Description |
Operation |
1. |
The ECM provides target fuel pressure information to the FPCM via CAN network. |
2. |
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. |
3. |
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. |
Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
On-vehicle Inpection
•
First of all, check for DTCs. If a DTC is present, perform
troubleshooting in accordance with the procedure for that DTC. (Refer to
DTC guide)
•
Check that the battery cables are connected to the correct termina ...
Hyundai Sonata LF 2014-2019 Service Manual: Rear Wheel Guard Repair procedures
Replacement
•
Put on gloves to protect your hands.
•
When prying with a flat-tip screwdriver or use a prying trim
tool, wrap it with protective tape, and apply protective tape around the
related parts, to prevent damage.
•
Ta ...