P0135 2012 Ford Fusion Code - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
Quick Answer
During testing the heated oxygen sensor (HO2S) heaters are checked for open and short circuits and excessive current draw. Common causes include Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications, Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse. 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
- P0135 2012 Ford Fusion indicates O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1.
- Common causes
- Common causes include Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications, Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse.
- 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 P0135 2012 Ford Fusion Description
What are the Possible Causes of the DTC P0135 2012 Ford Fusion?
- Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications
- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0135 2012 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 P0135 2012 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 P0135 2012 Ford Fusion code?
Need more information on how to fix the P0135 2012 Ford Fusion code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0135 2012 Ford Fusion code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0135 2012 Ford Fusion Code
1. What is the OBDII code P0135 on a 2012 Ford Fusion?
The code P0135 indicates an O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 error.
2. What are the common symptoms of OBDII code P0135 in a 2012 Ford Fusion?
Common symptoms include poor fuel efficiency, rough idling, engine hesitation, and illuminated check engine light.
3. What causes the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 error in a 2012 Ford Fusion?
Possible causes include a faulty oxygen sensor, damaged wiring or connectors, blown fuse, or issues with the vehicle's computer system.
4. How can I diagnose the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 issue on my 2012 Ford Fusion?
You can use a diagnostic scanner to retrieve the specific trouble code, check the oxygen sensor's wiring and connectors for damage, and test the sensor's heater circuit for continuity.
5. Can I still drive my 2012 Ford Fusion with the P0135 code?
It is generally safe to drive with this code, but you may experience reduced fuel efficiency and performance until the issue is resolved.
6. How do I repair the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 error on my 2012 Ford Fusion?
Repair options include replacing the faulty oxygen sensor, repairing damaged wiring or connectors, checking and replacing fuses if necessary, and clearing the trouble code.
7. Is it possible to reset the OBDII code P0135 on a 2012 Ford Fusion without fixing the issue?
While you can clear the code temporarily, it will likely reappear if the underlying problem is not addressed.
8. How much does it cost to fix the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 error on a 2012 Ford Fusion?
The cost of repair can vary depending on the exact cause of the issue, but it may range from $150 to $400 or more, including parts and labor.
9. Can a DIY enthusiast fix the P0135 code on a 2012 Ford Fusion?
If you have the necessary tools, skills, and access to the correct replacement parts, you may be able to fix the issue yourself. However, professional diagnosis and repair are recommended for complex electrical issues.
10. Will the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 error affect my 2012 Ford Fusion's emissions?
Yes, a malfunctioning oxygen sensor can lead to increased emissions, potentially causing your vehicle to fail emissions tests. It is advisable to address the issue promptly to ensure compliance with emission regulations.
Discuss the causes and fixes for P0135 2012 Ford Fusion OBDII Code
Code P0135 2012 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.
