Parts for your 2005 Toyota Prius-Fuel pump

2005 Toyota Prius Fuel Pump — What It Does and How to Look After It

According to technical sources including the Toyota Repair Manual for the 2004–2009 Prius (SFI/Fuel System sections), the Toyota Electrical Wiring Diagram (EWD) for 2005 Prius, and the Toyota New Car Features manual, the 2005 Toyota Prius is definitely fitted with an in‑tank electric fuel pump module. It’s part of the sequential multi‑port fuel injection system and is controlled by the engine ECU via the circuit opening relay. So a fuel pump is absolutely relevant on this hybrid — even though the car can move on electric power, the petrol engine still needs a steady, regulated fuel supply.

The pump’s job is straightforward but critical: draw petrol from the tank and deliver it at a constant, regulated pressure to the fuel rail and injectors. In the 2005 Prius, the pump, fuel filter/strainer, pressure regulator and level sender are packaged together in a module beneath the rear seat. The system is “returnless”, meaning pressure is regulated at the tank to reduce heat and evaporative emissions.

For servicing, Toyota doesn’t specify a routine replacement interval for the pump or in‑tank filter