P0051 2010 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 2010 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 2010 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 2010 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 2010 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 2010 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 2010 Nissan Pathfinder code?
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Frequently Asked Questions about P0051 2010 Nissan Pathfinder Code
1. What are common symptoms of OBDII code P0051 in a 2010 Nissan Pathfinder?
- Common symptoms of code P0051 may include poor fuel economy, rough idling, engine misfires, and an illuminated check engine light.
2. What does the OBDII code P0051 indicating "Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit Low" mean?
- The code P0051 indicates a malfunction in the control circuit of the heater for the air fuel ratio sensor 1 in bank 2 of the vehicle.
3. What are possible causes of OBDII code P0051 in a 2010 Nissan Pathfinder?
- Possible causes of code P0051 include a faulty air fuel ratio sensor, damaged wiring or connectors, a blown fuse, or a problem with the engine control module (ECM).
4. How can I diagnose the cause of OBDII code P0051 in my 2010 Nissan Pathfinder?
- To diagnose code P0051, you can use an OBDII scanner to retrieve the code, visually inspect the sensor and its connections, check for damaged wiring, and test the heater circuit for proper voltage and resistance.
5. Can I continue driving my 2010 Nissan Pathfinder with OBDII code P0051 present?
- It is not recommended to continue driving with code P0051 present, as it can lead to potential engine performance issues and may cause further damage to the vehicle's components.
6. How can I repair OBDII code P0051 in my 2010 Nissan Pathfinder?
- Repairing code P0051 typically involves replacing the air fuel ratio sensor, checking and repairing any damaged wiring or connectors, and resetting the ECM after completing the repair.
7. Are there any DIY tips for fixing OBDII code P0051 in a 2010 Nissan Pathfinder?
- While some DIY enthusiasts may attempt to replace the air fuel ratio sensor themselves, it is recommended to seek professional help for diagnosing and repairing code P0051 to ensure proper installation and resolution.
8. How much does it cost to repair OBDII code P0051 in a 2010 Nissan Pathfinder at a mechanic or dealership?
- The cost of repairing code P0051 at a mechanic or dealership may vary depending on the location, parts required, and labor rates, but it can typically range from $200 to $500.
9. Will resetting the check engine light resolve OBDII code P0051 in my 2010 Nissan Pathfinder?
- Simply resetting the check engine light will not resolve code P0051. The underlying issue causing the code must be diagnosed and repaired to prevent the light from coming back on.
10. How often does OBDII code P0051 occur in 2010 Nissan Pathfinders?
- While the occurrence of code P0051 can vary, it is not an uncommon issue in 2010 Nissan Pathfinders, especially as the vehicle ages and components wear out. Regular maintenance and timely repairs can help prevent such codes from appearing.
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