Description And Operation: Operation

WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.

The fuel pump in the fuel delivery module is supplied power via a fuel pump relay in the Rear Junction Box (RJB). The fuel pump relay is controlled by the Body Control Module/Gateway Module (BCM/GWM) assembly. The fuel pump relay is active when the ignition is in all power modes except for power mode 0 (off).

The PCM is connected to the BCM/GWM assembly to receive a 'wake-up' message. In the event of an accident, the Restraints Control Module (RCM) outputs a crash signal to the BCM/GWM assembly to disable the fuel pump relay.

Inside the fuel tank there are two fuel level sensors: 'A' and 'B', which output signals to the BCM/GWM assembly for fuel tank fuel level. This information is processed by the BCM/GWM assembly and passed to the instrument cluster to display the remaining fuel level and low fuel warning.