AutoCodes – Ford – P0112 2019 Ford F150

P0112 2019 Ford F150 Code - Intake Air Temperature Sensor 1 Circuit Low Input

Quick Answer

The Intake Air Temperature (IAT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted, Intake Air Temperature Sensor circuit poor electrical connection. 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 2019 Ford F150 indicates Intake Air Temperature Sensor 1 Circuit Low Input.
Common causes: Common causes include Faulty Intake Air Temperature (IAT) Sensor, Intake Air Temperature Sensor harness is open or shorted, Intake Air Temperature Sensor circuit poor electrical connection.
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 253

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 Sep 22, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0112 2019 Ford F150 Description

The Intake Air Temperature (IAT) Sensor is a thermistor device in which resistance changes with temperature. The resistance of a thermistor decreases as the temperature increases, and the resistance increases as the temperature decreases. The varying resistance affects the voltage drop across the sensor pins and provides electrical signals to the Powertrain Control Module (PCM) corresponding to temperature.
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow. The voltage that is dropped across a fixed resistor in a series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The IAT sensor provides air temperature information to the PCM. The PCM uses the air temperature information as a correction factor in the calculation of fuel, spark, and airflow.
The IAT sensor provides a quicker temperature change response time than the Engine Coolant Temperature (ECT) or Cylinder Head Temperature (CHT) sensor.
Currently, there are 2 types of IAT sensors used, a stand-alone and an integrated type. Both types function the same, however, the integrated type is incorporated into the Mass Air Flow (MAF) Sensor, the Manifold Absolute Pressure and Temperature (MAPT) Sensor, or the Turbocharger Intake Pressure and Temperature (TCIPT) Sensor instead of being a stand-alone sensor.
This Diagnostic Trouble Code (DTC) will be set if the IAT Sensor signal is less than the self-test minimum.

OBDII Code P0112 2019 Ford F150 - Intake Air Temperature Sensor 1 Circuit Low Input - AutoCodes.com — P0112 2019 Ford F150 Code - Intake Air Temperature Sensor 1 Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0112 2019 Ford F150?

Faulty Intake Air Temperature (IAT) Sensor
Intake Air Temperature Sensor harness is open or shorted
Intake Air Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0112 2019 Ford F150?

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 P0112 2019 Ford F150 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 2019 Ford F150 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 2019 Ford F150 Code

1. What are the common symptoms of OBDII code P0112 on a 2019 Ford F150?

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

2. What does the Intake Air Temperature Sensor 1 Circuit Low Input error code (P0112) on a 2019 Ford F150 indicate?

- The error code P0112 indicates that the intake air temperature sensor is reporting a lower than expected voltage to the engine control module.

3. What are the possible causes of the P0112 code on a 2019 Ford F150?

- Possible causes include a faulty intake air temperature sensor, damaged wiring or connectors, a malfunctioning engine control module, or a problem with the sensor's ground connection.

4. How can I diagnose the cause of the P0112 code on my 2019 Ford F150?

- To diagnose the issue, you can use a multimeter to test the resistance and voltage output of the intake air temperature sensor, check the wiring for any damage, and inspect the connectors for corrosion.

5. Can I continue driving my 2019 Ford F150 with the P0112 code present?

- While the vehicle may still be operable, it is not recommended to drive with the P0112 code as it can lead to potential engine performance issues and decreased fuel efficiency.

6. How can I repair the Intake Air Temperature Sensor 1 Circuit Low Input error code on my 2019 Ford F150?

- The repair process involves replacing the faulty intake air temperature sensor, repairing any damaged wiring or connectors, and resetting the error code using an OBDII scanner.

7. Are there any simple troubleshooting tips for the P0112 code on a 2019 Ford F150?

- You can start by checking the sensor's wiring and connectors for any visible damage, ensuring a secure connection, and clearing the error code to see if it returns.

8. Is it possible to reset the P0112 code on a 2019 Ford F150 without making any repairs?

- While you can reset the error code using an OBDII scanner, it is recommended to diagnose and address the underlying issue to prevent the code from reoccurring.

9. How much does it typically cost to repair the P0112 code on a 2019 Ford F150?

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

10. Can a DIY enthusiast with basic automotive knowledge fix the P0112 code on a 2019 Ford F150?

- Yes, replacing the intake air temperature sensor and checking the related wiring can be a DIY-friendly repair for those with basic automotive knowledge and the right tools.