P0158 2009 Ford Fusion Code - O2 Sensor Circuit High Voltage Bank 2 Sensor 2
Quick Answer
The heated oxygen sensor (HO2S) signals are monitored for an over voltage condition. 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 2009 Ford Fusion indicates O2 Sensor Circuit High Voltage Bank 2 Sensor 2.
- 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.
Code P0158 2009 Ford Fusion Description
What are the Possible Causes of the DTC P0158 2009 Ford Fusion?
- 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 2009 Ford Fusion?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0158 2009 Ford Fusion 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 2009 Ford Fusion code?
Need more information on how to fix the P0158 2009 Ford Fusion code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0158 2009 Ford Fusion code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0158 2009 Ford Fusion Code
1. What does the OBDII code P0158 for a 2009 Ford Fusion mean?
- The code P0158 indicates an issue with the O2 sensor circuit high voltage on Bank 2 Sensor 2 in the exhaust system of the vehicle.
2. What are the common symptoms of O2 sensor circuit high voltage Bank 2 Sensor 2 issue?
- Common symptoms include poor fuel economy, rough idling, engine misfires, and the illumination of the check engine light.
3. What are the possible causes of the P0158 code in a 2009 Ford Fusion?
- Potential causes include a faulty O2 sensor, damaged wiring or connectors in the O2 sensor circuit, exhaust leaks, or a malfunctioning engine control module (ECM).
4. How can I diagnose the O2 sensor circuit high voltage issue on Bank 2 Sensor 2 myself?
- You can use a multimeter to test the O2 sensor's voltage output, visually inspect the sensor and its wiring for damage, and check for any exhaust leaks near the sensor.
5. Can I continue driving my 2009 Ford Fusion with the P0158 code present?
- While the vehicle may still be drivable with the code, it is recommended to address the issue promptly to prevent further damage and ensure optimal performance.
6. How do I repair the O2 sensor circuit high voltage Bank 2 Sensor 2 problem in my 2009 Ford Fusion?
- The typical repair involves replacing the faulty O2 sensor, repairing damaged wiring or connectors, fixing any exhaust leaks, or reprogramming the ECM if necessary.
7. Are there any tips to prevent the recurrence of the P0158 code in my Ford Fusion?
- Regularly maintaining your vehicle, using quality fuel, and avoiding harsh driving conditions can help prevent the O2 sensor circuit high voltage issue from reoccurring.
8. Is it safe to reset the check engine light after fixing the P0158 code on my 2009 Ford Fusion?
- Yes, once the underlying issue causing the P0158 code is resolved, you can safely reset the check engine light using an OBDII scanner to clear the code.
9. What is the estimated cost of repairing the O2 sensor circuit high voltage Bank 2 Sensor 2 issue on a 2009 Ford Fusion?
- The cost of repair can vary depending on the exact cause of the problem, but it typically ranges from $200 to $500, including parts and labor.
10. Can a DIY enthusiast with basic mechanical skills fix the P0158 code issue in a 2009 Ford Fusion?
- While some aspects of diagnosing and repairing the O2 sensor circuit high voltage problem can be done by a DIY enthusiast, it is recommended to consult a professional for accurate diagnosis and proper repair to ensure the issue is fully resolved.
Discuss the causes and fixes for P0158 2009 Ford Fusion OBDII Code
Code P0158 2009 Ford Fusion comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
