Engine-CodesFord – P0137 2012 Ford Fusion

P0137 2012 Ford Fusion Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The P0137 code for a 2012 Ford Fusion indicates an issue with the O2 sensor circuit having low voltage for Bank 1 Sensor 2. Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Exhaust leaks near the O2 sensor. 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
P0137 2012 Ford Fusion indicates O2 Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty O2 sensor, Wiring or connector issues in the O2 sensor circuit, Exhaust leaks near the O2 sensor.
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.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0137 2012 Ford Fusion Description

The P0137 code for a 2012 Ford Fusion indicates an issue with the O2 sensor circuit having low voltage for Bank 1 Sensor 2. The oxygen sensor, also known as the O2 sensor, plays a crucial role in 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. In this case, Bank 1 Sensor 2 refers to the downstream oxygen sensor located after the catalytic converter in Bank 1 of the engine.

OBDII Code P0137 2012 Ford Fusion - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
P0137 2012 Ford Fusion Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

Common Causes of P0137 2012 Ford Fusion

  1. Faulty O2 sensor.
  2. Wiring or connector issues in the O2 sensor circuit.
  3. Exhaust leaks near the O2 sensor.
  4. Issues with the ECM or related components.
  5. Contaminated or damaged O2 sensor.

Symptoms of P0137 2012 Ford Fusion

  1. Check Engine Light illuminated on the dashboard.
  2. Decreased fuel efficiency.
  3. Rough idling or stalling.
  4. Engine hesitation or misfiring.
  5. Increased emissions output.

How to Fix P0137 2012 Ford Fusion

  1. Use an OBD-II scanner to confirm the P0137 code and diagnose the specific issue with the O2 sensor.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as needed.
  3. Test the O2 sensor using a multimeter to determine if it is functioning properly, replacing it if necessary.
  4. Check for exhaust leaks near the O2 sensor and repair them.
  5. Clear the error code and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0137 2012 Ford Fusion

The typical repair costs for addressing a P0137 code on a 2012 Ford Fusion can range from $150 to $400, including parts and labor. However, actual costs may vary depending on the specific diagnosis time and labor rates at auto repair shops, which can be influenced by factors like location, vehicle make and model, and engine type. It is advisable to obtain quotes from local repair shops to get a more accurate estimate.

Tech Notes for P0137 2012 Ford Fusion

Replacing the rear O2 Sensor bank 1 usually takes care of the problem.

When is the Code Detected?

The P0137 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively low for an extended period of time.

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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 P0137 2012 Ford Fusion Code

1. What does the OBDII code P0137 on a 2012 Ford Fusion mean?

This code indicates a problem with the O2 sensor circuit, specifically low voltage detected from Bank 1 Sensor 2.

2. What are the common symptoms of a P0137 code in a 2012 Ford Fusion?

Common symptoms include poor fuel economy, rough idling, engine hesitation, and an illuminated check engine light.

3. What are the possible causes of the P0137 code on a 2012 Ford Fusion?

Potential causes may include a faulty O2 sensor, damaged wiring or connectors, exhaust leaks, or issues with the vehicle's computer system.

4. How can I diagnose the source of a P0137 code on my 2012 Ford Fusion?

Diagnosing the issue involves checking the O2 sensor's wiring and connectors, inspecting for exhaust leaks, and testing the sensor's voltage output using a multimeter.

5. Can I drive my 2012 Ford Fusion with a P0137 code?

It is generally not recommended to drive with a P0137 code for an extended period as it can lead to decreased fuel efficiency and potential damage to the catalytic converter.

6. How can I repair a P0137 code on a 2012 Ford Fusion?

Repair options may include replacing the Bank 1 Sensor 2 O2 sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, and clearing the code with an OBDII scanner.

7. Is it possible to reset the P0137 code on a 2012 Ford Fusion without fixing the issue?

While you can clear the code with an OBDII scanner, it is important to address the underlying problem to prevent further issues and ensure your vehicle operates efficiently.

8. How much does it cost to fix a P0137 code on a 2012 Ford Fusion?

The cost can vary depending on the specific cause of the code, but it typically ranges from $100 to $300 for parts and labor.

9. Can a P0137 code on a 2012 Ford Fusion cause emissions test failure?

Yes, a P0137 code can lead to emissions test failure due to the impact on the vehicle's emissions control system.

10. How often should the O2 sensors be replaced on a 2012 Ford Fusion to prevent recurring P0137 codes?

O2 sensors generally have a lifespan of 60,000 to 100,000 miles, so it's recommended to replace them within this mileage range to prevent recurring P0137 codes.

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