Fuel Pump Control Module
The fuel pump is located in the fuel tank. The pump is regulated by the fuel pump control module. The central electronic module (CEM) controls a relay that supplies power to the fuel pump control module. The relay is directly connected on the central electronic module (CEM).
The central electronic module (CEM) communicates with the engine control module (ECM) via the CAN network in order to control the fuel pump. There is also a directly connected cable between the engine control module (ECM) and the fuel pump module. A pulsed signal for fuel pump control is transmitted on this cable.
The central electronic module (CEM) also communicates with the supplemental restraint system (SRS) module via the controller area network (CAN). In the event of a collision, the supplemental restraint system module (SRS) transmits data and the central electronic module (CEM) shuts off the power supply to the fuel pump (FP).