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P0112 2017 Ford F150 Code - Intake Air Temperature Sensor 1 Circuit Low Input

Quick Answer

The P0112 diagnostic trouble code (DTC) for a 2017 Ford F150 indicates a problem with the Intake Air Temperature (IAT) Sensor 1 Circuit, specifically a low input. Common causes include Faulty IAT Sensor: The most common cause of this code is a defective or failed IAT sensor, Wiring Issues: Damaged or corroded wiring connecting the IAT sensor to the ECM can also trigger this code, Poor Electrical Connection: Loose or poor electrical connections at the IAT sensor or ECM can lead to low input readings. 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 2017 Ford F150 indicates Intake Air Temperature Sensor 1 Circuit Low Input.
Common causes
Common causes include Faulty IAT Sensor: The most common cause of this code is a defective or failed IAT sensor, Wiring Issues: Damaged or corroded wiring connecting the IAT sensor to the ECM can also trigger this code, Poor Electrical Connection: Loose or poor electrical connections at the IAT sensor or ECM can lead to low input readings.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0112 2017 Ford F150 Description

The P0112 diagnostic trouble code (DTC) for a 2017 Ford F150 indicates a problem with the Intake Air Temperature (IAT) Sensor 1 Circuit, specifically a low input. The IAT sensor is a crucial component of the vehicle's engine management system, as it measures the temperature of the air entering the engine. This information is used by the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion and performance.

OBDII Code P0112 2017 Ford F150 - Intake Air Temperature Sensor 1 Circuit Low Input
P0112 2017 Ford F150 Code - Intake Air Temperature Sensor 1 Circuit Low Input

Common Causes of P0112 2017 Ford F150

  1. Faulty IAT Sensor: The most common cause of this code is a defective or failed IAT sensor.
  2. Wiring Issues: Damaged or corroded wiring connecting the IAT sensor to the ECM can also trigger this code.
  3. Poor Electrical Connection: Loose or poor electrical connections at the IAT sensor or ECM can lead to low input readings.
  4. Intake Air Leaks: Any leaks in the intake system can affect the IAT sensor readings, causing erroneous low input signals.
  5. ECM Malfunction: In rare cases, a malfunctioning ECM can incorrectly interpret the IAT sensor data, triggering this code.

Symptoms of P0112 2017 Ford F150

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Poor Fuel Efficiency: A faulty IAT sensor can lead to incorrect fuel mixture adjustments, resulting in decreased fuel efficiency.
  3. Rough Idling: The engine may experience rough idling or stalling due to incorrect air-fuel mixture.
  4. Engine Misfires: Incorrect air-fuel mixture can also cause engine misfires, leading to a lack of power and performance.
  5. Emission Issues: A malfunctioning IAT sensor can cause increased emissions due to improper combustion.

How to Fix P0112 2017 Ford F150

  1. Diagnostic Check: Begin by performing a thorough diagnostic check to confirm the P0112 code and identify the specific cause of the low input signal.
  2. Replace IAT Sensor: If the sensor is found to be faulty, replace it with a new, OEM-quality sensor to ensure accurate temperature readings.
  3. Check Wiring: Inspect the wiring harness for any damage or corrosion, and repair or replace as needed.
  4. Verify Electrical Connections: Ensure all electrical connections at the IAT sensor and ECM are secure and free of corrosion.
  5. Clear Codes and Test Drive: After completing the repairs, clear the DTC from the ECM memory, and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0112 2017 Ford F150

The typical repair costs for addressing a P0112 code on a 2017 Ford F150 can vary depending on the specific cause of the issue. In general, the cost of a new IAT sensor ranges from $20 to $50, while labor costs for diagnosis and replacement can range from $80 to $150 per hour. Overall, the total repair cost for this issue may range from $100 to $300, including parts and labor.

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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 2017 Ford F150 Code

1. What are the common symptoms of OBDII code P0112 on a 2017 Ford F150?

The common symptoms of OBDII code P0112 on a 2017 Ford F150 include poor engine performance, decreased fuel efficiency, and potential stalling or rough idling.

2. What does the OBDII code P0112 for a 2017 Ford F150 indicate?

OBDII code P0112 for a 2017 Ford F150 indicates a low input signal from the Intake Air Temperature (IAT) Sensor 1 circuit.

3. What are the possible causes of OBDII code P0112 on a 2017 Ford F150?

Possible causes of OBDII code P0112 on a 2017 Ford F150 include a faulty Intake Air Temperature (IAT) sensor, damaged sensor wiring, or a poor electrical connection.

4. How can I diagnose the Intake Air Temperature (IAT) sensor on a 2017 Ford F150?

To diagnose the Intake Air Temperature (IAT) sensor on a 2017 Ford F150, you can use a multimeter to test the sensor's resistance and check for any wiring or connector issues.

5. Can a dirty air filter trigger OBDII code P0112 on a 2017 Ford F150?

Yes, a dirty air filter can disrupt the airflow to the Intake Air Temperature (IAT) sensor and potentially trigger OBDII code P0112 on a 2017 Ford F150.

6. How can I repair OBDII code P0112 on a 2017 Ford F150?

To repair OBDII code P0112 on a 2017 Ford F150, you may need to replace the Intake Air Temperature (IAT) sensor, repair any damaged wiring, or clean the sensor connector.

7. Is it safe to continue driving with OBDII code P0112 on a 2017 Ford F150?

It is not recommended to continue driving with OBDII code P0112 on a 2017 Ford F150 as it can lead to poor engine performance and potential long-term damage if left unresolved.

8. How much does it cost to fix OBDII code P0112 on a 2017 Ford F150?

The cost to fix OBDII code P0112 on a 2017 Ford F150 can vary depending on the root cause of the issue, but it may involve sensor replacement or wiring repairs which could range from $50 to $200 or more.

9. Can a DIY enthusiast address OBDII code P0112 on a 2017 Ford F150?

A DIY enthusiast with automotive repair knowledge and tools can attempt to address OBDII code P0112 on a 2017 Ford F150 by following diagnostic procedures and potential repair steps.

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