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Engine-Codes – Nissan – P0137 2008 Nissan Altima Sedan

P0137 2008 Nissan Altima Sedan Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Quick Answer

The P0137 code for a 2008 Nissan Altima Sedan indicates a problem with the Heated Oxygen Sensor (HO2S) Circuit Low Voltage for Bank 1 Sensor 2. Common causes include Faulty Heated Oxygen Sensor (HO2S), Damaged wiring or connectors, Malfunctioning Engine Control Module (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 2008 Nissan Altima Sedan indicates Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes
Common causes include Faulty Heated Oxygen Sensor (HO2S), Damaged wiring or connectors, Malfunctioning Engine Control Module (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 2008 Nissan Altima Sedan Description

The P0137 code for a 2008 Nissan Altima Sedan 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 optimal fuel efficiency and reduce harmful emissions. Bank 1 Sensor 2 refers to the sensor located downstream of the catalytic converter in the exhaust system.

OBDII Code P0137 2008 Nissan Altima Sedan - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2
P0137 2008 Nissan Altima Sedan Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

Common Causes of P0137 2008 Nissan Altima Sedan

  1. Faulty Heated Oxygen Sensor (HO2S)
  2. Damaged wiring or connectors
  3. Malfunctioning Engine Control Module (ECM)
  4. Exhaust leaks
  5. Contaminated fuel

Symptoms of P0137 2008 Nissan Altima Sedan

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Check Engine Light illuminated
  4. Failed emissions test
  5. Poor acceleration or engine performance

How to Fix P0137 2008 Nissan Altima Sedan

  1. Begin by diagnosing the specific cause of the low voltage signal, which may involve using a scan tool to retrieve live data from the oxygen sensor.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
  3. Test the oxygen sensor's functionality using a multimeter to ensure it is sending accurate signals.
  4. If the oxygen sensor is determined to be faulty, replace it with a new sensor compatible with the vehicle's make and model.
  5. Clear the diagnostic trouble codes from the ECM and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0137 2008 Nissan Altima Sedan

The typical repair costs for addressing a P0137 code on a 2008 Nissan Altima Sedan can range from $150 to $400, including parts and labor. However, it's 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. Most auto repair shops charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It is recommended to inquire about local rates for a more accurate estimate.

What does this mean?

Tech Notes for P0137 2008 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 2008 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0137 on a 2008 Nissan Altima Sedan?

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

2. What does the OBDII code P0137 indicate on a 2008 Nissan Altima Sedan?

- The code indicates a low voltage condition in the heated oxygen sensor circuit of Bank 1 Sensor 2.

3. What are the possible causes of a Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2 error on a 2008 Nissan Altima Sedan?

- Potential causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, or a failing catalytic converter.

4. How can I diagnose the cause of OBDII code P0137 on my 2008 Nissan Altima Sedan?

- Diagnose the issue by inspecting the oxygen sensor and its wiring, checking for exhaust leaks, and using a multimeter to test voltage readings.

5. Can I drive my 2008 Nissan Altima Sedan with OBDII code P0137?

- It is generally safe to drive the vehicle for a short period with this code, but it is recommended to address the issue promptly to avoid further damage.

6. How can I repair a Heated Oxygen Sensor Circuit Low Voltage error on my 2008 Nissan Altima Sedan?

- Repair options include replacing the oxygen sensor, repairing damaged wiring, fixing exhaust leaks, or replacing the catalytic converter if necessary.

7. Is it possible to reset the OBDII code P0137 on a 2008 Nissan Altima Sedan without fixing the issue?

- While you can clear the code with an OBDII scanner, the underlying issue causing the code will remain unresolved until properly addressed.

8. How much does it typically cost to fix OBDII code P0137 on a 2008 Nissan Altima Sedan?

- The cost of repairs can vary depending on the root cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P0137 on a 2008 Nissan Altima Sedan?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to replace the oxygen sensor or address wiring issues themselves.

10. How often should the oxygen sensors be replaced in a 2008 Nissan Altima Sedan to prevent OBDII code P0137 from recurring?

- Oxygen sensors typically last around 60,000 to 100,000 miles, so it is recommended to replace them within that range to prevent recurring issues.

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