AutoCodes – Nissan – P0158 2012 Nissan Sentra

P0158 2012 Nissan Sentra 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 2012 Nissan Sentra 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.

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Code Popularity 2,756

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0158 2012 Nissan Sentra 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 2012 Nissan Sentra - HO2S22 Circuit High Voltage - AutoCodes.com — P0158 2012 Nissan Sentra Code - HO2S22 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0158 2012 Nissan Sentra?

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 2012 Nissan Sentra?

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 2012 Nissan Sentra 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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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 2012 Nissan Sentra Code

1. What does the OBDII code P0158 for a 2012 Nissan Sentra mean?

- This code, also known as HO2S22 Circuit High Voltage, indicates a high voltage condition in the oxygen sensor (O2 sensor) located after the catalytic converter on bank 2 of your Nissan Sentra's engine.

2. What are some common symptoms of the P0158 code in a 2012 Nissan Sentra?

- Typical symptoms include poor fuel economy, rough idling, engine hesitation, loss of power, and the illumination of the Check Engine Light on the dashboard.

3. What can cause the P0158 code to trigger in a 2012 Nissan Sentra?

- The most common causes of this code are a faulty oxygen sensor, wiring issues in the sensor circuit, exhaust leaks, or a malfunctioning engine control module (ECM).

4. How can I diagnose the P0158 code in my 2012 Nissan Sentra?

- Diagnosing the code involves using an OBDII scanner to retrieve the code, inspecting the wiring and connections of the oxygen sensor, checking for exhaust leaks, and testing the sensor's voltage output.

5. Can I continue driving my 2012 Nissan Sentra with the P0158 code present?

- It is not recommended to continue driving with the P0158 code active, as it can lead to reduced fuel efficiency, engine performance issues, and potential damage to the catalytic converter over time.

6. How can I repair the P0158 code on my 2012 Nissan Sentra?

- Repair options include replacing the affected oxygen sensor, repairing any damaged wiring or connections, fixing exhaust leaks, and resetting the ECM to clear the trouble code.

7. Should I replace the oxygen sensor myself to fix the P0158 code on my 2012 Nissan Sentra?

- If you have the necessary tools and experience, you can replace the oxygen sensor yourself. However, if you are unsure, it is recommended to seek professional help to ensure proper installation and diagnosis.

8. Is it necessary to reset the ECM after repairing the P0158 code on a 2012 Nissan Sentra?

- Yes, resetting the ECM after making repairs is essential to clear the trouble code and reset the system for proper monitoring of the oxygen sensor's performance.

9. How much does it typically cost to repair the P0158 code on a 2012 Nissan Sentra at a repair shop?

- The cost of repairing the P0158 code can vary depending on the exact cause of the issue, but it can range from $100 to $300 for parts and labor at a repair shop.

10. Can a faulty oxygen sensor cause other codes to trigger in a 2012 Nissan Sentra?

- Yes, a faulty oxygen sensor can cause other related codes to trigger, impacting the overall performance and emissions control system of the vehicle. Regular maintenance and prompt repairs are recommended.