AutoCodes – Chevrolet – P1031 Chevrolet

P1031 Chevrolet Code - HO2S Heater Current Monitor Control Circuit Banks 1 And 2 Sensor 1

Quick Answer

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor Bank 1 or 2. Common causes include Faulty Heated Oxygen Sensor Bank 1 or 2, Heated Oxygen Sensor Bank 1 or 2 harness is open or shorted, Heated Oxygen Sensor Bank 1 or 2 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
P1031 Chevrolet indicates HO2S Heater Current Monitor Control Circuit Banks 1 And 2 Sensor 1.
Common causes
Common causes include Faulty Heated Oxygen Sensor Bank 1 or 2, Heated Oxygen Sensor Bank 1 or 2 harness is open or shorted, Heated Oxygen Sensor Bank 1 or 2 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 5,504
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 18, 2020
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Code P1031 Chevrolet Description

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor Bank 1 or 2. The PCM sets the OBDII code when the Heated Oxygen Sensor Bank 1 or 2 is not to factory specifications.
OBDII Code P1031 Chevrolet - HO2S Heater Current Monitor Control Circuit Banks 1 And 2 Sensor 1 - AutoCodes.com
P1031 Chevrolet Code - HO2S Heater Current Monitor Control Circuit Banks 1 And 2 Sensor 1

What are the Possible Causes of the DTC P1031 Chevrolet?

  • Faulty Heated Oxygen Sensor Bank 1 or 2
  • Heated Oxygen Sensor Bank 1 or 2 harness is open or shorted
  • Heated Oxygen Sensor Bank 1 or 2 circuit poor electrical connection

How to Fix the DTC P1031 Chevrolet?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1031 Chevrolet 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 P1031 Chevrolet 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 P1031 Chevrolet Code

1. What are the common symptoms of OBDII code P1031 in a Chevrolet?

- Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and possible stalling.

2. What does the OBDII code P1031 indicate in a Chevrolet?

- The code P1031 indicates a problem with the HO2S (Heated Oxygen Sensor) Heater Current Monitor Control Circuit for Banks 1 and 2, Sensor 1.

3. What are the possible causes of OBDII code P1031 in a Chevrolet?

- Possible causes 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 issue related to OBDII code P1031 in a Chevrolet?

- Diagnosing the issue may involve checking the oxygen sensor's wiring and connectors, testing the sensor's heater circuit, and inspecting the ECM for any faults.

5. Can I still drive my Chevrolet with the OBDII code P1031 present?

- It is not recommended to drive your Chevrolet with the code P1031 present, as it can lead to further engine damage and decreased performance.

6. How can I repair OBDII code P1031 in a Chevrolet?

- Repairing the code may involve replacing the faulty oxygen sensor, repairing damaged wiring or connectors, replacing blown fuses, or addressing any ECM issues.

7. Is it possible to reset the OBDII code P1031 in a Chevrolet without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is important to address the root cause to prevent the issue from recurring.

8. Can extreme weather conditions affect the HO2S Heater Current Monitor Control Circuit and trigger code P1031?

- Yes, extreme cold or heat can potentially affect the sensor's heater circuit and lead to the activation of OBDII code P1031.

9. How often should the oxygen sensors be inspected and replaced in a Chevrolet to prevent OBDII code P1031?

- It is recommended to inspect and replace the oxygen sensors as part of regular maintenance, typically every 60,000 to 100,000 miles.

10. Are there any recalls or technical service bulletins related to OBDII code P1031 for Chevrolet vehicles?

- It is advisable to check with your Chevrolet dealership or refer to the manufacturer's website for any recalls or technical service bulletins related to code P1031 in your specific model.

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