P0137 2012 Nissan Sentra 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 2012 Nissan Sentra 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.
Code P0137 2012 Nissan Sentra Description
What are the Possible Causes of the DTC P0137 2012 Nissan Sentra?
- 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 2012 Nissan Sentra?
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 P0137 2012 Nissan Sentra 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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Frequently Asked Questions about P0137 2012 Nissan Sentra Code
1. What are the common symptoms of OBDII code P0137 on a 2012 Nissan Sentra?
- Common symptoms include decreased fuel efficiency, rough idle, engine misfires, and the illumination of the check engine light.
2. What does the OBDII code P0137 "Heated Oxygen Sensor Circuit Low Voltage Bank 1 Sensor 2" mean for a 2012 Nissan Sentra?
- This code indicates that the oxygen sensor located downstream of the catalytic converter on bank 1 is not operating within the expected voltage range.
3. What are some possible causes of the P0137 code on a 2012 Nissan Sentra?
- Common causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, a faulty catalytic converter, or issues with the engine's fuel system.
4. How can I diagnose the cause of the P0137 code on my 2012 Nissan Sentra?
- Diagnosing the issue involves checking the oxygen sensor's wiring and connections, inspecting the sensor itself, looking for exhaust leaks, and testing the catalytic converter's efficiency.
5. Can I continue driving my 2012 Nissan Sentra with the P0137 code illuminated?
- It is generally not recommended to continue driving with this code illuminated, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter over time.
6. How can I repair the P0137 code on my 2012 Nissan Sentra?
- Repair options may include replacing the oxygen sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, addressing fuel system issues, or replacing the catalytic converter if necessary.
7. Is it possible to reset the OBDII code P0137 on a 2012 Nissan Sentra without fixing the underlying issue?
- While clearing the code may temporarily turn off the check engine light, the issue causing the code will persist and may trigger the code again if not properly addressed.
8. Can a DIY enthusiast fix the P0137 code on a 2012 Nissan Sentra?
- Depending on the root cause, DIY enthusiasts with adequate knowledge and tools may be able to address issues like replacing the oxygen sensor or repairing wiring. However, more complex problems may require professional assistance.
9. How much does it typically cost to repair the P0137 code on a 2012 Nissan Sentra?
- The cost of repair can vary widely depending on the exact cause of the issue, but replacing an oxygen sensor can range from $100 to $300, while addressing catalytic converter problems can be more expensive.
10. How often should the oxygen sensors be replaced on a 2012 Nissan Sentra to prevent the P0137 code from recurring?
- Oxygen sensors typically have a lifespan of around 60,000 to 100,000 miles, so it's recommended to replace them within this interval to prevent issues like the P0137 code from reoccurring.
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