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) Repair procedures
Removal
1.
Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
2.
Remove the safety belt (A) by turning it in the direction of arrow using a flat ...
Power Steering Motor Repair procedures
Replacement
1.
Remove the air cleaner (A).
2.
Loosen the nut and then remove the air filter (A).
3.
Remove the front bumper.
(Refer to Body - "Front Bumper")
4.
Remove the left head l ...
Compressor Description and Operation
Description
The compressor is the power unit of the A/C system.
It is located on the side of engine block and driven by a V-belt of the engine.
The compressor changes low pressure and low tempera ...
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