AutoCodes – Nissan – P0139 2012 Nissan Rogue

P0139 2012 Nissan Rogue Code - HO2S12 Slow Response

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
P0139 2012 Nissan Rogue indicates HO2S12 Slow Response.
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 2,589
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 14, 2024
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Code P0139 2012 Nissan Rogue 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 P0139 2012 Nissan Rogue - HO2S12 Slow Response - AutoCodes.com
P0139 2012 Nissan Rogue Code - HO2S12 Slow Response

What are the Possible Causes of the DTC P0139 2012 Nissan Rogue?

  • 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 P0139 2012 Nissan Rogue?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0139 2012 Nissan Rogue 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.

Need more information about the P0139 2012 Nissan Rogue code?

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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 P0139 2012 Nissan Rogue Code

1. What does the OBDII code P0139 on a 2012 Nissan Rogue mean?

The code P0139 on a 2012 Nissan Rogue indicates a slow response from the HO2S12 sensor, which is the oxygen sensor located after the catalytic converter.

2. What are the common symptoms of a HO2S12 slow response issue in a 2012 Nissan Rogue?

Common symptoms of a HO2S12 slow response issue in a 2012 Nissan Rogue include poor fuel economy, rough idling, and a noticeable decrease in engine performance.

3. What are the potential causes of the P0139 code on a 2012 Nissan Rogue?

Potential causes of the P0139 code on a 2012 Nissan Rogue include a faulty HO2S12 sensor, wiring issues, exhaust leaks, or a problem with the catalytic converter.

4. How can I diagnose the HO2S12 slow response issue in my 2012 Nissan Rogue?

Diagnosing the HO2S12 slow response issue in a 2012 Nissan Rogue involves checking the sensor's wiring for damage, inspecting the sensor for contamination, and testing the sensor's response time using a scan tool.

5. Can I continue driving my 2012 Nissan Rogue with the P0139 code present?

It is not recommended to continue driving your 2012 Nissan Rogue with the P0139 code present, as it can lead to further damage to the engine or catalytic converter if left unresolved.

6. How can I repair the HO2S12 slow response issue on my 2012 Nissan Rogue?

Repairing the HO2S12 slow response issue on a 2012 Nissan Rogue typically involves replacing the faulty oxygen sensor (HO2S12) and addressing any underlying wiring or exhaust system problems.

7. Is it possible to reset the P0139 code on a 2012 Nissan Rogue without fixing the underlying issue?

Resetting the P0139 code on a 2012 Nissan Rogue without fixing the underlying issue will only temporarily clear the code, as the issue causing the slow response will likely trigger the code again.

8. How much does it cost to repair a HO2S12 slow response issue on a 2012 Nissan Rogue?

The cost to repair a HO2S12 slow response issue on a 2012 Nissan Rogue can vary depending on the root cause, but it typically ranges from $150 to $400 for parts and labor.

9. Can a DIY enthusiast replace the HO2S12 sensor on a 2012 Nissan Rogue?

Replacing the HO2S12 sensor on a 2012 Nissan Rogue can be done by a DIY enthusiast with the right tools and knowledge, but it is recommended to follow manufacturer guidelines and safety precautions.

10. How often should the oxygen sensors be inspected on a 2012 Nissan Rogue to prevent P0139 code issues?

It is recommended to inspect the oxygen sensors on a 2012 Nissan Rogue during regular maintenance intervals or whenever you experience symptoms like poor fuel economy or engine performance to prevent P0139 code issues.

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