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Home › Jeep › 2019 › Renegade Trailhawk › Repair and Diagnosis › Engine Performance › System › 1.3L - DTCS P1E09 To U0121 › DTC Troubleshooting › U0109-Lost Communication With Fuel Pump Control Module › Default Action

Default Action

When this DTC is active, the FPCM will continue to run the Fuel Pump assembly at 80% duty cycle.
MIL light will illuminate.