AutoCodesChevrolet – P0072 2014 Chevrolet Silverado

P0072 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado 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.
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Code Popularity 273
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 16, 2022
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Code P0072 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado - Ambient Air Temperature Sensor Circuit Low Voltage - AutoCodes.com
P0072 2014 Chevrolet Silverado Code - Ambient Air Temperature Sensor Circuit Low Voltage

What are the Possible Causes of the DTC P0072 2014 Chevrolet Silverado?

  • 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 2014 Chevrolet Silverado?

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 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado code?

Need more information on how to fix the P0072 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0072 in a 2014 Chevrolet Silverado?

- Common symptoms include inaccurate temperature readings on the dashboard, issues with the HVAC system, and potential illumination of the check engine light.

2. What does the OBDII code P0072 in a 2014 Chevrolet Silverado indicate?

- The code P0072 indicates a low voltage condition in the ambient air temperature sensor circuit.

3. What are the possible causes of the ambient air temperature sensor circuit low voltage issue in a 2014 Chevrolet Silverado?

- Possible causes include a faulty ambient air temperature sensor, damaged wiring or connectors, a malfunctioning sensor module, or issues with the vehicle's computer system.

4. How can I diagnose the ambient air temperature sensor circuit low voltage problem in my 2014 Chevrolet Silverado?

- Diagnosing this issue involves using a multimeter to test the voltage output of the ambient air temperature sensor, checking the wiring for any damage or loose connections, and inspecting the sensor module for faults.

5. Is it safe to continue driving my 2014 Chevrolet Silverado with the P0072 trouble code?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent further complications and ensure accurate temperature readings.

6. Can I repair the ambient air temperature sensor circuit low voltage problem in my 2014 Chevrolet Silverado myself?

- Depending on your experience level, you may be able to replace the ambient air temperature sensor or repair damaged wiring yourself. However, more complex issues may require professional assistance.

7. How much does it typically cost to repair the ambient air temperature sensor circuit low voltage issue in a 2014 Chevrolet Silverado?

- The cost of repairs can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Will resetting the check engine light resolve the P0072 trouble code in my 2014 Chevrolet Silverado?

- Resetting the check engine light may temporarily clear the code, but it will likely reappear if the underlying issue with the ambient air temperature sensor circuit is not addressed.

9. How important is the ambient air temperature sensor in a 2014 Chevrolet Silverado?

- The ambient air temperature sensor plays a crucial role in providing accurate temperature data to the vehicle's systems, affecting various functions such as the HVAC system and engine performance.

10. Can extreme weather conditions affect the ambient air temperature sensor circuit in a 2014 Chevrolet Silverado?

- Extreme weather conditions, such as extreme heat or cold, can potentially impact the performance of the ambient air temperature sensor and contribute to the P0072 trouble code.

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