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U0109 — Lost Communication with Fuel Pump Control Module

Communication lost with the fuel pump module.

Severity: HighRepair: $100-$500Difficulty: Medium

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Common symptoms of U0109

Common causes of U0109

Repair cost & difficulty

Typical cost to fix U0109: $100-$500 · Difficulty: Medium

Pro tip: On Ford, the FPDM is often under the spare tire area and susceptible to water damage.

Vehicles commonly affected

Ford (FPDM), GM, Chrysler

Related trouble codes

U0100P1233

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.