AutoCodes – Nissan – P0137 2006 Nissan Maxima

P0137 2006 Nissan Maxima 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 2006 Nissan Maxima 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 4,867

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0137 2006 Nissan Maxima 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 2006 Nissan Maxima - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2 - AutoCodes.com — P0137 2006 Nissan Maxima Code - Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0137 2006 Nissan Maxima?

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 2006 Nissan Maxima?

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 2006 Nissan Maxima 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 2006 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0137 on a 2006 Nissan Maxima?

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

2. What does the OBDII code P0137 for a 2006 Nissan Maxima indicate?

- This code indicates a low voltage condition in the heated oxygen sensor (HO2S) circuit of Bank 1 Sensor 2.

3. What are the possible causes of the P0137 code on a 2006 Nissan Maxima?

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

4. How can I diagnose the cause of the P0137 code on my 2006 Nissan Maxima?

- Diagnose by checking the oxygen sensor's voltage output, inspecting the wiring and connectors for damage, and addressing any exhaust leaks or fuel system problems.

5. Can I drive my 2006 Nissan Maxima with the P0137 code?

- It is not recommended to drive extensively with the P0137 code active, as it can lead to poor engine performance and potential damage to the catalytic converter.

6. How do I repair the P0137 code on a 2006 Nissan Maxima?

- Repair options may include replacing the Bank 1 Sensor 2 oxygen sensor, repairing damaged wiring or connectors, fixing exhaust leaks, or addressing fuel system issues.

7. Are there any DIY tips for fixing the P0137 code on a 2006 Nissan Maxima?

- DIY tips include ensuring proper tools and safety precautions, consulting the vehicle's service manual for guidance, and performing thorough inspections before replacing any parts.

8. How much does it typically cost to repair the P0137 code on a 2006 Nissan Maxima?

- The cost of repair can vary depending on the root cause, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.

9. Can resetting the check engine light make the P0137 code disappear on a 2006 Nissan Maxima?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear after driving the vehicle.

10. How often should the oxygen sensors be replaced on a 2006 Nissan Maxima to prevent the P0137 code?

- Oxygen sensors typically have a lifespan of 60,000 to 100,000 miles and should be inspected regularly as part of routine maintenance to prevent issues like the P0137 code.