AutoCodes – Nissan – P0158 2006 Nissan Pathfinder

P0158 2006 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

Quick Answer

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 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: P0158 2006 Nissan Pathfinder indicates HO2S22 Circuit High Voltage.
Common causes: Common causes include Faulty Rear Heated Oxygen Sensor Bank 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,365

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0158 2006 Nissan Pathfinder Description

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. The HO2S output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Engine Control Module (ECM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V.

OBDII Code P0158 2006 Nissan Pathfinder - HO2S22 Circuit High Voltage - AutoCodes.com — P0158 2006 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0158 2006 Nissan Pathfinder?

Faulty Rear Heated Oxygen Sensor Bank 2
Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks
Exhaust gas leaks

How to Fix the DTC P0158 2006 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 does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0158 2006 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 P0158 2006 Nissan Pathfinder code?

Need more information on how to fix the P0158 2006 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0158 2006 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 2006 Nissan Pathfinder Code

1. What does the OBDII code P0158 for a 2006 Nissan Pathfinder mean?

The code P0158 indicates a high voltage condition in the HO2S22 (Heated Oxygen Sensor 2 Bank 2) circuit of the vehicle.

2. What are the common symptoms of the P0158 code in a 2006 Nissan Pathfinder?

Common symptoms of the P0158 code can include poor fuel economy, engine misfires, rough idling, and the illumination of the check engine light on the dashboard.

3. What are the possible causes of the HO2S22 Circuit High Voltage code in a 2006 Nissan Pathfinder?

Possible causes of the P0158 code include a faulty oxygen sensor, wiring issues in the sensor circuit, exhaust leaks, or problems with the engine's air/fuel mixture.

4. How do I diagnose the P0158 code in my 2006 Nissan Pathfinder?

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

5. Can I continue driving my 2006 Nissan Pathfinder with the P0158 code present?

While you may be able to drive your vehicle with the P0158 code, it is recommended to address the issue promptly to prevent potential damage to the engine and ensure optimal fuel efficiency.

6. How can I repair the HO2S22 Circuit High Voltage code in my 2006 Nissan Pathfinder?

Repairing the P0158 code may involve replacing the faulty oxygen sensor, repairing damaged wiring, fixing any exhaust leaks, or addressing issues related to the air/fuel mixture.

7. Are there any DIY tips for fixing the P0158 code in a 2006 Nissan Pathfinder?

DIY tips for addressing the P0158 code include checking the oxygen sensor connections, inspecting the sensor for visible damage, and ensuring proper installation of a new sensor if needed.

8. Will resetting the check engine light resolve the P0158 code in my 2006 Nissan Pathfinder?

Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the P0158 code is not addressed, the code is likely to reappear.

9. How much does it typically cost to repair the HO2S22 Circuit High Voltage code in a 2006 Nissan Pathfinder?

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

10. Can a damaged oxygen sensor cause other problems in my 2006 Nissan Pathfinder besides triggering the P0158 code?

Yes, a damaged oxygen sensor can lead to other issues such as decreased fuel efficiency, increased emissions, engine performance problems, and potential damage to the catalytic converter over time.