P0071 2015 GMC Sierra Code - Ambient Air Temperature Sensor Performance
Quick Answer
The P0071 diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to the Ambient Air Temperature Sensor Performance. Common causes include Faulty Ambient Air Temperature Sensor: The sensor itself may be faulty or damaged, leading to inaccurate readings, Wiring Issues: Damaged or corroded wiring connected to the ambient air temperature sensor can cause performance issues, ECM Malfunction: A malfunctioning engine control module may not be able to interpret the signals from the ambient air temperature sensor correctly. 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
- P0071 2015 GMC Sierra indicates Ambient Air Temperature Sensor Performance.
- Common causes
- Common causes include Faulty Ambient Air Temperature Sensor: The sensor itself may be faulty or damaged, leading to inaccurate readings, Wiring Issues: Damaged or corroded wiring connected to the ambient air temperature sensor can cause performance issues, ECM Malfunction: A malfunctioning engine control module may not be able to interpret the signals from the ambient air temperature sensor correctly.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0071 2015 GMC Sierra Description
The P0071 diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to the Ambient Air Temperature Sensor Performance. This code indicates that there is a malfunction or performance issue with the ambient air temperature sensor in the vehicle. The ambient air temperature sensor is responsible for measuring the outside air temperature and sending this information to the engine control module (ECM) to help regulate various engine functions.
Common Causes of P0071 2015 GMC Sierra
- Faulty Ambient Air Temperature Sensor: The sensor itself may be faulty or damaged, leading to inaccurate readings.
- Wiring Issues: Damaged or corroded wiring connected to the ambient air temperature sensor can cause performance issues.
- ECM Malfunction: A malfunctioning engine control module may not be able to interpret the signals from the ambient air temperature sensor correctly.
- Environmental Factors: Exposure to extreme temperatures or moisture can affect the sensor's performance.
- Electrical Problems: Issues with the vehicle's electrical system can also trigger the P0071 code.
Symptoms of P0071 2015 GMC Sierra
- Check Engine Light: The most common symptom associated with the P0071 code is the illumination of the check engine light on the vehicle's dashboard.
- Inaccurate Temperature Readings: The vehicle may display incorrect outside temperature readings on the dashboard.
- Poor Fuel Efficiency: A malfunctioning ambient air temperature sensor can lead to decreased fuel efficiency as the ECM may not adjust the fuel mixture accurately.
- Rough Idling: The engine may experience rough idling or stalling due to incorrect temperature readings affecting engine performance.
How to Fix P0071 2015 GMC Sierra
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and perform a thorough inspection of the ambient air temperature sensor and related components.
- Replace the Ambient Air Temperature Sensor: If the sensor is found to be faulty, it will need to be replaced with a new one.
- Check Wiring: Inspect the wiring harness connected to the sensor for any damage or corrosion. Repair or replace as necessary.
- Clear the Code: After completing the repair, clear the trouble code from the ECM using the diagnostic scanner.
- Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.
Cost to Fix P0071 2015 GMC Sierra
The cost of repairing the P0071 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. Typically, the cost of replacing the ambient air temperature sensor can range from $50 to $150, while the labor cost for diagnosis and repair can range from $100 to $300. Overall, you can expect to pay anywhere from $150 to $450 for resolving this issue. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned earlier. Be sure to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.
Need more information about the P0071 2015 GMC Sierra code?
Need more information on how to fix the P0071 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0071 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0071 2015 GMC Sierra Code
1. What does the OBDII code P0071 mean on a 2015 GMC Sierra?
The P0071 code indicates an issue with the performance of the Ambient Air Temperature (AAT) sensor, often related to its signal being out of range or inconsistent.
2. What are the symptoms of a P0071 code on a GMC Sierra?
Symptoms may include incorrect ambient temperature readings on the dashboard, issues with the HVAC system, and potential problems with engine performance or fuel efficiency.
3. What causes the P0071 code to appear on a 2015 GMC Sierra?
Common causes include a faulty ambient air temperature sensor, damaged or corroded wiring, a poor electrical connection, or a failed control module.
4. Where is the ambient air temperature sensor located on a 2015 GMC Sierra?
The sensor is typically located near the front grille or behind the front bumper, where it can measure outside air temperature.
5. Can a faulty ambient air temperature sensor affect the vehicle’s performance?
Yes, it can impact HVAC operation and may affect engine performance by providing incorrect temperature data to the control module.
6. How do you diagnose a P0071 code on a GMC Sierra?
Diagnosis involves using a scan tool to check live data, inspecting the sensor and its wiring for damage, and testing the sensor's resistance with a multimeter.
7. Can I drive my 2015 GMC Sierra with a P0071 code?
While it may not cause immediate critical issues, it's best to address the code promptly to avoid potential HVAC or performance problems.
8. How do you fix a P0071 code on a GMC Sierra?
Repairs may include replacing the ambient air temperature sensor, repairing damaged wiring, cleaning corroded connections, or reprogramming the control module if needed.
9. How much does it cost to fix a P0071 code on a 2015 GMC Sierra?
The cost can range from $50 to $200, depending on whether only the sensor needs replacement or additional wiring repairs are required.
10. Can a P0071 code clear itself on a GMC Sierra?
The code may clear temporarily if the issue is intermittent, but it will likely reappear until the root cause is resolved.
Discuss the causes and fixes for P0071 2015 GMC Sierra OBDII Code
Code P0071 2015 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.