P0139 2009 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 2009 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.
Code P0139 2009 Nissan Rogue Description
What are the Possible Causes of the DTC P0139 2009 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 2009 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 2009 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 2009 Nissan Rogue code?
Need more information on how to fix the P0139 2009 Nissan Rogue code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0139 2009 Nissan Rogue code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0139 2009 Nissan Rogue Code
1. What does OBDII code P0139 mean on a 2009 Nissan Rogue?
P0139 indicates a slow response from the secondary oxygen sensor (HO2S12) located after the catalytic converter, meaning it is not switching between rich and lean efficiently.
2. What are the common symptoms of a P0139 code in a 2009 Nissan Rogue?
Symptoms may include the Check Engine Light turning on, reduced fuel efficiency, poor engine performance, or a noticeable delay in throttle response.
3. What causes a P0139 code in a 2009 Nissan Rogue?
Common causes include a faulty downstream oxygen sensor, exhaust leaks, a malfunctioning catalytic converter, or issues like contamination from oil or coolant.
4. Can a dirty oxygen sensor trigger a P0139 code?
Yes, a dirty or contaminated oxygen sensor can slow its response time, which may trigger the P0139 code.
5. How do you diagnose a P0139 code on a 2009 Nissan Rogue?
Diagnosis involves using an OBDII scanner to confirm the code, monitoring sensor data for slow response patterns, and visually inspecting the sensor, wiring, and exhaust system for damage or leaks.
6. Can a bad catalytic converter cause a P0139 code?
Yes, a degraded catalytic converter can cause irregular exhaust readings that may lead to a P0139 code.
7. How do you fix a P0139 code on a 2009 Nissan Rogue?
Repairs may include replacing the downstream oxygen sensor, repairing exhaust leaks, cleaning connectors, or replacing the catalytic converter if necessary.
8. Is it safe to drive a 2009 Nissan Rogue with a P0139 code?
While it may be safe to drive for a short time, ignoring the issue can lead to reduced fuel efficiency and potential damage to the catalytic converter.
9. How much does it cost to fix a P0139 code on a 2009 Nissan Rogue?
Costs can range from $150 to $300 to replace the oxygen sensor, but repairs involving the catalytic converter can exceed $1,000.
10. Can a P0139 code cause a failed emissions test?
Yes, a P0139 code can result in higher emissions and cause your vehicle to fail an emissions test.
Discuss the causes and fixes for P0139 2009 Nissan Rogue OBDII Code
Code P0139 2009 Nissan Rogue comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
