Fuel Pump Driver Module (FPM)

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

The Fuel Pump Driver Module (FPM) is located:

Behind the front left wheel arch on EU4/EU5 market vehicles
On the right wheel arch, behind the right rear seat bolster on EU6 and NAS market vehicles.

Operation of the fuel pump in the fuel tank mounted fuel pump module is regulated by the FPM which is controlled by the PCM. The FPM regulates the flow and pressure supplied by controlling the operation of the fuel pump using a Pulse Width Modulation (PWM) output.

The PWM signal from the PCM tells the FPM the required speed for the fuel pump. The on time of the PWM signal represents half the fuel pump speed. For example, if the PWM signal has an on time of 50 %, the FPM drives the pump at 100 %.

The FPM will only energize the fuel pump if it receives a valid PWM signal, with an on time of between 4 % and 50 %. To switch the fuel pump off, the PCM transmits a PWM signal with an on time of 75 %.

The PCM receives a monitoring signal from the FPM. Any Diagnostic DTC produced by the FPM are stored by the PCM. The DTC's can be retrieved from the PCM using an approved diagnostic system. The FPM itself cannot be interrogated by the approved diagnostic system.