P0137 2009 Ford Fusion Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
Quick Answer
The Powertrain Control Module (PCM) monitors the heated oxygen sensor (HO2S) for a circuit concern. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 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
- P0137 2009 Ford Fusion indicates O2 Sensor Circuit Low Voltage Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 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 P0137 2009 Ford Fusion Description
What are the Possible Causes of the DTC P0137 2009 Ford Fusion?
- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
How to Fix the DTC P0137 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 P0137 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.
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Frequently Asked Questions about P0137 2009 Ford Fusion Code
1. What does OBDII code P0137 for a 2009 Ford Fusion mean?
- This code indicates a low voltage condition in the O2 sensor circuit of Bank 1 Sensor 2, specifically the downstream sensor on the same side as the number one cylinder.
2. What are the common symptoms of O2 sensor circuit low voltage (P0137) in a 2009 Ford Fusion?
- Common symptoms include poor fuel economy, rough idling, failed emissions test, and the illumination of the check engine light.
3. What can cause the O2 sensor circuit low voltage code (P0137) in a 2009 Ford Fusion?
- Possible causes include a faulty O2 sensor, damaged wiring, exhaust leaks near the sensor, a failing catalytic converter, or issues with the engine's air-fuel mixture.
4. How can I diagnose the O2 sensor circuit low voltage issue (P0137) in my 2009 Ford Fusion?
- Diagnosing this code typically involves checking the sensor's wiring for damage, inspecting the sensor for physical damage, verifying proper sensor operation, and evaluating the exhaust system for leaks.
5. Can I continue driving my 2009 Ford Fusion with the P0137 OBDII code?
- It is generally not recommended to ignore this code, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter over time.
6. How can I repair the O2 sensor circuit low voltage issue (P0137) in my 2009 Ford Fusion?
- Repair options may include replacing the Bank 1 Sensor 2 oxygen sensor, repairing damaged wiring, fixing exhaust leaks, or addressing underlying issues affecting the air-fuel ratio.
7. Is it possible to reset the OBDII code P0137 in a 2009 Ford Fusion without fixing the underlying issue?
- While clearing the code may temporarily turn off the check engine light, it will not resolve the underlying problem causing the low voltage condition in the O2 sensor circuit.
8. Will a faulty O2 sensor always trigger the P0137 code in a 2009 Ford Fusion?
- While a faulty O2 sensor is a common cause of this code, other factors such as wiring issues, exhaust leaks, or catalytic converter problems can also trigger the P0137 OBDII code.
9. How much does it typically cost to repair the O2 sensor circuit low voltage issue (P0137) in a 2009 Ford Fusion?
- The cost of repair can vary depending on the specific cause of the issue, but generally, replacing the oxygen sensor or addressing wiring problems can range from $100 to $300 or more.
10. Can I fix the O2 sensor circuit low voltage problem (P0137) in my 2009 Ford Fusion myself?
- While some DIY enthusiasts may be able to replace the oxygen sensor or repair wiring themselves, diagnosing and fixing this issue may require specialized tools and expertise, so professional help is often recommended.
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