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U0109 Ford Code - Lost Communication With Fuel Pump Control Module

- Code Popularity: 43,254 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC U0109 Ford?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Fuel pump monitor circuit open or short to ground
  • Fuel pump monitor circuit short to voltage
  • Damaged Inertia Fuel Shutoff (IFS) switch (if equipped)
  • Damaged fuel pump control module relay
⚠ Does your Ford have Safety Recalls? → Check here

How to Fix the DTC U0109 Ford?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

There is a Factory Service Bulletin for the 2012-2016 Ford F-Super Duty:
2012-2016 Ford F-Super Duty Factory Service Bulletin OBDII Code U0109

Search for U0109 Ford Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0109 Ford code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code U0109 Ford Description

The Powertrain Control Module (PCM) monitors the Fuel Pump Monitor (FPM) circuit for the presence of a duty cycled signal. If the FPM circuit is fixed at a low or high voltage, the PCM begins to increment a counter. The test fails when the PCM is still not detecting a duty cycled signal on the FPM circuit after a calibrated amount of time.

OBDII Code U0109 Ford - Lost Communication With Fuel Pump Control Module  - AutoCodes.com
U0109 Ford Code - Lost Communication With Fuel Pump Control Module

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Code U0109 Ford comments

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