AutoCodes – Chevrolet – P0072 2015 Chevrolet Silverado

P0072 2015 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 2015 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 298

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
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Code P0072 2015 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 2015 Chevrolet Silverado - Ambient Air Temperature Sensor Circuit Low Voltage - AutoCodes.com — P0072 2015 Chevrolet Silverado Code - Ambient Air Temperature Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0072 2015 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 2015 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 2015 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 2015 Chevrolet Silverado code?

Need more information on how to fix the P0072 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P0072 on a 2015 Chevrolet Silverado?

The common symptoms of code P0072 include incorrect temperature readings on the dashboard, issues with the vehicle's air conditioning system, and potential fuel efficiency problems.

2. What does the OBDII code P0072 mean for a 2015 Chevrolet Silverado?

The code P0072 indicates a low voltage condition in the ambient air temperature sensor circuit of the 2015 Chevrolet Silverado.

3. What are the possible causes of OBDII code P0072 on a 2015 Chevrolet Silverado?

Possible causes of code P0072 include a faulty ambient air temperature sensor, damaged wiring in the sensor circuit, or a problem with the sensor's connection.

4. How can I diagnose the OBDII code P0072 on my 2015 Chevrolet Silverado?

Diagnosing code P0072 involves using a scan tool to retrieve the code, checking the ambient air temperature sensor for proper function, inspecting the sensor's wiring for damage, and testing the sensor's voltage.

5. Can I still drive my 2015 Chevrolet Silverado with OBDII code P0072?

It is generally safe to drive your Silverado with code P0072, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent any potential long-term problems.

6. How can I repair OBDII code P0072 on my 2015 Chevrolet Silverado?

Repairing code P0072 may involve replacing the ambient air temperature sensor, repairing any damaged wiring in the sensor circuit, or ensuring a secure connection for the sensor.

7. Is it possible to reset OBDII code P0072 on a 2015 Chevrolet Silverado without fixing the issue?

Resetting the code without addressing the underlying problem may temporarily turn off the check engine light, but the code is likely to reappear once the issue persists.

8. Can extreme weather conditions trigger OBDII code P0072 on a 2015 Chevrolet Silverado?

Extreme temperatures can sometimes affect the ambient air temperature sensor and trigger code P0072, but it is essential to verify the sensor's functionality to rule out other causes.

9. How much does it cost to fix OBDII code P0072 on a 2015 Chevrolet Silverado?

The cost of fixing code P0072 can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Are there any recalls or service bulletins related to OBDII code P0072 on a 2015 Chevrolet Silverado?

It is advisable to check with a Chevrolet dealership or online resources for any recalls or service bulletins related to code P0072 on a 2015 Silverado to see if there are any known issues or remedies provided by the manufacturer.