AutoCodes – Nissan – P0137 2011 Nissan Pathfinder

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

Quick Answer

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection. 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 Pathfinder indicates Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2.
Common causes: Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
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.

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Code Popularity 3,381

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0137 2011 Nissan Pathfinder Description

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. The HO2S output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Engine Control Module (ECM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V.

OBDII Code P0137 2011 Nissan Pathfinder - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2 - AutoCodes.com — P0137 2011 Nissan Pathfinder Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0137 2011 Nissan Pathfinder?

Faulty Rear Heated Oxygen Sensor Bank 1
Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

How to Fix the DTC P0137 2011 Nissan Pathfinder?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0137 2011 Nissan Pathfinder code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 Pathfinder Code

1. What does the OBDII code P0137 on a 2011 Nissan Pathfinder indicate?

- The code P0137 refers to a Heated Oxygen Sensor Circuit Low Voltage on Bank 1 Sensor 2 in the exhaust system.

2. What are the common symptoms of a P0137 code on a 2011 Nissan Pathfinder?

- Common symptoms include poor fuel economy, rough idling, and potential stalling of the vehicle.

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

- Causes may include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, or issues with the engine's fuel system.

4. How can I diagnose a P0137 code on my 2011 Nissan Pathfinder?

- Diagnosing the issue involves using an OBDII scanner to read the code, checking the oxygen sensor's voltage, inspecting wiring and connectors, and looking for exhaust leaks.

5. Can I drive my 2011 Nissan Pathfinder with a P0137 code?

- It is not recommended to drive the vehicle with a P0137 code as it can lead to further damage and potentially affect the engine's performance.

6. How do I repair a P0137 code on a 2011 Nissan Pathfinder?

- Repair options may include replacing the oxygen sensor, repairing damaged wiring or connectors, fixing exhaust leaks, or addressing any fuel system issues.

7. Is it safe to reset the OBDII code P0137 on my 2011 Nissan Pathfinder without fixing the underlying issue?

- It is not advisable to simply reset the code without addressing the root cause, as the problem may persist and potentially worsen over time.

8. Can a P0137 code on a 2011 Nissan Pathfinder cause the Check Engine light to come on?

- Yes, a P0137 code can trigger the Check Engine light to illuminate on the dashboard of the 2011 Nissan Pathfinder.

9. How long does it typically take to repair a P0137 code on a 2011 Nissan Pathfinder?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem.

10. Will a P0137 code on a 2011 Nissan Pathfinder affect the vehicle's emissions and overall performance?

- Yes, a P0137 code can impact emissions levels and the overall performance of the 2011 Nissan Pathfinder, leading to reduced fuel efficiency and potential drivability issues.