AutoCodes – GMC – P0072 2016 GMC Sierra

P0072 2016 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 2016 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 365

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0072 2016 GMC Sierra Description

The Engine Control Module (ECM) monitors the ambient air temperature sensor with a low reference circuit and signal circuit. The ECM monitors the voltage drop across the sensor, which is inversely proportional to temperature. When the ambient air temperature is cold, the resistance of the sensor is high. When the ambient air temperature is warm, the resistance of the sensors is low. The engine control module converts the voltage value to a temperature value and sends the value to the Display Module via serial data. The Display Module displays the temperature. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the Ambient Air Temperature Sensor signal is more than 88°C (190°F).

OBDII Code P0072 2016 GMC Sierra - Ambient Air Temperature Sensor Circuit Low Voltage - AutoCodes.com — P0072 2016 GMC Sierra Code - Ambient Air Temperature Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0072 2016 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 2016 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 2016 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 2016 GMC Sierra code?

Need more information on how to fix the P0072 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0072 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P0072 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P0072 in a 2016 GMC Sierra?

- Common symptoms include inaccurate temperature readings on the dashboard, issues with the climate control system, and potential impact on the vehicle's engine performance.

2. What causes the Ambient Air Temperature Sensor Circuit Low Voltage error (P0072) in a 2016 GMC Sierra?

- The P0072 code is typically triggered by a faulty ambient air temperature sensor, damaged wiring or connectors, or a malfunctioning engine control module (ECM).

3. How does a malfunctioning ambient air temperature sensor affect the vehicle?

- A faulty ambient air temperature sensor can lead to poor fuel efficiency, incorrect climate control system operation, and potential engine performance issues due to incorrect temperature readings.

4. Can I drive my 2016 GMC Sierra with OBDII code P0072?

- It is generally safe to drive the vehicle with the P0072 code, but it is recommended to address the issue promptly to prevent potential performance and efficiency issues.

5. How can I diagnose and repair the Ambient Air Temperature Sensor Circuit Low Voltage error in my 2016 GMC Sierra?

- Diagnosing and repairing the P0072 code involves checking the sensor's wiring and connectors for damage, testing the sensor's functionality, and possibly replacing the sensor if necessary.

6. Will resetting the OBDII code P0072 in my 2016 GMC Sierra make the issue go away?

- Resetting the code may temporarily clear the error, but if the underlying issue causing the P0072 code is not addressed, it is likely to reoccur.

7. Is the Ambient Air Temperature Sensor Circuit Low Voltage error (P0072) a serious issue in a 2016 GMC Sierra?

- While the P0072 code may not cause immediate harm to the vehicle, it can impact fuel efficiency, climate control system operation, and overall engine performance if left unresolved.

8. Can extreme weather conditions trigger the OBDII code P0072 in a 2016 GMC Sierra?

- Yes, extreme temperatures or exposure to moisture can sometimes cause the ambient air temperature sensor to malfunction, leading to the P0072 error code.

9. How much does it typically cost to repair the Ambient Air Temperature Sensor Circuit Low Voltage error in a 2016 GMC Sierra?

- The cost of repairing the P0072 code can vary depending on the underlying cause, but it may involve expenses for parts replacement and labor, ranging from $100 to $300 or more.

10. Can I fix the Ambient Air Temperature Sensor Circuit Low Voltage error (P0072) in my 2016 GMC Sierra myself?

- While some experienced DIYers may be able to diagnose and replace the ambient air temperature sensor themselves, it is recommended to consult a professional mechanic for accurate diagnosis and repair to ensure the issue is resolved correctly.