P0720 2012 Ford Fusion Code - Output Shaft Speed Sensor Circuit Malfunction
Quick Answer
The P0720 code on a 2012 Ford Fusion indicates a malfunction in the output shaft speed sensor circuit. Common causes include Faulty Sensor: The output shaft speed sensor itself may be faulty, either due to wear and tear or electrical issues, Wiring Issues: Damage to the wiring harness connected to the sensor, such as fraying or corrosion, can disrupt the signal transmission, Poor Connection: A loose or poor connection between the sensor and the ECM can lead to intermittent signal loss. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0720 2012 Ford Fusion indicates Output Shaft Speed Sensor Circuit Malfunction.
- Common causes
- Common causes include Faulty Sensor: The output shaft speed sensor itself may be faulty, either due to wear and tear or electrical issues, Wiring Issues: Damage to the wiring harness connected to the sensor, such as fraying or corrosion, can disrupt the signal transmission, Poor Connection: A loose or poor connection between the sensor and the ECM can lead to intermittent signal loss.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0720 2012 Ford Fusion Description
The P0720 code on a 2012 Ford Fusion indicates a malfunction in the output shaft speed sensor circuit. The output shaft speed sensor is a crucial component of the vehicle's transmission system, responsible for monitoring the speed of the transmission's output shaft. This information is used by the engine control module (ECM) to calculate shift points and ensure smooth gear changes. When this sensor malfunctions, it can lead to various performance issues and potentially cause long-term damage to the transmission.
Common Causes of P0720 2012 Ford Fusion
- Faulty Sensor: The output shaft speed sensor itself may be faulty, either due to wear and tear or electrical issues.
- Wiring Issues: Damage to the wiring harness connected to the sensor, such as fraying or corrosion, can disrupt the signal transmission.
- Poor Connection: A loose or poor connection between the sensor and the ECM can lead to intermittent signal loss.
- ECM Malfunction: A malfunction in the engine control module can also trigger the P0720 code, as the ECM relies on accurate speed data for proper transmission function.
- Transmission Fluid Contamination: Contaminated transmission fluid can affect the sensor's performance and trigger the code.
Symptoms of P0720 2012 Ford Fusion
- Check Engine Light: The most common symptom associated with the P0720 code is the illumination of the check engine light on the dashboard.
- Erratic Shifting: The vehicle may experience erratic shifting patterns, such as delayed or harsh shifts, due to incorrect speed data being provided to the ECM.
- Loss of Power: The vehicle may experience a loss of power or reduced acceleration due to the transmission not receiving accurate speed information.
- Transmission Slipping: The transmission may slip or fail to engage properly, leading to a lack of responsiveness or jerky movements.
- Stalling: In severe cases, the vehicle may stall or have difficulty starting if the output shaft speed sensor issue is not addressed promptly.
How to Fix P0720 2012 Ford Fusion
- Diagnostic Scan: Begin by using a diagnostic scanner to retrieve the specific error codes and confirm the P0720 code related to the output shaft speed sensor.
- Sensor Replacement: Replace the output shaft speed sensor with a new, OEM-quality sensor, ensuring proper installation and connection.
- Check Wiring: Inspect the wiring harness for any damage or corrosion, repairing or replacing any faulty wiring as needed.
- Clear Codes: After repairing the issue, clear the error codes from the ECM using the diagnostic scanner to reset the system.
- Test Drive: Take the vehicle for a test drive to ensure the transmission is functioning properly and that the code does not reappear.
Cost to Fix P0720 2012 Ford Fusion
The cost estimate for resolving the P0720 code on a 2012 Ford Fusion can vary depending on the specific cause of the issue. However, as a rough estimate, the parts required for this repair, such as the output shaft speed sensor, can range from $50 to $150. Labor costs at an auto repair shop can range from $100 to $300, depending on the shop's hourly rates and the complexity of the repair.
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Frequently Asked Questions about P0720 2012 Ford Fusion Code
1. What does the OBDII code P0720 mean for a 2012 Ford Fusion?
P0720 indicates a malfunction in the Output Shaft Speed (OSS) Sensor circuit, which monitors the rotational speed of the transmission's output shaft.
2. What are the common symptoms of code P0720 in a 2012 Ford Fusion?
Symptoms may include erratic or harsh shifting, the transmission failing to shift properly, reduced fuel efficiency, or the speedometer not functioning correctly.
3. What causes the P0720 code in a 2012 Ford Fusion?
Common causes include a faulty OSS sensor, damaged wiring or connections in the OSS sensor circuit, a malfunctioning powertrain control module (PCM), or low transmission fluid.
4. Can driving with code P0720 damage my 2012 Ford Fusion?
Driving with this code can lead to further damage to the transmission or drivetrain if left unresolved, as improper shifting may strain components.
5. How do I fix the P0720 code on a 2012 Ford Fusion?
Repairs may involve replacing the OSS sensor, repairing damaged wiring or connectors, addressing transmission fluid issues, or reprogramming or replacing the PCM if necessary.
6. Where is the Output Shaft Speed Sensor located in a 2012 Ford Fusion?
The OSS sensor is typically located on the transmission housing, near the output shaft.
7. How can I diagnose the P0720 code on my 2012 Ford Fusion?
Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the OSS sensor and wiring for damage, testing the sensor with a multimeter, and checking the transmission fluid level and condition.
8. Is the P0720 code specific to the 2012 Ford Fusion?
No, the P0720 code is a generic OBDII code that can appear on many vehicles, but the specific causes and repairs may vary by make and model.
9. How much does it cost to fix the P0720 code on a 2012 Ford Fusion?
Repair costs can range from $100 to $400 depending on whether you need to replace the OSS sensor, repair wiring, or address related issues.
10. Can low transmission fluid cause the P0720 code in a 2012 Ford Fusion?
Yes, low or contaminated transmission fluid can affect the OSS sensor's performance and trigger the P0720 code.
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