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P0137 2007 Nissan Maxima Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The P0137 diagnostic trouble code (DTC) for a 2007 Nissan Maxima 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, Vacuum leak. 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 2007 Nissan Maxima indicates Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty oxygen sensor, Damaged wiring or connectors, Vacuum leak.
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 15, 2024
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Code P0137 2007 Nissan Maxima Description

The P0137 diagnostic trouble code (DTC) for a 2007 Nissan Maxima indicates a problem with the Heated Oxygen Sensor (HO2S) Circuit 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 data collected by this sensor is crucial for the engine control module (ECM) to adjust the air-fuel mixture to optimize combustion efficiency and reduce harmful emissions.

OBDII Code P0137 2007 Nissan Maxima - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
P0137 2007 Nissan Maxima Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Common Causes of P0137 2007 Nissan Maxima

  1. Faulty oxygen sensor
  2. Damaged wiring or connectors
  3. Vacuum leak
  4. Exhaust system leaks
  5. Issues with the ECM

Symptoms of P0137 2007 Nissan Maxima

  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 2007 Nissan Maxima

  1. Use an OBD-II scanner to confirm the P0137 code and identify the specific sensor causing the issue.
  2. Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Check for vacuum leaks and repair any leaks found.
  4. Inspect the exhaust system for leaks and repair as needed.
  5. Replace the Bank 1 Sensor 2 oxygen sensor if it is determined to be faulty.

Cost to Fix P0137 2007 Nissan Maxima

The typical repair costs for addressing a P0137 code on a 2007 Nissan Maxima can range from $150 to $400, including parts and labor. However, the 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's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

What does this mean?

Tech Notes for P0137 2007 Nissan Maxima

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 2007 Nissan Maxima Code

1. What does OBDII code P0137 mean for my 2007 Nissan Maxima?

- This code, "Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2," indicates that the oxygen sensor downstream of the catalytic converter is detecting a lower than expected voltage.

2. What are the common symptoms of OBDII code P0137 on a 2007 Nissan Maxima?

- Common symptoms include poor fuel economy, rough idling, engine misfires, and the illumination of the check engine light.

3. What are the possible causes of OBDII code P0137 on a 2007 Nissan Maxima?

- The code may be triggered by issues such as a faulty oxygen sensor, a damaged wiring harness, exhaust leaks, or a malfunctioning catalytic converter.

4. How can I diagnose the cause of OBDII code P0137 on my 2007 Nissan Maxima?

- Diagnosing the issue typically involves inspecting the oxygen sensor and its wiring, checking for exhaust leaks, and using a scan tool to monitor sensor data and voltage readings.

5. Can I continue driving my 2007 Nissan Maxima with OBDII code P0137?

- While the vehicle may still be driveable with this code, it is recommended to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

6. How can I repair OBDII code P0137 on my 2007 Nissan Maxima?

- Repair options may include replacing the oxygen sensor, repairing or replacing damaged wiring, fixing any exhaust leaks, or addressing issues with the catalytic converter.

7. Is it possible to reset the check engine light after fixing OBDII code P0137 on a 2007 Nissan Maxima?

- Yes, once the underlying issue triggering the code has been resolved, the check engine light can be reset using an OBDII scanner or by disconnecting the car battery for a few minutes.

8. What is the expected cost to repair OBDII code P0137 on a 2007 Nissan Maxima?

- The cost of repair can vary depending on the exact cause of the code, but it may range from around $100 for a simple sensor replacement to several hundred dollars for more complex repairs involving the catalytic converter.

9. How often should the oxygen sensors be replaced in a 2007 Nissan Maxima to prevent OBDII code P0137?

- Oxygen sensors typically have a lifespan of around 60,000 to 90,000 miles, so it is recommended to replace them within this mileage range to maintain optimal engine performance and avoid potential issues like code P0137.

10. Can a DIY enthusiast fix OBDII code P0137 on a 2007 Nissan Maxima, or should it be done by a professional mechanic?

- Depending on the individual's skill level and access to tools, DIY enthusiasts may be able to tackle simple repairs like replacing the oxygen sensor. However, more complex issues should be addressed by a professional mechanic to ensure proper diagnosis and repair.

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