Hyundai Ioniq: Fuel Delivery System / Fuel Pump Control Module (FPCM). Description and operation

Hyundai Ioniq (AE) 2017-2024 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 fuel tank and controls the DC motor mounted inside the low pressure fuel pump.

The module compares instantaneous fuel pressure information measured by the fuel pressure sensor (FPS) with target fuel pressure information provided by the ECM and generates the desired target fuel pressure by controlling the fuel pump motor and regulating fuel flow rate in the low pressure fuel line between the low and high pressure fuel pumps.

Operation

1.	The ECM provides target fuel pressure information to the FPCM via CAN network.

The FPS provides the FPCM with actual pressure information of the low pressure fuel line between the low and high pressure fuel pumps, and the FPCM forwards the information to the ECM.Also, the FPCM diagnoses faults in the FPCM, fuel pump motor and FPS and then provides the diagnosis information to the ECM.

The FPCM compares the actual fuel pressure information measured by the FPS with the target fuel pressure information provided by the ECM and controls the voltage that is provided to the low pressure fuel pump motor.The FPCM keeps regulating fuel flow rate by controlling the low pressure fuel pump, depending on engine speed (rpm) and vehicle loads.

Accelerator Pedal. Repair procedures

Removal 1.Turn the ignition seitch OFF and disconnect the battery negative (-) cable. 2.Disconnect the accelerator position snesor connector (A).3.Remove the installation nut (A), and then remove the accelerator pedal module...

Fuel Pump Control Module (FPCM). Schematic diagrams

C..

Other information:

Hyundai Ioniq (AE) 2017-2024 Service Manual: Specifications

SpecificationsFuel Delivery System Items Specification Fuel TankCapacity45ℓ lit. (11.8 U.S.gal., 47.5 U.S.qt., 39.5 Imp.qt.)Fuel FilterTypePaper typeFuel PressureLow Pressure Fuel Line480 - 519 kPa (4...

Hyundai Ioniq (AE) 2017-2024 Service Manual: General safety information and caution

Safety PrecautionPrecautions To Take Before Servicing High Voltage System • Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric shock and electric leakage...