U0109 2011 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 2011 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.
Code U0109 2011 Ford Fusion Description
What are the Possible Causes of the DTC U0109 2011 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 2011 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 2011 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.
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Frequently Asked Questions about U0109 2011 Ford Fusion Code
1. What does the OBDII code U0109 for a 2011 Ford Fusion mean?
The code U0109 indicates that there is a communication problem between the vehicle's ECM (Engine Control Module) and the Fuel Pump Control Module.
2. What are the common symptoms of the U0109 code in a 2011 Ford Fusion?
Common symptoms include issues with starting the vehicle, engine stalling, poor fuel economy, and the fuel pump not functioning properly.
3. What are some possible causes of the U0109 code in a 2011 Ford Fusion?
Possible causes of the U0109 code include faulty wiring or connectors, a malfunctioning Fuel Pump Control Module, a defective ECM, or a communication network issue.
4. How can I diagnose the U0109 code in my 2011 Ford Fusion?
Diagnosing the U0109 code usually involves checking the wiring and connectors for any damage or corrosion, testing the Fuel Pump Control Module, and using a diagnostic scan tool to communicate with the modules.
5. Can I still drive my 2011 Ford Fusion with the U0109 code present?
It is not recommended to drive your vehicle with the U0109 code unresolved, as it can lead to potential fuel pump issues and engine performance problems.
6. How can the U0109 code in a 2011 Ford Fusion be repaired?
Repairing the U0109 code typically involves addressing the underlying cause, which may include repairing or replacing damaged wiring, connectors, or modules, and ensuring proper communication between the ECM and Fuel Pump Control Module.
7. Is it necessary to reset the code after repairing the U0109 issue in a 2011 Ford Fusion?
Yes, it is recommended to clear the code using a diagnostic scan tool after resolving the U0109 problem to reset the Check Engine Light and ensure the issue has been successfully addressed.
8. Are there any preventive maintenance tips to avoid encountering the U0109 code in a 2011 Ford Fusion?
To prevent the U0109 code, it is advisable to regularly inspect the wiring and connectors in the communication network, perform routine vehicle maintenance, and address any electrical issues promptly.
9. Can a DIY enthusiast fix the U0109 code in a 2011 Ford Fusion?
While some basic diagnostic steps can be taken by a DIY enthusiast, resolving the U0109 code may require specialized tools and expertise, so it is recommended to consult a professional mechanic for accurate diagnosis and repair.
10. How much does it typically cost to repair the U0109 code in a 2011 Ford Fusion?
The cost of repairing the U0109 code can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor costs, and diagnostic fees, which could range from a few hundred to over a thousand dollars.
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