuel pump is 16 kHz ± 1 %.

The conversion from the PWM signal to the mechanical output of the pump has a linear range between a duty cycle of 18 % and about 1300 r/min to a duty cycle of 77 % and about 7100 r/min.