P0112 2015 GMC Sierra Code - Intake Air Temperature Sensor Circuit Low Voltage
Quick Answer
The P0112 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Intake Air Temperature (IAT) Sensor Circuit registering low voltage. Common causes include Faulty IAT sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections. 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 2015 GMC Sierra indicates Intake Air Temperature Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty IAT sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor connections.
- 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 2015 GMC Sierra Description
The P0112 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Intake Air Temperature (IAT) Sensor Circuit registering low voltage. The IAT sensor is a crucial component of the vehicle's engine management system, as it measures the temperature of the incoming air to the engine. This information is used by the engine control module (ECM) to adjust fuel delivery and ignition timing for optimal performance and efficiency.
Common Causes of P0112 2015 GMC Sierra
- Faulty IAT sensor
- Damaged wiring or connectors in the sensor circuit
- Corrosion or contamination in the sensor connections
- ECM malfunction
- Intake air leaks near the sensor
Symptoms of P0112 2015 GMC Sierra
- Decreased fuel efficiency
- Reduced engine performance
- Rough idling or stalling
- Illuminated check engine light
- Engine misfires
How to Fix P0112 2015 GMC Sierra
- Begin by locating the IAT sensor in the intake air duct or manifold.
- Inspect the sensor and its wiring for any visible damage or corrosion.
- Test the sensor using a multimeter to check for proper resistance and voltage readings.
- If the sensor is faulty, replace it with a new one following manufacturer guidelines.
- Clear the DTC with a scan tool and test drive the vehicle to ensure the issue is resolved.
Cost to Fix P0112 2015 GMC Sierra
The typical repair costs for addressing a P0112 code on a 2015 GMC Sierra 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 can range from $80 to $150 per hour. Therefore, the total repair cost could range from $100 to $300, including parts and labor. It is advisable to consult with a trusted auto repair shop for a more accurate estimate based on your location and vehicle specifics.
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