AutoCodes – Ford – P0112 2011 Ford Fusion

P0112 2011 Ford Fusion Code - Intake Air Temperature Sensor Circuit Low Input

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: P0112 2011 Ford Fusion indicates Intake Air Temperature Sensor Circuit Low Input.
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 2,400

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 P0112 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 voltage from the sensor.

OBDII Code P0112 2011 Ford Fusion - Intake Air Temperature Sensor Circuit Low Input - AutoCodes.com — P0112 2011 Ford Fusion Code - Intake Air Temperature Sensor Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 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 P0112 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 P0112 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 P0112 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 P0112 2011 Ford Fusion Code

1. What does OBDII code P0112 mean for a 2011 Ford Fusion?

This code indicates a problem with the Intake Air Temperature (IAT) sensor circuit, specifically a low input signal.

2. What are the common symptoms of P0112 in a 2011 Ford Fusion?

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

3. What are the possible causes of the Intake Air Temperature Sensor Circuit Low Input in a 2011 Ford Fusion?

Causes may include a faulty IAT sensor, damaged wiring or connectors, a disconnected sensor, or issues with the ECM (Engine Control Module).

4. How can I diagnose the P0112 code in my 2011 Ford Fusion?

To diagnose this code, you can use a scan tool to check for the specific trouble code, visually inspect the sensor and its connections, and test the sensor's resistance.

5. Can I drive my 2011 Ford Fusion with the P0112 code?

It is not recommended to drive a vehicle with the P0112 code as it can lead to further engine problems and potential safety hazards.

6. What is the repair process for fixing the Intake Air Temperature Sensor Circuit Low Input in a 2011 Ford Fusion?

The repair process typically involves replacing the faulty IAT sensor, repairing or replacing damaged wiring or connectors, and clearing the trouble code.

7. How much does it cost to fix the P0112 code in a 2011 Ford Fusion?

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

8. Can I reset the P0112 code in my 2011 Ford Fusion without fixing the issue?

While you can clear the trouble code using an OBDII scanner, the underlying problem causing the code will persist unless properly diagnosed and repaired.

9. Is the Intake Air Temperature Sensor Circuit Low Input a common issue in 2011 Ford Fusion vehicles?

While it's not the most common issue, problems with the IAT sensor circuit can occur in 2011 Ford Fusion models due to sensor wear or electrical issues.

10. How can I prevent the P0112 code from appearing in my 2011 Ford Fusion?

Regular maintenance, checking the sensor connections, and addressing any engine performance issues promptly can help prevent the recurrence of the P0112 trouble code.