P0051 2011 Nissan Sentra Code - Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low
Quick Answer
Air-Fuel Ratio (A/F) sensor need to reach a minimum operating temperature of 1200 degrees F to produce an accurate voltage signal. Common causes include Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 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
- P0051 2011 Nissan Sentra indicates Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low.
- Common causes
- Common causes include Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground, Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 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 P0051 2011 Nissan Sentra Description
In order to achieve the require temperature, a heater element is included inside the air-fuel ratio sensor. The ECM controls the air-fuel ratio sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
What are the Possible Causes of the DTC P0051 2011 Nissan Sentra?
- Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection
- Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit fuse
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0051 2011 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 P0051 2011 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 P0051 2011 Nissan Sentra Code
1. What are the common symptoms of OBDII code P0051 in a 2011 Nissan Sentra?
- Common symptoms include poor fuel economy, rough idling, loss of power, and the illumination of the Check Engine Light.
2. What does the OBDII code P0051 on a 2011 Nissan Sentra indicate?
- The code P0051 indicates a low voltage condition in the control circuit of the Air Fuel Ratio Sensor 1 Heater Bank 2.
3. What are the possible causes of OBDII code P0051 in a 2011 Nissan Sentra?
- Common causes include a faulty air fuel ratio sensor, damaged wiring or connectors, a blown fuse, or an issue with the engine control module (ECM).
4. How can I diagnose the OBDII code P0051 in my 2011 Nissan Sentra?
- You can diagnose the code by checking the sensor's wiring and connectors for damage, testing the sensor's resistance, inspecting the fuse, and using a scan tool to monitor sensor data.
5. Can I continue driving my 2011 Nissan Sentra with the OBDII code P0051?
- It is not recommended to drive the vehicle with a P0051 code as it can lead to reduced fuel efficiency and engine performance issues.
6. How can I repair the OBDII code P0051 in my 2011 Nissan Sentra?
- Repair options include replacing the Air Fuel Ratio Sensor 1 Heater, repairing damaged wiring or connectors, replacing the fuse if necessary, or addressing any ECM issues.
7. Can a DIY enthusiast fix the OBDII code P0051 in a 2011 Nissan Sentra?
- While some aspects of the repair can be DIY-friendly, it is recommended to have a professional mechanic diagnose and repair the issue to ensure it is properly addressed.
8. How much does it cost to repair the OBDII code P0051 in a 2011 Nissan Sentra?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $500 at a mechanic's shop.
9. How long does it take to fix the OBDII code P0051 in a 2011 Nissan Sentra?
- The repair time can vary based on the specific problem, but it typically takes around 1-2 hours to diagnose and repair the issue.
10. Is the OBDII code P0051 a common issue in 2011 Nissan Sentras?
- While it's not the most common issue, some 2011 Nissan Sentra owners have reported encountering the P0051 code related to the Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low.
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