Engine-Codes.com
Engine-Codes – Nissan – P0158 2009 Nissan Pathfinder

P0158 2009 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

Quick Answer

The P0158 diagnostic trouble code (DTC) for a 2009 Nissan Pathfinder indicates that there is a high voltage condition in the HO2S22 (Heated Oxygen Sensor 2 Bank 2) circuit. Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leaks. 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
P0158 2009 Nissan Pathfinder indicates HO2S22 Circuit High Voltage.
Common causes
Common causes include Faulty oxygen sensor, Damaged wiring or connectors in the sensor circuit, Vacuum leaks.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0158 2009 Nissan Pathfinder Description

The P0158 diagnostic trouble code (DTC) for a 2009 Nissan Pathfinder indicates that there is a high voltage condition in the HO2S22 (Heated Oxygen Sensor 2 Bank 2) circuit. This sensor is responsible for monitoring the oxygen levels in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. When the voltage in the circuit is higher than normal, it can lead to incorrect fuel trim adjustments, affecting the engine's performance and emissions.

OBDII Code P0158 2009 Nissan Pathfinder - HO2S22 Circuit High Voltage
P0158 2009 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

Common Causes of P0158 2009 Nissan Pathfinder

  1. Faulty oxygen sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Vacuum leaks
  4. Exhaust system leaks
  5. ECM malfunction

Symptoms of P0158 2009 Nissan Pathfinder

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Hesitation during acceleration
  4. Check Engine Light illuminated
  5. Increased emissions

How to Fix P0158 2009 Nissan Pathfinder

  1. Use an OBD-II scanner to confirm the P0158 code and identify the specific sensor causing the issue.
  2. Inspect the wiring and connectors in the HO2S22 circuit for any damage or corrosion.
  3. Test the oxygen sensor's voltage output to determine if it is functioning within specifications.
  4. Replace the oxygen sensor if it is found to be faulty, ensuring proper installation and connection.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0158 2009 Nissan Pathfinder

The typical repair costs for addressing a P0158 code in a 2009 Nissan Pathfinder can range from $150 to $400, including the cost of a new oxygen sensor and labor for diagnosis and installation. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to check local rates for a more accurate estimate before proceeding with the repair.

What does this mean?

Tech Notes for P0158 2009 Nissan Pathfinder

Replacing the Rear Heated Oxygen Sensor Bank 2 usually takes care of the problem.

When is the Code Detected?

The P0158 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively high for an extended period of time.

Need more information about the P0158 2009 Nissan Pathfinder code?

Need more information on how to fix the P0158 2009 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0158 2009 Nissan Pathfinder code diagnosed by a professional: Find a repair shop in your area

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 P0158 2009 Nissan Pathfinder Code

1. What does the OBDII code P0158 on a 2009 Nissan Pathfinder mean?

This code, HO2S22 Circuit High Voltage, indicates a problem with the oxygen sensor (HO2S) bank 2 sensor 2 in the exhaust system.

2. What are some common symptoms of the P0158 code in a 2009 Nissan Pathfinder?

Common symptoms include poor fuel economy, rough idling, engine misfires, and an illuminated check engine light on the dashboard.

3. What are possible causes of the P0158 code in a 2009 Nissan Pathfinder?

Potential causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, or issues with the engine's air-fuel mixture.

4. How can I diagnose the P0158 code on my 2009 Nissan Pathfinder?

Diagnosing the P0158 code typically involves using an OBDII scanner to retrieve the code, inspecting the oxygen sensor and its wiring, and checking for any exhaust leaks in the system.

5. Can I still drive my 2009 Nissan Pathfinder with the P0158 code present?

It is not recommended to drive your vehicle with the P0158 code present, as it can lead to decreased fuel efficiency and potentially cause damage to the engine over time.

6. How can I repair the P0158 code on my 2009 Nissan Pathfinder?

Repairing the P0158 code may involve replacing the oxygen sensor, repairing any damaged wiring or connectors, fixing exhaust leaks, or addressing any issues with the air-fuel mixture.

7. Is it possible to clear the P0158 code on a 2009 Nissan Pathfinder without fixing the underlying issue?

While you can clear the code with an OBDII scanner, it is essential to address the underlying problem to prevent the issue from recurring.

8. How much does it typically cost to fix the P0158 code on a 2009 Nissan Pathfinder?

The cost of fixing the P0158 code can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

9. How often should I replace the oxygen sensors in my 2009 Nissan Pathfinder?

Oxygen sensors typically last around 100,000 miles, but it is a good idea to inspect them regularly and replace them as needed to maintain optimal engine performance.

10. Can I prevent the P0158 code from appearing in the future on my 2009 Nissan Pathfinder?

Regular maintenance, such as checking for exhaust leaks, ensuring proper engine tune-up, and using high-quality fuel, can help prevent the recurrence of the P0158 code.

Discuss the causes and fixes for P0158 2009 Nissan Pathfinder OBDII Code

Submit a New Comment

Code P0158 2009 Nissan Pathfinder comments

No comments found for this page.