P0072 2018 GMC Sierra Code - Ambient Air Temperature Sensor Circuit Low Voltage
Quick Answer
The Engine Control Module (ECM) monitors the ambient air temperature sensor with a low reference circuit and signal circuit. Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection. 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
- P0072 2018 GMC Sierra indicates Ambient Air Temperature Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection.
- 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.
Code P0072 2018 GMC Sierra Description
What are the Possible Causes of the DTC P0072 2018 GMC Sierra?
- Faulty Ambient Air Temperature Sensor
- Ambient Air Temperature Sensor harness is open or shorted
- Ambient Air Temperature Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0072 2018 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0072 2018 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0072 2018 GMC Sierra code?
Need more information on how to fix the P0072 2018 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0072 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0072 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code P0072 in a 2018 GMC Sierra?
The common symptoms of OBDII code P0072 in a 2018 GMC Sierra include incorrect temperature readings on the dashboard, issues with the vehicle's climate control system, and potential engine performance problems.
2. What does the Ambient Air Temperature Sensor do in a 2018 GMC Sierra?
The Ambient Air Temperature Sensor in a 2018 GMC Sierra measures the outside air temperature and sends this information to the engine control module (ECM) to help regulate various systems like the climate control and engine performance.
3. What causes the Ambient Air Temperature Sensor Circuit Low Voltage error code (P0072) in a 2018 GMC Sierra?
The Ambient Air Temperature Sensor Circuit Low Voltage error code (P0072) in a 2018 GMC Sierra is typically caused by a faulty ambient air temperature sensor, damaged wiring or connectors, or issues with the sensor's electrical circuit.
4. How can I diagnose the Ambient Air Temperature Sensor Circuit Low Voltage issue (P0072) in my 2018 GMC Sierra?
To diagnose the Ambient Air Temperature Sensor Circuit Low Voltage issue (P0072) in a 2018 GMC Sierra, you can use a scan tool to read the OBDII codes, visually inspect the sensor and its connections for any damage, and perform a voltage test on the sensor.
5. Can I drive my 2018 GMC Sierra with the P0072 error code?
It is generally safe to drive your 2018 GMC Sierra with the P0072 error code, but it is recommended to address the issue promptly to prevent potential problems with the vehicle's climate control system and engine performance.
6. How do I repair the Ambient Air Temperature Sensor Circuit Low Voltage error code (P0072) in my 2018 GMC Sierra?
To repair the Ambient Air Temperature Sensor Circuit Low Voltage error code (P0072) in a 2018 GMC Sierra, you may need to replace the ambient air temperature sensor, repair any damaged wiring or connectors, or reset the ECM after fixing the issue.
7. Are there any DIY tips for fixing the P0072 error code in a 2018 GMC Sierra?
If you are familiar with automotive repairs, you can attempt to replace the ambient air temperature sensor yourself by following the vehicle's service manual or online guides. However, if you are unsure, it is advisable to seek professional help.
8. How much does it cost to fix the Ambient Air Temperature Sensor Circuit Low Voltage error code (P0072) in a 2018 GMC Sierra?
The cost of fixing the Ambient Air Temperature Sensor Circuit Low Voltage error code (P0072) in a 2018 GMC Sierra can vary depending on the cause of the issue, the labor rates of the service provider, and the cost of replacement parts. It is recommended to obtain quotes from different repair shops.
9. Can a faulty Ambient Air Temperature Sensor affect fuel efficiency in a 2018 GMC Sierra?
Yes, a faulty Ambient Air Temperature Sensor can potentially affect fuel efficiency in a 2018 GMC Sierra by causing incorrect air-fuel mixture adjustments based on inaccurate temperature readings, leading to suboptimal engine performance.
10. How often should the Ambient Air Temperature Sensor be replaced in a 2018 GMC Sierra?
The Ambient Air Temperature Sensor in a 2018 GMC Sierra does not have a specific replacement interval. It is recommended to replace the sensor when it fails or shows signs of malfunction to ensure accurate temperature readings and proper operation of the vehicle's systems.
Discuss the causes and fixes for P0072 2018 GMC Sierra OBDII Code
Code P0072 2018 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.
