P0051 2011 Nissan Pathfinder 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 Pathfinder 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 Pathfinder 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 Pathfinder?
- 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 Pathfinder?
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 is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0051 2011 Nissan Pathfinder 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 P0051 2011 Nissan Pathfinder code?
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Frequently Asked Questions about P0051 2011 Nissan Pathfinder Code
1. What are the common symptoms of OBDII code P0051 in a 2011 Nissan Pathfinder?
The common symptoms of OBDII code P0051 in a 2011 Nissan Pathfinder may include poor fuel efficiency, rough idling, and an illuminated check engine light.
2. What does the OBDII code P0051 on a 2011 Nissan Pathfinder indicate?
OBDII code P0051 on a 2011 Nissan Pathfinder indicates an issue with the Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit being low.
3. What are the possible causes of OBDII code P0051 on a 2011 Nissan Pathfinder?
Possible causes of OBDII code P0051 on a 2011 Nissan Pathfinder include a faulty air fuel ratio sensor, wiring issues, or a problem with the sensor's heater circuit.
4. How can I diagnose the OBDII code P0051 on my 2011 Nissan Pathfinder?
Diagnosing OBDII code P0051 on a 2011 Nissan Pathfinder involves checking the air fuel ratio sensor's wiring, testing the sensor's resistance, and inspecting the heater circuit for any faults.
5. Can I continue driving my 2011 Nissan Pathfinder with OBDII code P0051?
It is not recommended to continue driving your 2011 Nissan Pathfinder with OBDII code P0051 as it can lead to decreased fuel efficiency and potential damage to the vehicle's engine.
6. How can I repair OBDII code P0051 on a 2011 Nissan Pathfinder?
Repairing OBDII code P0051 on a 2011 Nissan Pathfinder involves replacing the faulty Air Fuel Ratio Sensor 1 in Bank 2 and addressing any wiring or circuit issues causing the fault.
7. Is it possible to reset the OBDII code P0051 on my 2011 Nissan Pathfinder without repairing it?
While you can clear the code temporarily, it is essential to address the underlying issue causing OBDII code P0051 on your 2011 Nissan Pathfinder to prevent further problems.
8. Can a DIY enthusiast fix OBDII code P0051 on a 2011 Nissan Pathfinder?
A DIY enthusiast with the necessary tools and knowledge may be able to fix OBDII code P0051 on a 2011 Nissan Pathfinder by following repair guides and procedures carefully.
9. How much does it cost to repair OBDII code P0051 on a 2011 Nissan Pathfinder?
The cost of repairing OBDII code P0051 on a 2011 Nissan Pathfinder can vary depending on the extent of the issue, but it typically involves the cost of a new Air Fuel Ratio Sensor 1 and any necessary wiring repairs.
10. Are there any maintenance tips to prevent OBDII code P0051 in a 2011 Nissan Pathfinder?
Regularly maintaining your 2011 Nissan Pathfinder, including checking the sensors and wiring, can help prevent issues like OBDII code P0051 from occurring.
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