Volvo Workshop Manuals
XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Fuel Delivery and Air Induction > Fuel Pump Control Unit > Component Information > Description and Operation > Page 723
4. Fuel filter, cannot be replaced separately
The fuel pump is supplied with battery voltage by the fuel pump control module and is grounded in the car body.
The engine control module (ECM) has diagnostics for the fuel pump function to ensure that the pressure is correct. Also see Fuel pressure regulation,
The fuel pump can be activated and its status read off using VADIS/VIDA.
The pressure in the fuel rail can be measured by connecting a manometer to a nipple. This nipple is on the right-hand end of the fuel rail.
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