AutoCodes – Ford – P0111 2011 Ford Fusion

P0111 2011 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 2011 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.

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Code Popularity 3,147

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
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Code P0111 2011 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 2011 Ford Fusion - Intake Air Temperature Sensor 1 Circuit Range/Performance Problem - AutoCodes.com — P0111 2011 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 2011 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 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 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 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.

Need more information about the P0111 2011 Ford Fusion code?

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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 P0111 2011 Ford Fusion Code

1. What are common symptoms of the P0111 OBDII code on a 2011 Ford Fusion?

- Common symptoms include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.

2. What does the P0111 OBDII code indicate in a 2011 Ford Fusion?

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

3. What are the possible causes of the P0111 code on a 2011 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 P0111 code on my 2011 Ford Fusion?

- Diagnose the code by checking the intake air temperature sensor's wiring and connectors for damage, and testing the sensor's resistance and voltage output.

5. Can I continue driving my 2011 Ford Fusion with the P0111 code?

- It's not recommended to drive with the P0111 code as it can lead to poor engine performance and potential long-term damage.

6. How can I repair the P0111 code on my 2011 Ford Fusion?

- Repair options include replacing the intake air temperature sensor, repairing damaged wiring or connectors, or addressing any circuit issues.

7. Are there any DIY tips for fixing the P0111 code on a 2011 Ford Fusion?

- DIY tips include checking for loose or damaged wires, cleaning connectors, and ensuring the new sensor is properly installed and calibrated.

8. Will resetting the OBDII system clear the P0111 code on my 2011 Ford Fusion?

- Resetting the system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

9. How much does it typically cost to repair the P0111 code on a 2011 Ford Fusion?

- The cost of repairs can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Can a mechanic easily fix the P0111 code on a 2011 Ford Fusion?

- A qualified mechanic should be able to diagnose and repair the P0111 code efficiently, ensuring proper functioning of the intake air temperature sensor.