Hyundai Genesis (DH): Fuel Delivery System / Fuel Pump Control Module (FPCM) Description and Operation

Hyundai Genesis (DH) 2013-2016 Service Manual / Engine Control / Fuel System / Fuel Delivery System / Fuel Pump Control Module (FPCM) Description and Operation

Description
The fuel pump control module (FPCM) is installed on the right side of the trunk compartment. It controls the BLDC (Brushless DC) motor mounted inside the variable low pressure fuel pump. This module compares the target fuel pressure data received from the ECM to the current fuel pressure measured by the fuel pressure sensor (FPS) and, based on the data from the FPS, controls the 3-phase duty function of the low pressure fuel pump to generate the target pressure.

Operation

1.
The ECM receives the target fuel pressure signal through CAN communication with the FPCM.
2.
The FPS applies the current low fuel pressure value to the FPCM.
3.
The FPCM controls the 3-phase duty function of the low pressure fuel pump.
4.
The FPS applies the current low fuel pressure value to the FPCM.
5.
It controls the low pressure fuel pump based on the RPM and vehicle load to provide a consistent flow rate.

    Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Release the residual pressure in fuel line. (Refer to Fuel Delivery System -"Release Residual Pressure in Fuel Line")    

    Specification ltemSpecificationSupply Voltage (V)8~18Supply Current (A)Max. 10Fuel Pressure (kpa)Starting600Drive350 ~ 500Stop20  Under

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