AutoCodes – Ford – U0109 2006 Ford Fusion

U0109 2006 Ford Fusion Code - Lost Communication With Fuel Pump Control Module

Quick Answer

The Powertrain Control Module (PCM) monitors the Fuel Pump Monitor (FPM) circuit for the presence of a duty cycled signal. Common causes include Fuel pump monitor circuit open or short to ground, Fuel pump monitor circuit short to voltage, Damaged Inertia Fuel Shutoff (IFS) switch (if equipped). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U0109 2006 Ford Fusion indicates Lost Communication With Fuel Pump Control Module .
Common causes: Common causes include Fuel pump monitor circuit open or short to ground, Fuel pump monitor circuit short to voltage, Damaged Inertia Fuel Shutoff (IFS) switch (if equipped).
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,025

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 29, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0109 2006 Ford Fusion 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 2006 Ford Fusion - Lost Communication With Fuel Pump Control Module - AutoCodes.com — U0109 2006 Ford Fusion Code - Lost Communication With Fuel Pump Control Module

What does this mean?

What are the Possible Causes of the DTC U0109 2006 Ford Fusion?

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

How to Fix the DTC U0109 2006 Ford Fusion?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0109 2006 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the U0109 2006 Ford Fusion code?

Need more information on how to fix the U0109 2006 Ford Fusion code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U0109 2006 Ford Fusion Code

1. What does OBDII code U0109 on a 2006 Ford Fusion mean?

The code U0109 indicates a communication problem between the vehicle's ECM (Engine Control Module) and the Fuel Pump Control Module.

2. What are the common symptoms of U0109 in a 2006 Ford Fusion?

Common symptoms of U0109 include the vehicle stalling, rough idling, difficulty starting, and the fuel pump not functioning properly.

3. What are the possible causes of the U0109 code in a 2006 Ford Fusion?

Possible causes of the U0109 code include a faulty Fuel Pump Control Module, damaged wiring or connectors, a weak battery, or a problem with the ECM.

4. How can I diagnose the U0109 code on my 2006 Ford Fusion?

Diagnosis involves using a scan tool to retrieve the trouble code and inspecting the wiring, connectors, and modules related to the fuel pump control system.

5. Can I drive my 2006 Ford Fusion with the U0109 code?

It is not recommended to drive the vehicle with the U0109 code present, as it can lead to potential safety hazards and further damage to the fuel system.

6. How can I repair the U0109 code on my 2006 Ford Fusion?

Repairing the U0109 code involves addressing the underlying cause, which may include replacing the Fuel Pump Control Module, repairing damaged wiring, or reprogramming the ECM.

7. Are there any DIY tips for fixing the U0109 code on a 2006 Ford Fusion?

DIY tips include checking the connectors for corrosion, ensuring proper battery voltage, and consulting the vehicle's service manual for specific troubleshooting steps.

8. Is the U0109 code a common issue in 2006 Ford Fusion vehicles?

The U0109 code related to lost communication with the fuel pump control module is not extremely common but can occur due to various factors in a 2006 Ford Fusion.

9. Can a mechanic reset the U0109 code on a 2006 Ford Fusion?

A mechanic can reset the code after addressing the underlying issue causing the communication problem between the ECM and the Fuel Pump Control Module.

10. How much does it cost to repair the U0109 code on a 2006 Ford Fusion?

The cost of repairing the U0109 code can vary depending on the specific cause, parts needed, labor rates, and whether the repair is done at a dealership or an independent repair shop.