U0109 FORD - Lost Communication With Fuel Pump Control Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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U0109 FORD Possible 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

First diagnose U0109 FORD code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

U0109 FORD Tech Notes

There is a factory service bulletin for the following Ford models:

2012-2016 Ford F-Super Duty
2012-2016 Ford F-Super Duty Factory Service Bulletin

Cost of diagnosing the U0109 FORD code

    Labor: 1.0

    The cost of diagnosing the U0109 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

U0109 FORD Possible Symptoms

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

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 More Information

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U0109 FORD Comments

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