Description And Operation: Operation

WARNING: This page is about a different car, the 2022 Chrysler Voyager and 2022 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

An electric fuel pump is located within the fuel pump module. The electric fuel pump is a positive displacement, immersible pump with a permanent magnet electric motor capable of creating 860 kPa (125 psi) of operating pressure. The fuel pressure regulator limits fuel pressure to 400 kPa (58 psi).

The fuel level sensor sending unit is continually monitored by the Body Control Module (BCM), to determine the level of fuel in the tank. This information is available to other vehicle control modules via the Controller Area Network (CAN) data bus. Fuel level sensor diagnosis is conducted as part of the BCM circuitry. Refer to DIAGNOSTIC CODE INDEX .

The fuel gauge is controlled by the instrument cluster based upon cluster programming and a CAN bus input received from the BCM.