Subaru 42021AG11A Fuel Pump Assembly

Disconnect the negative battery terminal and relieve fuel pressure. Remove the rear seat cushion and fuel pump access cover screws. Disconnect the electrical connector and fuel supply line from the fuel pump module. Remove the fuel pump cover and carefully extract the fuel pump module, protecting the fuel level sensor float arm. Remove and inspect the seal ring, replacing if deteriorated. For turbo models, remove the right rear carpet trim or quarter trim panel, disconnect the Fuel Pump Driver Module electrical connector, remove the fastener and Fuel Pump Driver Module. Reverse steps for installation.

After removing the fuel pump relay, you should check for battery voltage to the fuel pump relay connector.

To access the fuel pump/sending unit, you need to remove the rear seat and the rear floor mat. Then, remove the access plate screws and lift the plate from the body floor pan.

By using a screwdriver to release the locking pawls and then disconnecting the fuel level sending unit ground wire and electrical connectors.