Hyundai Equus: Fuel Pump Control Module (FPCM) Description and Operation
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Engine Control/Fuel System / Fuel Delivery System / Fuel Pump Control Module (FPCM) Description and Operation
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 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. |
Over Pressure Valve (OPV) Repair procedures
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 Pressu ...
Fuel Pump Control Module (FPCM) Specifications
Specification
ltemSpecificationSupply Voltage (V)8~18Supply Current (A)Max. 10Fuel Pressure (kpa)Starting600Drive350 ~ 500Stop20 Under
...
See also:
Pre-active Seat Belt (PSB) Schematic Diagrams
Circuit Diagram
...
Center Fascia Panel Repair procedures
Replacement
[Center Fascia Upper Panel]
•
Put on gloves to protect your hands.
•
When prying with a flat-tip screwdriver, wrap it with
pr ...
Rocking the vehicle
If it is necessary to rock the vehicle to free it from snow, sand, or mud, first
turn the steering wheel right and left to clear the area around your front wheels.
Then, shift back and forth betwe ...
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