AutoCodes – Ford – P0111 2009 Ford Fusion

P0111 2009 Ford Fusion Code - Intake Air Temperature Sensor 1 Circuit Range/Performance Problem

Quick Answer

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted. 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: P0111 2009 Ford Fusion indicates Intake Air Temperature Sensor 1 Circuit Range/Performance Problem.
Common causes: Common causes include Dirty Air Filter, Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 2,371

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0111 2009 Ford Fusion Description

The Intake Air Temperature (IAT) sensor is built into Mass Air Flow (MAF) sensor. The sensor detects intake air temperature and transmits a signal to the Powertrain Control Module (PCM). The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle. It is used by the Powertrain Control Module to assist with the calculation of idle speed, fuel mixture, and spark advance. The Diagnostic Trouble Code (DTC) will set when the PCM detects an excessively low or high voltage from the sensor.

OBDII Code P0111 2009 Ford Fusion - Intake Air Temperature Sensor 1 Circuit Range/Performance Problem - AutoCodes.com — P0111 2009 Ford Fusion Code - Intake Air Temperature Sensor 1 Circuit Range/Performance Problem

What does this mean?

What are the Possible Causes of the DTC P0111 2009 Ford Fusion?

Dirty Air Filter
Faulty Intake Air Temperature (IAT) Sensor
Intake Air Temperature Sensor harness is open or shorted
Intake Air Temperature Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0111 2009 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 does this mean?

Code Tech Notes

Before replacing the Mass Air Flow (MAF) sensor, try replacing the air filter and cleaning the Mass Air Flow sensor with Mass Air Flow sensor cleaner. Reset code and drive the vehicle. If the code comes back, it may be necessary to replace the Mass Air Flow sensor.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0111 2009 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 P0111 2009 Ford Fusion code?

Need more information on how to fix the P0111 2009 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0111 2009 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

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 P0111 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P0111 on a 2009 Ford Fusion?

- Common symptoms include poor fuel efficiency, rough idling, engine stalling, and a possible decrease in overall engine performance.

2. What does the OBDII code P0111 for a 2009 Ford Fusion indicate?

- The code P0111 indicates an issue with the Intake Air Temperature Sensor 1 Circuit Range/Performance Problem.

3. What are the possible causes of OBDII code P0111 on a 2009 Ford Fusion?

- Possible causes include a faulty intake air temperature sensor, damaged wiring or connectors, or issues with the sensor's circuit.

4. How can I diagnose the Intake Air Temperature Sensor 1 Circuit Range/Performance Problem on my 2009 Ford Fusion?

- Use a multimeter to test the resistance of the intake air temperature sensor and inspect the wiring and connectors for any damage or corrosion.

5. Can I drive my 2009 Ford Fusion with the OBDII code P0111?

- It is not recommended to drive your vehicle with the P0111 code as it can lead to further engine problems and reduced performance.

6. How do I repair the Intake Air Temperature Sensor 1 Circuit Range/Performance Problem on my 2009 Ford Fusion?

- Repair involves replacing the faulty intake air temperature sensor and ensuring all wiring and connectors are in good condition.

7. Will resetting the OBDII code P0111 on my 2009 Ford Fusion fix the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the Intake Air Temperature Sensor problem.

8. How much does it cost to repair the OBDII code P0111 on a 2009 Ford Fusion?

- The cost of repair can vary depending on the extent of the issue, but replacing the intake air temperature sensor typically ranges from $100 to $200.

9. Can a DIY enthusiast fix the OBDII code P0111 on a 2009 Ford Fusion?

- Depending on your skill level, replacing the intake air temperature sensor can be a DIY project, but it is recommended to have basic automotive knowledge.

10. What is the importance of the Intake Air Temperature Sensor in a 2009 Ford Fusion?

- The Intake Air Temperature Sensor plays a crucial role in providing the engine control module with accurate temperature data to adjust fuel delivery and ignition timing for optimal performance.