Engine-CodesChevrolet – P0112 2014 Chevrolet Silverado

P0112 2014 Chevrolet Silverado Code - Intake Air Temperature Sensor Circuit Low Voltage

Quick Answer

The P0112 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates a problem with the Intake Air Temperature (IAT) sensor circuit, specifically reporting low voltage. Common causes include Faulty IAT Sensor: The IAT sensor itself may be malfunctioning, providing incorrect temperature readings, Damaged Wiring: Wiring harnesses connecting the IAT sensor to the ECM may be frayed, corroded, or damaged, leading to low voltage, Poor Electrical Connections: Loose or corroded electrical connectors in the sensor circuit can disrupt the signal transmission. 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 2014 Chevrolet Silverado indicates Intake Air Temperature Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty IAT Sensor: The IAT sensor itself may be malfunctioning, providing incorrect temperature readings, Damaged Wiring: Wiring harnesses connecting the IAT sensor to the ECM may be frayed, corroded, or damaged, leading to low voltage, Poor Electrical Connections: Loose or corroded electrical connectors in the sensor circuit can disrupt the signal transmission.
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 P0112 2014 Chevrolet Silverado Description

The P0112 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates a problem with the Intake Air Temperature (IAT) sensor circuit, specifically reporting low voltage. The IAT sensor is a crucial component of the 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 fuel delivery and ignition timing for optimal performance and efficiency.

OBDII Code P0112 2014 Chevrolet Silverado - Intake Air Temperature Sensor Circuit Low Voltage
P0112 2014 Chevrolet Silverado Code - Intake Air Temperature Sensor Circuit Low Voltage

Common Causes of P0112 2014 Chevrolet Silverado

  1. Faulty IAT Sensor: The IAT sensor itself may be malfunctioning, providing incorrect temperature readings.
  2. Damaged Wiring: Wiring harnesses connecting the IAT sensor to the ECM may be frayed, corroded, or damaged, leading to low voltage.
  3. Poor Electrical Connections: Loose or corroded electrical connectors in the sensor circuit can disrupt the signal transmission.
  4. ECM Malfunction: A malfunctioning ECM may not be properly interpreting the IAT sensor data, triggering the low voltage code.
  5. Environmental Factors: Exposure to extreme temperatures or moisture can damage the IAT sensor or its wiring, causing circuit issues.

Symptoms of P0112 2014 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with the P0112 code is the illumination of the Check Engine Light on the dashboard.
  2. Poor Fuel Economy: A malfunctioning IAT sensor can lead to incorrect fuel delivery, resulting in decreased fuel efficiency.
  3. Rough Idling: The engine may experience rough idling or stalling due to improper air-fuel mixture adjustments.
  4. Engine Misfires: Incorrect ignition timing caused by faulty IAT sensor readings can lead to engine misfires.
  5. Reduced Performance: The vehicle may exhibit reduced power and overall performance due to suboptimal engine management.

How to Fix P0112 2014 Chevrolet Silverado

  1. Diagnostic Scan: Use an OBD-II scanner to retrieve and record the P0112 code, along with any other related codes for a comprehensive diagnosis.
  2. Inspect IAT Sensor: Check the IAT sensor for physical damage, corrosion, or loose connections. Replace the sensor if necessary.
  3. Check Wiring and Connectors: Inspect the wiring harness and connectors for damage or corrosion. Repair or replace as needed.
  4. Test ECM Functionality: Verify the ECM's ability to interpret IAT sensor data accurately. Replace the ECM if it is found to be faulty.
  5. Clear Codes and Test Drive: Clear the DTCs from the ECM memory, then test drive the vehicle to ensure the issue has been resolved and the Check Engine Light does not reappear.

Cost to Fix P0112 2014 Chevrolet Silverado

The typical repair costs for addressing a P0112 code on a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a faulty IAT sensor can cost between $50 and $100, while repairing damaged wiring or connectors may range from $100 to $200. If the ECM needs to be replaced, the cost can be significantly higher, potentially exceeding $500.

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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 2014 Chevrolet Silverado Code

1. What does the OBDII code P0112 mean on a 2014 Chevrolet Silverado?

P0112 indicates that the Intake Air Temperature (IAT) sensor circuit is reporting a low voltage signal, suggesting the sensor is detecting a temperature that is too low or there is an electrical issue.

2. What are the common symptoms of the P0112 code on a 2014 Chevrolet Silverado?

Symptoms may include poor engine performance, reduced fuel efficiency, rough idling, difficulty starting, and the check engine light being illuminated.

3. What causes the P0112 code to appear in a 2014 Chevrolet Silverado?

Common causes include a faulty IAT sensor, damaged or corroded wiring, a short circuit, a dirty air filter, or a problem with the engine control module (ECM).

4. Can I drive my 2014 Chevrolet Silverado with the P0112 code?

While the vehicle may still be drivable, continued operation with this code can lead to poor performance and potential damage to the engine, so it’s best to address it promptly.

5. How do I fix the P0112 code on my 2014 Chevrolet Silverado?

Repairs may involve replacing the IAT sensor, cleaning or replacing the air filter, repairing damaged wiring, or inspecting and fixing any electrical connections in the circuit.

6. Where is the Intake Air Temperature (IAT) sensor located on a 2014 Chevrolet Silverado?

The IAT sensor is typically located in the air intake duct, near the air filter housing, or integrated with the mass air flow (MAF) sensor.

7. How much does it cost to repair the P0112 code on a 2014 Chevrolet Silverado?

Repair costs vary but typically range from $50 to $200, depending on whether the IAT sensor needs replacement or if wiring repairs are required.

8. Can a dirty air filter cause the P0112 code on a 2014 Chevrolet Silverado?

Yes, a dirty or clogged air filter can restrict airflow and affect the IAT sensor readings, potentially triggering the P0112 code.

9. How can I test the IAT sensor on my 2014 Chevrolet Silverado?

You can test the IAT sensor using a multimeter to check its resistance at different temperatures or verify the voltage signal it sends to the ECM.

10. Will clearing the P0112 code fix the issue on my 2014 Chevrolet Silverado?

Clearing the code may temporarily turn off the check engine light, but if the underlying issue isn’t resolved, the code will return.

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