TSBs

Replacing Genesis fuel pump control module

Nov. 19, 2024

This bulletin applies to 2019-2020 Genesis vehicles, where DTC U0109/U010900 is stored and there is a communication error with the fuel pump control module (FPCM).

Motor Age Staff

Related To: Mitchell 1

The fuel pressure sensor output should be 5V.

This bulletin applies to 2019-2020 Genesis vehicles, where DTC U0109/U010900 is stored and there is a communication error with the fuel pump control module (FPCM).

1. Connect GDS to the data link connector.

2. If there are any FPCM DTC related codes, replace the FPCM.

3. Using a voltmeter, check the fuel pressure sensor (FPS) output voltage, Specified voltage is 5V.

4. Check FPS output voltage at idle. Specified idle voltage is 1.4-3.2V.

5. Test fuel pressure at the delivery line from the fuel tank. If FPCM is out of spec, replace the FPCM.

Note the location of the FPCM connector (A) and mounting nuts (B).

To replace the FPCM, turn ignition off and disconnect the battery negative cable. Remove the trunk rear transverse trim. Fold the LH luggage side trim to access the FPCM.

Disconnect the FPCM connector and mounting nuts and remove the FPCM. Install the new FPCM in reverse order.

About the Author

Motor Age Staff

Motor Age has been publishing technical content for professional automotive technicians since 1899. Our writers have decades of experience and scores of ASE certifications, and they continue to teach new generations of technicians via classrooms all around the globe, as well as through the books and training manuals they've authored.