AutoCodes – Nissan – P1051 2005 Nissan Maxima

P1051 2005 Nissan Maxima Code - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 2

Quick Answer

The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F) sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element at the specified range. Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1051 2005 Nissan Maxima indicates Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 2.
Common causes: Common causes include Faulty Air Fuel Ratio Sensor 1 Bank 2, Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted, Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 10,047

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 06, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1051 2005 Nissan Maxima Description

OBDII Code P1051 2005 Nissan Maxima - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 2 - AutoCodes.com — P1051 2005 Nissan Maxima Code - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 2

What does this mean?

What are the Possible Causes of the DTC P1051 2005 Nissan Maxima?

Faulty Air Fuel Ratio Sensor 1 Bank 2
Air Fuel Ratio Sensor 1 Bank 2 harness is open or shorted
Air Fuel Ratio Sensor 1 Bank 2 circuit poor electrical connection

How to Fix the DTC P1051 2005 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 P1051 2005 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.

Need more information about the P1051 2005 Nissan Maxima code?

Need more information on how to fix the P1051 2005 Nissan Maxima code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1051 2005 Nissan Maxima Code

1. What are the common symptoms of OBDII code P1051 on a 2005 Nissan Maxima?

The common symptoms of code P1051 include rough idling, poor fuel economy, lack of power, and the illumination of the Check Engine Light.

2. What does the OBDII code P1051 "Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 2" mean?

This code indicates that there is a problem with the heater control circuit of the air fuel ratio sensor 1 on bank 2 of the engine.

3. What are the possible causes of OBDII code P1051 on a 2005 Nissan Maxima?

Possible causes of code P1051 include a faulty air fuel ratio sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).

4. How can I diagnose the OBDII code P1051 on my 2005 Nissan Maxima?

Diagnosing code P1051 typically involves checking the sensor's wiring and connectors, testing the sensor's heater element resistance, and inspecting the fuse related to the sensor's heater circuit.

5. Can I drive my 2005 Nissan Maxima with OBDII code P1051?

It is not recommended to drive your vehicle with a persistent P1051 code, as it can affect engine performance and fuel efficiency. It is best to address the underlying issue promptly.

6. How can I repair OBDII code P1051 on my 2005 Nissan Maxima?

Repairing code P1051 often involves replacing the faulty air fuel ratio sensor, repairing damaged wiring or connectors, and ensuring the heater circuit is functioning properly.

7. Will resetting the Check Engine Light resolve OBDII code P1051 on my 2005 Nissan Maxima?

Resetting the Check Engine Light may temporarily turn it off, but the underlying issue causing code P1051 will persist until properly diagnosed and repaired.

8. Can a DIY enthusiast fix OBDII code P1051 on a 2005 Nissan Maxima?

While some may be able to diagnose and repair code P1051 themselves, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.

9. How much does it cost to repair OBDII code P1051 on a 2005 Nissan Maxima?

The cost of repairing code P1051 can vary depending on the specific issue and whether you choose to do it yourself or seek professional help. Costs may include parts and labor.

10. How often does OBDII code P1051 occur in 2005 Nissan Maximas?

Code P1051 may occur infrequently in 2005 Nissan Maximas, but it is essential to address it promptly to prevent potential damage to the vehicle's engine and emissions system.