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


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 Press ...
Specification
ltemSpecificationSupply Voltage (V)8~18Supply Current (A)Max. 10Fuel Pressure (kpa)Starting600Drive350 ~ 500Stop20 Under
...
Other information:
Replacement
1.
Turn the ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the canister assembly.
(Refer to Evaporative Emission Control System - "Canister")
3.
Loosen the installing bolt (A).
4.
Remove the fuel tank air filter after disconnecting the vap ...
Inspection
1.
Check for resistance between terminals in each switch position(LH).
[Audio]
SwitchConnectorterminalResistance(±5%)Speech Recognition6~818.81k?SEEK UP6~84.51k?SEEK DN6~82.11k?Mode6~86.71k?SEND6~8430?END6~81.11k?MUTE1~80VOL UP2~3-VOL DN2~3-
2.
Check for resistance between te ...