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Engine-Codes – Nissan – P0137 2011 Nissan Altima Sedan

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

Quick Answer

The P0137 code for a 2011 Nissan Altima Sedan indicates a problem with the Heated Oxygen Sensor (HO2S) Circuit Low Voltage for Bank 1 Sensor 2. Common causes include Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning HO2S, Damaged Wiring: Corrosion, fraying, or damage to the wiring harness connected to the oxygen sensor can cause low voltage readings, Exhaust System Leaks: Leaks in the exhaust system can introduce excess oxygen into the exhaust stream, leading to incorrect readings from the oxygen 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 2011 Nissan Altima Sedan indicates Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning HO2S, Damaged Wiring: Corrosion, fraying, or damage to the wiring harness connected to the oxygen sensor can cause low voltage readings, Exhaust System Leaks: Leaks in the exhaust system can introduce excess oxygen into the exhaust stream, leading to incorrect readings from the oxygen 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0137 2011 Nissan Altima Sedan Description

The P0137 code for a 2011 Nissan Altima Sedan indicates a problem with the Heated Oxygen Sensor (HO2S) Circuit Low Voltage for Bank 1 Sensor 2. This sensor is located downstream of the catalytic converter and is responsible for monitoring the oxygen content in the exhaust gases. The engine control module (ECM) uses the data from this sensor to adjust the air-fuel mixture for optimal combustion.

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

Common Causes of P0137 2011 Nissan Altima Sedan

  1. Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning HO2S.
  2. Damaged Wiring: Corrosion, fraying, or damage to the wiring harness connected to the oxygen sensor can cause low voltage readings.
  3. Exhaust System Leaks: Leaks in the exhaust system can introduce excess oxygen into the exhaust stream, leading to incorrect readings from the oxygen sensor.
  4. ECM Issues: A problem with the engine control module can also cause the sensor to receive incorrect voltage signals.
  5. Vacuum Leaks: Vacuum leaks in the intake system can disrupt the air-fuel mixture, affecting the readings from the oxygen sensor.

Symptoms of P0137 2011 Nissan Altima Sedan

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Decreased Fuel Efficiency: A faulty oxygen sensor can cause the engine to run less efficiently, resulting in decreased fuel economy.
  3. Rough Idle: The engine may experience rough idling or hesitation when accelerating.
  4. Failed Emissions Test: A malfunctioning oxygen sensor can cause the vehicle to fail emissions testing.
  5. Engine Misfires: In some cases, the engine may experience misfires due to an incorrect air-fuel mixture.

How to Fix P0137 2011 Nissan Altima Sedan

  1. Diagnostic Scan: Begin by using a diagnostic scanner to retrieve the specific trouble code and confirm the issue with the HO2S.
  2. Inspect Wiring: Inspect the wiring harness connected to the sensor for any signs of damage or corrosion. Repair or replace as necessary.
  3. Replace Oxygen Sensor: If the sensor is found to be faulty, replace it with a new one. Make sure to use an OEM or high-quality replacement to ensure proper operation.
  4. Clear Codes: After completing the repair, clear the trouble codes from the ECM using the diagnostic scanner.
  5. Test Drive: Take the vehicle for a test drive to ensure that the check engine light does not reappear and that the engine is running smoothly.

Cost to Fix P0137 2011 Nissan Altima Sedan

The typical repair costs for resolving a P0137 code on a 2011 Nissan Altima Sedan can range from $150 to $300. This estimate includes the cost of a new oxygen sensor, labor for installation, and diagnostic fees. It's important to note that prices can vary depending on the location, the specific make and model of the vehicle, and the type of engine. Additionally, labor rates at auto repair shops can range from $80 to $150 per hour, with rates potentially higher at dealerships or in metropolitan areas, and lower at independent shops. It's recommended to obtain local quotes for a more accurate estimate.

What does this mean?

Tech Notes for P0137 2011 Nissan Altima Sedan

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 Altima Sedan Code

1. What are the common symptoms of OBDII code P0137 on a 2011 Nissan Altima Sedan?

The common symptoms of OBDII code P0137 (Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2) on a 2011 Nissan Altima Sedan may include poor fuel economy, rough idling, and an illuminated check engine light.

2. What can cause the OBDII code P0137 on a 2011 Nissan Altima Sedan?

The OBDII code P0137 on a 2011 Nissan Altima Sedan is typically caused by a faulty heated oxygen sensor (HO2S), wiring issues, or a problem with the vehicle's engine control module (ECM).

3. How serious is the OBDII code P0137 on a 2011 Nissan Altima Sedan?

While the vehicle may still be drivable with the OBDII code P0137, it is important to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance and fuel efficiency.

4. Can I drive my 2011 Nissan Altima Sedan with the OBDII code P0137?

It is generally safe to drive your 2011 Nissan Altima Sedan with the OBDII code P0137, but it is recommended to have the issue diagnosed and repaired as soon as possible to avoid further complications.

5. How can I repair the OBDII code P0137 on my 2011 Nissan Altima Sedan?

To repair the OBDII code P0137 on a 2011 Nissan Altima Sedan, you may need to replace the Bank 1 Sensor 2 heated oxygen sensor, inspect and repair any damaged wiring, or reset the engine control module (ECM) after addressing the underlying issue.

6. Is it possible to reset the OBDII code P0137 on a 2011 Nissan Altima Sedan without fixing the problem?

Resetting the OBDII code P0137 on a 2011 Nissan Altima Sedan without addressing the root cause may temporarily turn off the check engine light, but the code is likely to reappear once the ECM detects the issue again.

7. How can I prevent the OBDII code P0137 from coming back on my 2011 Nissan Altima Sedan?

Regular maintenance, such as replacing the oxygen sensors at recommended intervals and ensuring proper engine performance, can help prevent the recurrence of the OBDII code P0137 on a 2011 Nissan Altima Sedan.

8. Can a faulty catalytic converter cause the OBDII code P0137 on a 2011 Nissan Altima Sedan?

While a faulty catalytic converter is not a direct cause of the OBDII code P0137, prolonged driving with a malfunctioning heated oxygen sensor can eventually lead to damage to the catalytic converter.

9. How long does it take to repair the OBDII code P0137 on a 2011 Nissan Altima Sedan?

The repair time for the OBDII code P0137 on a 2011 Nissan Altima Sedan can vary depending on the exact cause of the issue, but it may take anywhere from 30 minutes to a few hours to complete the necessary repairs.

10. Can I use a generic OBDII scanner to diagnose the code P0137 on my 2011 Nissan Altima Sedan?

Yes, a generic OBDII scanner can be used to retrieve and diagnose the code P0137 on a 2011 Nissan Altima Sedan, but for a more detailed analysis and repair, it is recommended to visit a professional mechanic or dealership.

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