Engine-CodesNissan – P0137 2006 Nissan Pathfinder

P0137 2006 Nissan Pathfinder Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The P0137 code for a 2006 Nissan Pathfinder indicates a problem with the Heated Oxygen Sensor (HO2S) Circuit Low Voltage for Bank 1 Sensor 2. Common causes include Faulty oxygen sensor, Damaged wiring or connectors, Exhaust leaks. 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 2006 Nissan Pathfinder indicates Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty oxygen sensor, Damaged wiring or connectors, Exhaust leaks.
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 Sep 15, 2024
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Code P0137 2006 Nissan Pathfinder Description

The P0137 code for a 2006 Nissan Pathfinder indicates a problem with the Heated Oxygen Sensor (HO2S) Circuit Low Voltage for Bank 1 Sensor 2. The oxygen sensor is a crucial component of the vehicle's emissions control system, responsible for monitoring the oxygen levels in the exhaust gases to ensure the proper air-fuel ratio for combustion. Bank 1 Sensor 2 refers to the sensor located downstream of the catalytic converter on the side of the engine with cylinder 1.

OBDII Code P0137 2006 Nissan Pathfinder - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
P0137 2006 Nissan Pathfinder Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Common Causes of P0137 2006 Nissan Pathfinder

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

Symptoms of P0137 2006 Nissan Pathfinder

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine misfires
  4. Illuminated check engine light
  5. Failed emissions test

How to Fix P0137 2006 Nissan Pathfinder

  1. Use an OBD-II scanner to confirm the P0137 code and pinpoint the exact issue.
  2. Inspect the oxygen sensor and its wiring for any damage or corrosion.
  3. Replace the Bank 1 Sensor 2 oxygen sensor if it is found to be faulty.
  4. Clear the code and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be needed to identify any underlying issues with the ECM or exhaust system.

Cost to Fix P0137 2006 Nissan Pathfinder

The typical repair costs for addressing a P0137 code on a 2006 Nissan Pathfinder can range from $150 to $300, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to check with local auto repair shops for a more accurate estimate.

Tech Notes for P0137 2006 Nissan Pathfinder

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 2006 Nissan Pathfinder Code

1. What does the OBDII code P0137 for a 2006 Nissan Pathfinder mean?

The code P0137 indicates a Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2 issue.

2. What are the common symptoms of a P0137 error in a 2006 Nissan Pathfinder?

Common symptoms include poor fuel economy, rough idling, engine hesitation, and a possible decrease in overall engine performance.

3. What are the possible causes of a P0137 error in a 2006 Nissan Pathfinder?

Potential causes include a faulty oxygen sensor, wiring issues in the oxygen sensor circuit, exhaust leaks, or a problem with the engine's computer system.

4. How can I diagnose a P0137 error in my 2006 Nissan Pathfinder?

Diagnosing a P0137 error typically involves using an OBDII scanner to read the code, inspecting the oxygen sensor and its wiring, checking for exhaust leaks, and testing the sensor's voltage output.

5. Can I continue driving my 2006 Nissan Pathfinder with a P0137 error code?

It is not recommended to drive your vehicle with a P0137 error for an extended period, as it can lead to poor engine performance and potential damage over time.

6. How can I repair a P0137 error in my 2006 Nissan Pathfinder?

Repair options may include replacing the oxygen sensor, repairing any damaged wiring, fixing exhaust leaks, or resetting the engine's computer system.

7. Is it possible to reset the P0137 error code in a 2006 Nissan Pathfinder without making any repairs?

While you can reset the error code using an OBDII scanner, it is crucial to address the underlying issue causing the P0137 code for long-term vehicle health.

8. How much does it cost to fix a P0137 error in a 2006 Nissan Pathfinder?

The cost of fixing a P0137 error can vary depending on the specific cause of the issue, but it may involve expenses for parts and labor at a repair shop.

9. Can a DIY enthusiast repair a P0137 error in a 2006 Nissan Pathfinder?

Some individuals with automotive repair experience may be able to address a P0137 error themselves, especially if they have the necessary tools and knowledge of oxygen sensor systems.

10. How often should I check the oxygen sensors in my 2006 Nissan Pathfinder to prevent P0137 errors?

It is recommended to inspect your oxygen sensors during regular vehicle maintenance intervals or whenever you notice symptoms of poor engine performance to help prevent P0137 errors.

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