P0051 2007 Nissan Maxima 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 2007 Nissan Maxima 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 2007 Nissan Maxima 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 2007 Nissan Maxima?
- 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 2007 Nissan Maxima?
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 2007 Nissan Maxima 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 2007 Nissan Maxima Code
1. What does OBDII code P0051 on a 2007 Nissan Maxima indicate?
- It indicates a problem with the Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit being low.
2. What are common symptoms of a P0051 error code on a 2007 Nissan Maxima?
- Common symptoms include poor fuel economy, rough idling, and a possible decrease in engine performance.
3. What are possible causes of the P0051 code on a 2007 Nissan Maxima?
- The code can be triggered by a faulty air fuel ratio sensor, damaged wiring, or a blown fuse related to the heater circuit.
4. How can I diagnose the P0051 code on my 2007 Nissan Maxima?
- Use an OBDII scanner to retrieve the code, then inspect the wiring, sensor connections, and fuses related to the air fuel ratio sensor.
5. Can I continue to drive my 2007 Nissan Maxima with a P0051 error code?
- It is not recommended to drive the vehicle with a P0051 code as it can lead to decreased engine performance and potential damage.
6. How can I repair the P0051 code on a 2007 Nissan Maxima?
- Repair options include replacing the air fuel ratio sensor, repairing damaged wiring, or replacing blown fuses in the heater circuit.
7. Is it necessary to reset the OBDII system after fixing a P0051 code on a 2007 Nissan Maxima?
- Yes, it is recommended to reset the OBDII system after fixing the issue to clear the error code and ensure proper functioning.
8. Can a DIY enthusiast fix the P0051 code on a 2007 Nissan Maxima?
- While some fixes like checking connections and fuses can be done by DIY enthusiasts, replacing the air fuel ratio sensor may require professional help.
9. How much does it cost to repair a P0051 code on a 2007 Nissan Maxima?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $200 to $500 including parts and labor.
10. How often does the P0051 code occur in a 2007 Nissan Maxima?
- The P0051 code can occur sporadically or persistently depending on the severity of the issue, and it should be addressed promptly to avoid further damage.
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