Fuel Pump

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2013 Volvo C70, 2012 Volvo C70, 2011 Volvo C70, 2010 Volvo C70, and 2009 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Fuel Pump

Courtesy of VOLVO CARS CORPORATION

The central electronic module (CEM) (4/56) receives a request from the engine control module (ECM) (4/46) via the control area network (CAN) to start the fuel pump (FP). The central electronic module (CEM) then activates the relay (2/23) which supplies the fuel pump unit (4/83) with power, which in turn powers the fuel pump (FP) (6/33).

If the controller area network (CAN) does not function the relay for the power supply to the fuel pump control module will not be activated.

In the event of a collision in which the airbags are deployed, a signal is transmitted from the supplemental restraint system (SRS) module (4/9) via the control area network (CAN) to the central electronic module (CEM). The central electronic module (CEM) deactivates the relay for the fuel pump unit.