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P0137 2011 Nissan Sentra Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The P0137 code for a 2011 Nissan Sentra indicates a problem with the Heated Oxygen Sensor (HO2S) circuit having low voltage for Bank 1 Sensor 2. Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning ECM. 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 2011 Nissan Sentra indicates Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning ECM.
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 13, 2024
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Code P0137 2011 Nissan Sentra Description

The P0137 code for a 2011 Nissan Sentra indicates a problem with the Heated Oxygen Sensor (HO2S) circuit having low voltage for Bank 1 Sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust gases after they have passed through the catalytic converter. The information provided by the sensor is crucial for the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion efficiency.

OBDII Code P0137 2011 Nissan Sentra - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
P0137 2011 Nissan Sentra Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Common Causes of P0137 2011 Nissan Sentra

  1. Faulty oxygen sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Malfunctioning ECM
  4. Exhaust leaks
  5. Issues with the fuel system

Symptoms of P0137 2011 Nissan Sentra

  1. Decreased fuel efficiency
  2. Rough idling
  3. Hesitation during acceleration
  4. Increased emissions
  5. Check Engine Light illuminated on the dashboard

How to Fix P0137 2011 Nissan Sentra

  1. Begin by locating the Bank 1 Sensor 2 oxygen sensor, typically located after the catalytic converter.
  2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the oxygen sensor using a multimeter to check for proper voltage output. Replace the sensor if it is faulty.
  4. Clear the diagnostic trouble codes from the ECM using an OBD-II scanner.
  5. After completing the repair, drive the vehicle to ensure the issue has been resolved and the Check Engine Light does not reappear.

Cost to Fix P0137 2011 Nissan Sentra

The cost of repairing a P0137 code on a 2011 Nissan Sentra can vary depending on the specific cause of the issue. Typically, the cost of a new oxygen sensor ranges from $50 to $200, depending on the brand and quality. Labor costs for this repair can range from $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total cost for this repair could range from $150 to $500. It's important to note that prices may vary based on location and the specific circumstances of the vehicle. It's recommended to obtain quotes from local auto repair shops for a more accurate estimate.

What does this mean?

Tech Notes for P0137 2011 Nissan Sentra

Replacing the Rear Heated Oxygen 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 2011 Nissan Sentra Code

1. What does OBDII code P0137 mean on a 2011 Nissan Sentra?

This code indicates a "Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2" issue, specifically related to the oxygen sensor downstream of the catalytic converter.

2. What are the common symptoms of P0137 in a 2011 Nissan Sentra?

Common symptoms include poor fuel economy, rough idling, stalling, hesitation during acceleration, and the illumination of the Check Engine Light.

3. What are the possible causes of the P0137 code on a 2011 Nissan Sentra?

Potential causes include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks near the sensor, or issues with the engine's fuel system.

4. How can I diagnose the P0137 code on my 2011 Nissan Sentra?

Diagnosing P0137 typically involves using an OBDII scanner to read the code, checking the oxygen sensor's wiring and connectors for damage, inspecting the sensor for physical defects, and testing the sensor's voltage output.

5. Can I continue driving my 2011 Nissan Sentra with the P0137 code?

It is not recommended to continue driving with the P0137 code unresolved, as it can lead to decreased fuel efficiency and potentially cause damage to the catalytic converter over time.

6. How do I repair the P0137 code on my 2011 Nissan Sentra?

Repairing P0137 often involves replacing the Bank 1 Sensor 2 oxygen sensor, fixing any damaged wiring or connectors, addressing exhaust leaks if present, and clearing the trouble code from the vehicle's computer.

7. Is it possible to reset the P0137 code on a 2011 Nissan Sentra without fixing the underlying issue?

While you can clear the code using an OBDII scanner, the Check Engine Light is likely to reappear if the root cause of the P0137 code is not addressed.

8. How much does it cost to fix the P0137 code on a 2011 Nissan Sentra?

The cost of repairing the P0137 code can vary depending on the specific issue causing the code, but it typically includes the cost of a new oxygen sensor, any necessary parts, and labor charges.

9. Can a DIY enthusiast fix the P0137 code on a 2011 Nissan Sentra?

Depending on your skill level and access to tools, you may be able to replace the oxygen sensor yourself. However, diagnosing and repairing wiring or other issues may require professional assistance.

10. How often does the Bank 1 Sensor 2 oxygen sensor need to be replaced in a 2011 Nissan Sentra?

The oxygen sensor downstream of the catalytic converter, Bank 1 Sensor 2, typically lasts around 100,000 miles but can fail sooner due to various factors like poor fuel quality or driving conditions.

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