XC70 AWD L6-3.2L VIN 98 B6324S (2009)
The fuel pump consists of:
The function of the fuel pump is to ensure that the correct pressure and glow is maintained at the fuel rail on the request of the engine control module
(ECM).
The fuel pump is electrically powered via the Pump Electronic Module (PEM) with variable outputs to supply varying fuel pressure/flow and is
grounded in the body via the fuel pump control module.
The engine control module (ECM) has diagnostics for the fuel pump function to check for correct pressure and electrical open-circuits. The engine
control module (ECM) can also diagnose the fuel pump control module. Also see: Fuel pressure regulation, diagnostics See: Powertrain
Management/Computers and Control Systems/Description and Operation/Fuel Pressure Regulation, Diagnostics
The fuel pump can be activated and its status read off using the diagnostic tool.
