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

Quick Answer

The P2247 diagnostic trouble code (DTC) for Lincoln vehicles indicates a problem with the O2 sensor reference voltage circuit for Bank 2 Sensor 1. Common causes include Damaged Wiring: Corrosion, wear, or physical damage to the wiring harness connected to the O2 sensor can lead to an open circuit, Faulty Sensor: The O2 sensor itself may be faulty and unable to receive the necessary reference voltage, Loose Connections: Loose or disconnected connectors between the sensor and ECM can cause a loss of 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
P2247 Lincoln indicates O2 Sensor Reference Voltage Circuit Open Bank 2 Sensor 1.
Common causes
Common causes include Damaged Wiring: Corrosion, wear, or physical damage to the wiring harness connected to the O2 sensor can lead to an open circuit, Faulty Sensor: The O2 sensor itself may be faulty and unable to receive the necessary reference voltage, Loose Connections: Loose or disconnected connectors between the sensor and ECM can cause a loss of 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 09, 2024
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Code P2247 Lincoln Description

The P2247 diagnostic trouble code (DTC) for Lincoln vehicles indicates a problem with the O2 sensor reference voltage circuit for Bank 2 Sensor 1. This sensor is responsible for measuring the oxygen content in the exhaust gases and providing feedback to the engine control module (ECM) for proper air/fuel mixture adjustments. The reference voltage circuit is crucial for the sensor to function correctly and provide accurate data to the ECM.

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

Common Causes of P2247 Lincoln

  1. Damaged Wiring: Corrosion, wear, or physical damage to the wiring harness connected to the O2 sensor can lead to an open circuit.
  2. Faulty Sensor: The O2 sensor itself may be faulty and unable to receive the necessary reference voltage.
  3. Loose Connections: Loose or disconnected connectors between the sensor and ECM can cause a loss of voltage.
  4. ECM Malfunction: A malfunctioning ECM may not be sending the correct voltage signals to the O2 sensor.
  5. Exhaust System Damage: Physical damage to the exhaust system, such as leaks or cracks, can also affect the O2 sensor's performance.

Symptoms of P2247 Lincoln

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Poor Fuel Economy: A malfunctioning O2 sensor can lead to incorrect fuel mixture adjustments, resulting in decreased fuel efficiency.
  3. Rough Idling: The engine may experience rough idling or hesitation when the O2 sensor reference voltage circuit is open.
  4. Failed Emissions Test: If the O2 sensor is not functioning correctly, the vehicle may fail an emissions test due to increased emissions.

How to Fix P2247 Lincoln

  1. Diagnose the Issue: Use a diagnostic scanner to pinpoint the exact cause of the open circuit in the O2 sensor reference voltage circuit.
  2. Inspect Wiring and Connections: Check the wiring harness and connections for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test O2 Sensor: Test the O2 sensor itself to determine if it is faulty and needs replacement.
  4. Check ECM Function: Verify that the ECM is functioning correctly and sending the correct voltage signals to the sensor.
  5. Clear Codes and Test Drive: Clear the DTCs from the ECM, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2247 Lincoln

The cost of repairing the O2 sensor reference voltage circuit open issue can vary depending on the specific cause of the problem and the vehicle's make and model. In general, the cost of parts for this repair can range from $50 to $200, while labor charges can add an additional $100 to $200. Overall, the total repair cost may fall between $150 and $400, but it's crucial to consult with a professional mechanic for a more accurate estimate based on your vehicle's specific needs. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to inquire about rates in your local area for a more precise cost estimate.

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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.

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