Engine-Codes.com
Engine-Codes – Chevrolet – P0031 2016 Chevrolet Silverado

P0031 2016 Chevrolet Silverado Code - HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1

Quick Answer

The P0031 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado refers to a problem with the HO2S (Heated Oxygen Sensor) Heater Control Circuit Low Voltage on Bank 1 Sensor 1. Common causes include Faulty Oxygen Sensor: The most common cause of the P0031 code is a malfunctioning oxygen sensor, which may have a damaged heater element or wiring, Wiring Issues: Damaged or corroded wiring in the HO2S Heater Control Circuit can prevent the sensor from receiving sufficient voltage, ECM Malfunction: A problem with the engine control module (ECM) can also cause the HO2S Heater Control Circuit to receive low voltage. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0031 2016 Chevrolet Silverado indicates HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1.
Common causes
Common causes include Faulty Oxygen Sensor: The most common cause of the P0031 code is a malfunctioning oxygen sensor, which may have a damaged heater element or wiring, Wiring Issues: Damaged or corroded wiring in the HO2S Heater Control Circuit can prevent the sensor from receiving sufficient voltage, ECM Malfunction: A problem with the engine control module (ECM) can also cause the HO2S Heater Control Circuit to receive low voltage.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0031 2016 Chevrolet Silverado Description

The P0031 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado refers to a problem with the HO2S (Heated Oxygen Sensor) Heater Control Circuit Low Voltage on Bank 1 Sensor 1. This code indicates that the oxygen sensor located in the exhaust system before the catalytic converter on the side with cylinder 1 is not receiving enough voltage to properly function. The oxygen sensor plays a crucial role in monitoring the air-fuel ratio in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the fuel mixture for optimal combustion.

OBDII Code P0031 2016 Chevrolet Silverado - HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1
P0031 2016 Chevrolet Silverado Code - HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1

Common Causes of P0031 2016 Chevrolet Silverado

  1. Faulty Oxygen Sensor: The most common cause of the P0031 code is a malfunctioning oxygen sensor, which may have a damaged heater element or wiring.
  2. Wiring Issues: Damaged or corroded wiring in the HO2S Heater Control Circuit can prevent the sensor from receiving sufficient voltage.
  3. ECM Malfunction: A problem with the engine control module (ECM) can also cause the HO2S Heater Control Circuit to receive low voltage.
  4. Exhaust Leak: A leak in the exhaust system near the oxygen sensor can affect its performance and trigger the P0031 code.
  5. Fuse Failure: A blown fuse in the oxygen sensor circuit can lead to a low voltage condition and cause the code to set.

Symptoms of P0031 2016 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with the P0031 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A malfunctioning oxygen sensor can cause the engine to run rich or lean, resulting in decreased fuel efficiency.
  3. Rough Idle: An improper air-fuel mixture due to a faulty oxygen sensor can lead to rough idling or stalling of the engine.
  4. Engine Misfires: Inaccurate readings from the oxygen sensor can cause the engine to misfire or run erratically.
  5. Failed Emissions Test: If the P0031 code is not addressed, it can lead to increased emissions and potentially cause the vehicle to fail emissions tests.

How to Fix P0031 2016 Chevrolet Silverado

  1. Diagnose the Issue: Use a scan tool to retrieve the P0031 code and perform a visual inspection of the oxygen sensor and related wiring.
  2. Test the Oxygen Sensor: Check the resistance of the oxygen sensor's heater element and inspect the wiring for any damage or corrosion.
  3. Replace the Oxygen Sensor: If the oxygen sensor is faulty, replace it with a new sensor that meets the manufacturer's specifications.
  4. Repair Wiring: Repair or replace any damaged wiring in the HO2S Heater Control Circuit to ensure proper voltage supply to the oxygen sensor.
  5. Clear the Code: After completing the repair, clear the P0031 code from the ECM's memory using a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0031 2016 Chevrolet Silverado

The typical repair costs for addressing the P0031 code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of replacing an oxygen sensor ranges from $100 to $300, including parts and labor. However, if additional repairs are needed for wiring or other components, the total cost could be higher. It's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may differ at dealerships or in metropolitan areas. It's recommended to obtain quotes from local shops for a more accurate estimate of repair costs.

What does this mean?

Tech Notes for P0031 2016 Chevrolet Silverado

The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The control module monitors how long it takes the sensor to warm up and start sending an adequate signal. The code is set when the sensor is taking too long to warm up. Water getting inside the heated oxygen sensor connector can cause the heated oxygen sensor fuse to blow. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. If the fuse and connector are OK, replacing the O2 Sensor usually takes care of the problem.

Need more information about the P0031 2016 Chevrolet Silverado code?

Need more information on how to fix the P0031 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0031 2016 Chevrolet Silverado 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 P0031 2016 Chevrolet Silverado Code

1. What does the OBDII code P0031 on a 2016 Chevrolet Silverado mean?

The code P0031 indicates an issue with the HO2S (Heated Oxygen Sensor) Heater Control Circuit on Bank 1 Sensor 1, showing low voltage.

2. What are the common symptoms of the P0031 code in a 2016 Chevrolet Silverado?

Common symptoms of the P0031 code may include poor fuel economy, rough idling, decreased engine performance, and the illumination of the Check Engine Light.

3. What are the possible causes of the P0031 code on a 2016 Chevrolet Silverado?

Potential causes of the P0031 code include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).

4. How can I diagnose the P0031 code on my 2016 Chevrolet Silverado?

Diagnosing the P0031 code involves checking the oxygen sensor's wiring and connectors, testing the sensor's resistance, inspecting the fuse, and scanning the ECM for related error codes.

5. How do I repair the HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1 issue on my 2016 Chevrolet Silverado?

To repair the P0031 code, you may need to replace the Bank 1 Sensor 1 oxygen sensor, repair any damaged wiring or connectors, replace blown fuses, or reprogram the ECM if necessary.

6. Can I continue driving my 2016 Chevrolet Silverado with the P0031 code present?

While the vehicle may still be operable with the P0031 code, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

7. How much does it cost to fix the P0031 code on a 2016 Chevrolet Silverado?

The cost of repairing the P0031 code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Is it possible to reset the P0031 code on a 2016 Chevrolet Silverado without repairing the underlying issue?

While you can clear the code using an OBDII scanner, it is not recommended to simply reset the code without addressing the root cause, as the issue may persist and trigger the Check Engine Light again.

9. How often does the HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1 problem occur in 2016 Chevrolet Silverados?

The P0031 code related to the HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1 can occur sporadically in 2016 Chevrolet Silverados, often due to sensor wear or electrical issues over time.

10. Can a DIY enthusiast fix the P0031 code on a 2016 Chevrolet Silverado, or should I consult a professional mechanic?

Depending on your automotive repair skills and tools available, you may be able to address the P0031 code yourself by following proper diagnostic procedures and repair guidelines. However, consulting a professional mechanic is advisable for complex or uncertain cases to ensure accurate diagnosis and repair.

Discuss the causes and fixes for P0031 2016 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P0031 2016 Chevrolet Silverado comments

No comments found for this page.