Engine-CodesChevrolet – P0111 2017 Chevrolet Silverado

P0111 2017 Chevrolet Silverado Code - Intake Air Temperature Circuit Range/Performance Problem

Quick Answer

The P0111 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the Intake Air Temperature (IAT) sensor circuit. Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged wiring or connectors in the IAT circuit, Corrosion or contamination in the IAT sensor. 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 2017 Chevrolet Silverado indicates Intake Air Temperature Circuit Range/Performance Problem.
Common causes
Common causes include Faulty Intake Air Temperature (IAT) sensor, Damaged wiring or connectors in the IAT circuit, Corrosion or contamination in the IAT sensor.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P0111 2017 Chevrolet Silverado Description

The P0111 diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the Intake Air Temperature (IAT) sensor circuit. The IAT sensor is responsible for measuring the temperature of the air entering the engine. This information is crucial for the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. When the ECM detects that the IAT sensor's signal is out of the expected range or performance, it triggers the P0111 code.

OBDII Code P0111 2017 Chevrolet Silverado - Intake Air Temperature Circuit Range/Performance Problem
P0111 2017 Chevrolet Silverado Code - Intake Air Temperature Circuit Range/Performance Problem

Common Causes of P0111 2017 Chevrolet Silverado

  1. Faulty Intake Air Temperature (IAT) sensor
  2. Damaged wiring or connectors in the IAT circuit
  3. Corrosion or contamination in the IAT sensor
  4. ECM software issue
  5. Intake air leaks near the sensor

Symptoms of P0111 2017 Chevrolet Silverado

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Hesitation or lack of power during acceleration
  4. Check Engine Light illuminated
  5. Increased emissions

How to Fix P0111 2017 Chevrolet Silverado

  1. Begin by locating the IAT sensor in the intake air duct or manifold.
  2. Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Test the IAT sensor using a multimeter to ensure it is functioning correctly. Replace if faulty.
  4. Clear the DTC with a scan tool and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, further diagnostics may be needed to check for ECM issues or intake air leaks.

Cost to Fix P0111 2017 Chevrolet Silverado

The typical repair costs for addressing a P0111 code on a 2017 Chevrolet Silverado can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. Keep in mind that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

Tech Notes for P0111 2017 Chevrolet Silverado

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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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 2017 Chevrolet Silverado Code

What does OBDII code P0111 mean for a 2017 Chevrolet Silverado?

P0111 indicates a problem with the Intake Air Temperature (IAT) circuit, specifically that the performance range is out of expected limits.

What symptoms might I experience if my Silverado has a P0111 code?

Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and the check engine light illuminated.

What could cause the P0111 code in my Silverado?

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

How can I diagnose the P0111 code?

Start by checking the IAT sensor and its wiring for damage or corrosion. Use a multimeter to test the sensor's resistance and compare it to the manufacturer's specifications.

What are some common repairs for the P0111 code?

Common repairs include replacing a faulty IAT sensor, repairing damaged wiring or connectors, and reprogramming or replacing the ECM if necessary.

Will driving my Silverado with a P0111 code cause further damage?

While it may not cause immediate damage, driving with this code can lead to reduced performance and fuel efficiency, so it’s advisable to address it promptly.

Can I clear the P0111 code without fixing the problem?

Yes, you can clear the code with an OBDII scanner, but it will likely reappear if the underlying issue is not resolved.

Is the P0111 code a serious issue?

It can lead to decreased engine performance and fuel efficiency, so it should be addressed to maintain optimal vehicle operation.

Should I consult a professional mechanic for the P0111 code?

If you're not comfortable diagnosing or repairing the issue yourself, it's best to consult a professional mechanic to avoid further complications.

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