1. Perform the KOEO self-test. (See KOEO/KOER SELF TEST [SKYACTIV-G 2.5].)
2. Verify that a fuel pump control module related DTC is detected. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.5].)
If DTCs are detected, repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [SKYACTIV-G 2.5].)
If a DTC is not detected, go to the next step.
3. Inspect the following:
Fuel pump control module damage
Fuel pump control module connector damage or corrosion
If there is any malfunction, repair or replace the malfunctioning part.