AutoCodes – Chevrolet – P0111 2014 Chevrolet Silverado

P0111 2014 Chevrolet Silverado Code - Intake Air Temperature Circuit Range/Performance Problem

Quick Answer

The Intake Air Temperature (IAT) sensor 1 is a variable resistor that changes the voltage on the Engine Control Module (ECM) supplied 5 V signal circuit. 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: P0111 2014 Chevrolet Silverado indicates Intake Air Temperature Circuit Range/Performance Problem.
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 446

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 May 16, 2022

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0111 2014 Chevrolet Silverado Description

The Intake Air Temperature (IAT) sensor 1 is a variable resistor that changes the voltage on the Engine Control Module (ECM) supplied 5 V signal circuit. The signal varies with inlet air temperature in the sensor bore and is displayed by the scan tool as °C (°F). The IAT sensor 2 and the humidity sensor share the same circuit. The IAT sensor 2 signal is displayed by the scan tool as Hertz (Hz) and °C (°F). The Diagnostic Trouble Code (DTC) will be set when the ECM determines the absolute difference between the IAT sensor 1 start-up temperature and the IAT sensor 2 start-up temperature is greater than 25°C (45°F).

OBDII Code P0111 2014 Chevrolet Silverado - Intake Air Temperature Circuit Range/Performance Problem - AutoCodes.com — P0111 2014 Chevrolet Silverado Code - Intake Air Temperature Circuit Range/Performance Problem

What does this mean?

What are the Possible Causes of the DTC P0111 2014 Chevrolet Silverado?

Faulty Intake Air Temperature (IAT) sensor
Intake Air Temperature sensor harness is open or shorted
Intake Air Temperature sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0111 2014 Chevrolet Silverado?

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

The Intake Air Temperature (IAT) sensor 1, IAT sensor 2, Humidity sensor, MAF sensor, and BARO pressure sensor are integrated within the Mass Air Flow / Multifunction Intake Air Sensor.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0111 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado Code

1. What does the OBDII code P0111 in a 2014 Chevrolet Silverado indicate?

The P0111 code indicates an issue with the Intake Air Temperature (IAT) sensor circuit, specifically a range/performance problem.

2. What are the common symptoms of the P0111 code in a 2014 Chevrolet Silverado?

Common symptoms of the P0111 code may include rough idling, decreased fuel efficiency, lack of power, or in some cases, the Check Engine Light may illuminate.

3. What are the possible causes of the P0111 code in a 2014 Chevrolet Silverado?

Possible causes of the P0111 code include a faulty IAT sensor, damaged wiring or connectors in the IAT circuit, or issues with the engine control module (ECM).

4. How can I diagnose the P0111 code in my 2014 Chevrolet Silverado?

Diagnosing the P0111 code involves checking the IAT sensor for proper resistance, inspecting the wiring and connectors for damage, and using a scan tool to monitor IAT sensor data.

5. Can I drive my 2014 Chevrolet Silverado with the P0111 code?

It is not recommended to drive your vehicle with the P0111 code as it can lead to poor engine performance and potential further damage if left unresolved.

6. How can I repair the P0111 code in my 2014 Chevrolet Silverado?

Repairing the P0111 code may involve replacing the faulty IAT sensor, repairing damaged wiring or connectors, or resetting the ECM after addressing any underlying issues.

7. Are there any DIY tips for fixing the P0111 code in a 2014 Chevrolet Silverado?

If you have experience with automotive repairs, you may attempt to replace the IAT sensor yourself following proper diagnostic procedures and using the right tools.

8. How much does it cost to fix the P0111 code in a 2014 Chevrolet Silverado?

The cost of fixing the P0111 code can vary depending on the extent of the issue, but it may range from around $100 to $300 for parts and labor.

9. Will the P0111 code reset itself after repairs in a 2014 Chevrolet Silverado?

After the necessary repairs are made and the underlying issue is resolved, you may need to use a scan tool to clear the code and reset the Check Engine Light in your 2014 Chevrolet Silverado.

10. How can I prevent the P0111 code from reoccurring in my 2014 Chevrolet Silverado?

To prevent the P0111 code from coming back, it is essential to perform regular maintenance on your vehicle, address any issues promptly, and ensure proper installation of components like the IAT sensor.