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P2247 Hyundai Code - O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1

Quick Answer

The P2247 diagnostic trouble code (DTC) for Hyundai vehicles indicates an issue with the O2 sensor reference voltage circuit on bank 2 sensor 1. Common causes include Wiring Issues: Corrosion, damage, or breaks in the wiring connecting the O2 sensor to the ECM can disrupt the reference voltage circuit, Sensor Failure: A malfunctioning O2 sensor can also trigger this code, requiring replacement to resolve the issue, Connector Problems: Loose or damaged connectors between the sensor and the ECM can cause communication issues and trigger the code. 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
P2247 Hyundai indicates O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1.
Common causes
Common causes include Wiring Issues: Corrosion, damage, or breaks in the wiring connecting the O2 sensor to the ECM can disrupt the reference voltage circuit, Sensor Failure: A malfunctioning O2 sensor can also trigger this code, requiring replacement to resolve the issue, Connector Problems: Loose or damaged connectors between the sensor and the ECM can cause communication issues and trigger the code.
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 09, 2024
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Code P2247 Hyundai Description

The P2247 diagnostic trouble code (DTC) for Hyundai vehicles indicates an issue with the O2 sensor reference voltage circuit on bank 2 sensor 1. This sensor is responsible for monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. The reference voltage circuit is essential for the sensor to accurately measure the oxygen content in the exhaust.

OBDII Code P2247 Hyundai - O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1
P2247 Hyundai Code - O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1

Common Causes of P2247 Hyundai

  1. Wiring Issues: Corrosion, damage, or breaks in the wiring connecting the O2 sensor to the ECM can disrupt the reference voltage circuit.
  2. Sensor Failure: A malfunctioning O2 sensor can also trigger this code, requiring replacement to resolve the issue.
  3. Connector Problems: Loose or damaged connectors between the sensor and the ECM can cause communication issues and trigger the code.
  4. ECM Malfunction: In some cases, a fault in the engine control module itself can lead to issues with the O2 sensor reference voltage circuit.

Symptoms of P2247 Hyundai

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A faulty O2 sensor reference voltage circuit can lead to inefficient fuel combustion, resulting in decreased fuel efficiency.
  3. Rough Idle: The engine may experience rough idling or hesitation when the O2 sensor is not functioning properly.
  4. Engine Misfires: Incorrect air-fuel mixture adjustments can cause engine misfires, leading to poor performance and potential damage.

How to Fix P2247 Hyundai

  1. Diagnose the Issue: Use an OBD-II scanner to retrieve the specific DTC and pinpoint the faulty bank 2 sensor 1 O2 sensor reference voltage circuit.
  2. Inspect Wiring and Connectors: Check the wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test O2 Sensor: Test the O2 sensor itself to determine if it is faulty and needs replacement.
  4. Replace O2 Sensor: If the sensor is determined to be the issue, replace bank 2 sensor 1 with a new, compatible O2 sensor.
  5. Clear Codes: After completing the repair, clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2247 Hyundai

The cost estimate for repairing a P2247 O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1 code can vary depending on the specific vehicle make and model, as well as the location and labor rates of the auto repair shop. Generally, the cost of a new O2 sensor can range from $50 to $200, while the labor costs for diagnosis and replacement can add another $100 to $200.

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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 P2247 Hyundai Code

1. What does the OBDII code P2247 for Hyundai mean?

The code P2247 indicates an issue with the O2 sensor reference voltage circuit being open for Bank 2 Sensor 1 in a Hyundai vehicle.

2. What are the common symptoms of a P2247 OBDII code in a Hyundai?

Common symptoms of a P2247 code may include poor fuel economy, rough idling, engine misfires, and the illumination of the check engine light on the dashboard.

3. What are the possible causes of a P2247 OBDII code in a Hyundai?

Potential causes of a P2247 code include a faulty O2 sensor, damaged wiring or connectors in the O2 sensor circuit, a blown fuse, or a malfunctioning engine control module (ECM).

4. How can I diagnose a P2247 OBDII code in a Hyundai?

Diagnosing a P2247 code involves using an OBDII scanner to retrieve the specific fault code, inspecting the O2 sensor wiring and connectors for damage, checking the fuse related to the O2 sensor circuit, and testing the O2 sensor itself.

5. Can I drive my Hyundai with a P2247 OBDII code?

It is generally not recommended to drive your Hyundai with a P2247 code as it can lead to poor engine performance and potentially cause further damage. It is best to address the issue promptly.

6. How can I repair a P2247 OBDII code in my Hyundai?

To repair a P2247 code, you may need to replace the faulty O2 sensor, repair any damaged wiring or connectors, replace a blown fuse, or have the engine control module (ECM) reprogrammed or replaced if necessary.

7. Will a P2247 OBDII code cause my Hyundai to fail an emissions test?

Yes, a P2247 code can cause your Hyundai to fail an emissions test due to the impact on the vehicle's emissions system and performance.

8. How much does it cost to fix a P2247 OBDII code in a Hyundai?

The cost to fix a P2247 code in a Hyundai can vary depending on the specific cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can I reset the P2247 OBDII code in my Hyundai without fixing the issue?

While you can clear the code using an OBDII scanner, the underlying issue causing the P2247 code will still need to be addressed to prevent it from reoccurring.

10. How long does it take to repair a P2247 OBDII code in a Hyundai?

The repair time for a P2247 code in a Hyundai can vary based on the complexity of the issue and the specific components that need to be addressed, but it may take anywhere from 1 to 3 hours or more at a repair shop.

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