AutoCodes – Nissan – P0158 2005 Nissan Pathfinder

P0158 2005 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 2005 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 6,064

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 2005 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 2005 Nissan Pathfinder - HO2S22 Circuit High Voltage - AutoCodes.com — P0158 2005 Nissan Pathfinder Code - HO2S22 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0158 2005 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 2005 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 2005 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 2005 Nissan Pathfinder code?

Need more information on how to fix the P0158 2005 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0158 2005 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 2005 Nissan Pathfinder Code

1. What does the OBDII code P0158 for a 2005 Nissan Pathfinder indicate?

- The code P0158 refers to a high voltage condition in the HO2S22 (heated oxygen sensor 2, bank 2) circuit of the vehicle.

2. What are the common symptoms associated with OBDII code P0158 in a 2005 Nissan Pathfinder?

- Common symptoms may include poor fuel economy, rough idling, engine hesitation, and an illuminated check engine light.

3. What are the potential causes of the HO2S22 Circuit High Voltage code P0158 in a 2005 Nissan Pathfinder?

- Possible causes can include a faulty oxygen sensor, wiring issues, exhaust leaks, a malfunctioning catalytic converter, or an issue with the engine's fuel system.

4. How can I diagnose the OBDII code P0158 in my 2005 Nissan Pathfinder?

- To diagnose the issue, you may need to use an OBDII scanner to retrieve the specific trouble code, inspect the oxygen sensor and related wiring, and check for any exhaust leaks.

5. Can I drive my 2005 Nissan Pathfinder with the OBDII code P0158 present?

- It is generally not recommended to drive with a P0158 code as it can lead to decreased fuel efficiency and potential damage to the catalytic converter over time.

6. How can I repair the HO2S22 Circuit High Voltage issue in my 2005 Nissan Pathfinder?

- Repair options may include replacing the oxygen sensor, repairing any damaged wiring, fixing exhaust leaks, or addressing issues with the fuel system components.

7. Is it possible to reset the check engine light after resolving the P0158 code in a 2005 Nissan Pathfinder?

- Yes, after the underlying issue causing the code has been fixed, you can reset the check engine light using an OBDII scanner or disconnecting the car battery for a few minutes.

8. Can a DIY enthusiast fix the OBDII code P0158 in a 2005 Nissan Pathfinder?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to address the P0158 code by following diagnostic procedures and making necessary repairs.

9. How much does it cost to repair the HO2S22 Circuit High Voltage issue in a 2005 Nissan Pathfinder?

- The cost of repairing a P0158 code can vary based on the specific cause of the issue, but it may involve expenses for parts, labor, and diagnostic services.

10. How often should the oxygen sensors be checked and replaced in a 2005 Nissan Pathfinder to prevent OBDII code P0158?

- It is recommended to inspect the oxygen sensors during regular maintenance intervals and replace them as needed to help prevent issues like the P0158 code from occurring.