P0112 2018 Chevrolet Silverado Code - Intake Air Temperature Sensor Circuit Low Voltage
Quick Answer
The P0112 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to the Intake Air Temperature (IAT) Sensor Circuit Low Voltage. Common causes include Faulty IAT Sensor: The most common cause of the P0112 code is a defective or failed IAT sensor, Wiring Issues: Damaged or corroded wiring connections to the IAT sensor can disrupt the voltage signal, triggering the code, ECM Malfunction: A malfunctioning ECM can misinterpret the voltage signal from the IAT sensor, leading to the P0112 code. 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 2018 Chevrolet Silverado indicates Intake Air Temperature Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty IAT Sensor: The most common cause of the P0112 code is a defective or failed IAT sensor, Wiring Issues: Damaged or corroded wiring connections to the IAT sensor can disrupt the voltage signal, triggering the code, ECM Malfunction: A malfunctioning ECM can misinterpret the voltage signal from the IAT sensor, leading to the P0112 code.
- 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 P0112 2018 Chevrolet Silverado Description
The P0112 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to the Intake Air Temperature (IAT) Sensor Circuit 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 the air-fuel mixture for optimal combustion. When the ECM detects that the voltage from the IAT sensor is lower than expected, it triggers the P0112 code.
Common Causes of P0112 2018 Chevrolet Silverado
- Faulty IAT Sensor: The most common cause of the P0112 code is a defective or failed IAT sensor.
- Wiring Issues: Damaged or corroded wiring connections to the IAT sensor can disrupt the voltage signal, triggering the code.
- ECM Malfunction: A malfunctioning ECM can misinterpret the voltage signal from the IAT sensor, leading to the P0112 code.
- Intake Air Leaks: Air leaks in the intake system can affect the IAT sensor readings, causing the code to be triggered.
- Environmental Factors: Extreme temperatures or exposure to moisture can also impact the IAT sensor's functionality, leading to the P0112 code.
Symptoms of P0112 2018 Chevrolet Silverado
- Check Engine Light: The most common symptom associated with the P0112 code is the illumination of the check engine light on the dashboard.
- Poor Engine Performance: The vehicle may experience rough idling, hesitation, or a lack of power during acceleration.
- Reduced Fuel Efficiency: A malfunctioning IAT sensor can lead to decreased fuel efficiency, resulting in more frequent trips to the gas station.
- Emission Issues: Incorrect air-fuel mixtures can cause an increase in emissions, potentially leading to a failed emissions test.
How to Fix P0112 2018 Chevrolet Silverado
- Diagnose the Issue: Use a diagnostic scanner to retrieve the DTC and confirm the P0112 code. Check the IAT sensor and wiring connections for any visible damage.
- Replace the IAT Sensor: If the sensor is found to be faulty, replace it with a new OEM or high-quality aftermarket sensor.
- Repair Wiring Connections: If wiring issues are identified, repair or replace damaged wires and ensure secure connections to the IAT sensor.
- Clear Codes and Test Drive: After completing the repairs, clear the DTC with the diagnostic scanner and test drive the vehicle to ensure the issue has been resolved.
- Monitor Performance: Keep an eye on the vehicle's performance and check for any recurring issues related to the IAT sensor.
Cost to Fix P0112 2018 Chevrolet Silverado
The typical repair costs for addressing the P0112 code on a 2018 Chevrolet Silverado 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 sensor replacement and diagnostic testing can range from $80 to $150 per hour. Overall, the total repair cost for this issue may fall within the range of $100 to $300, including parts and labor. It's important to note that actual repair costs may vary based on the location of the repair shop, the vehicle's make and model, and any additional repairs or services required. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate specific to your vehicle.
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