P0720 Ford Code - Output Shaft Speed Sensor Circuit Malfunction
Quick Answer
The P0720 diagnostic trouble code (DTC) for Ford vehicles indicates a malfunction in the output shaft speed sensor circuit. Common causes include Faulty output shaft speed sensor, Damaged wiring harness or connectors, Issues with the TCM. 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 Ford indicates Output Shaft Speed Sensor Circuit Malfunction.
- Common causes
- Common causes include Faulty output shaft speed sensor, Damaged wiring harness or connectors, Issues with the TCM.
- 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 Ford Description
The P0720 diagnostic trouble code (DTC) for Ford vehicles indicates a malfunction in the output shaft speed sensor circuit. This sensor is responsible for monitoring the rotational speed of the output shaft in the transmission. The information gathered by the sensor is crucial for the transmission control module (TCM) to determine gear shifting points, torque converter lock-up, and other important functions related to the transmission system.
Common Causes of P0720 Ford
- Faulty output shaft speed sensor
- Damaged wiring harness or connectors
- Issues with the TCM
- Corrosion or contamination in the sensor circuit
- Electrical issues such as shorts or open circuits
Symptoms of P0720 Ford
- Erratic shifting patterns
- Harsh or delayed gear shifts
- Transmission slipping
- Transmission going into limp mode
- Check Engine Light illuminated
How to Fix P0720 Ford
- Begin by conducting a thorough diagnostic scan to confirm the P0720 code and identify any additional related codes.
- Inspect the output shaft speed sensor and its wiring harness for any visible damage or corrosion.
- Test the output shaft speed sensor using a multimeter to check for proper resistance and signal output.
- Replace the output shaft speed sensor if it is found to be faulty, ensuring proper installation and connection.
- Clear the DTC codes and perform a test drive to verify that the issue has been resolved.
Cost to Fix P0720 Ford
The typical repair costs for addressing a P0720 code can vary depending on the specific cause of the issue. In general, the cost of replacing the output shaft speed sensor can range from $100 to $300, including parts and labor. Additional costs may be incurred if there are wiring harness or TCM issues that need to be addressed. It is advisable to consult with a professional mechanic or auto repair shop to get a more accurate estimate based on your vehicle's make and model, as well as the local labor rates.
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Information for Specific Ford Models
- P0720 1997 Ford F150 — Output Shaft Speed Sensor Circuit Malfunction
- P0720 1998 Ford F150 — Output Shaft Speed Sensor Circuit Malfunction
- P0720 1999 Ford F150 — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2000 Ford F150 — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2001 Ford F150 — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2002 Ford F150 — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2003 Ford F150 — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2006 Ford Fusion — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2007 Ford Fusion — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2008 Ford Fusion — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2009 Ford Fusion — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2010 Ford Fusion — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2011 Ford Fusion — Output Shaft Speed Sensor Circuit Malfunction
- P0720 2012 Ford Fusion — Output Shaft Speed Sensor Circuit Malfunction
Frequently Asked Questions about P0720 Ford Code
1. What are the common symptoms of OBDII code P0720 in a Ford vehicle?
- Common symptoms include erratic or non-functioning speedometer, harsh shifting, stalling, and the Check Engine Light illuminating.
2. What could cause the P0720 code in a Ford car or truck?
- The code is typically triggered by a faulty output shaft speed sensor, damaged wiring or connectors, or issues with the transmission control module.
3. How can I diagnose the output shaft speed sensor circuit malfunction in my Ford vehicle?
- You can use a scan tool to read the OBDII code, visually inspect the sensor and its wiring, and perform a resistance test on the sensor to diagnose the issue.
4. Can I continue driving my Ford with the P0720 code present?
- It is not recommended to continue driving with the P0720 code as it can lead to transmission issues and potential safety hazards. It's best to address the problem promptly.
5. What are the repair options for fixing the output shaft speed sensor circuit malfunction in my Ford?
- Repair options include replacing the faulty speed sensor, repairing damaged wiring or connectors, and resetting the trouble code with a scan tool.
6. Is it possible to reset the P0720 code in a Ford without fixing the underlying issue?
- While you can reset the code temporarily, the issue will likely reoccur if the root cause, such as a faulty speed sensor, is not addressed.
7. How much does it typically cost to repair the P0720 code in a Ford vehicle?
- The cost of repair can vary depending on the specific model and the extent of the issue, but it generally ranges from $150 to $300 for parts and labor.
8. Can a DIY enthusiast fix the output shaft speed sensor circuit malfunction in a Ford?
- Depending on your skill level and access to tools, DIY enthusiasts can replace the speed sensor themselves, but diagnosing and repairing wiring issues may require professional help.
9. Will the P0720 code cause any long-term damage to my Ford vehicle if left unfixed?
- Ignoring the P0720 code can lead to transmission problems, reduced fuel efficiency, and potential damage to other components, so it's best to address it promptly.
10. How long does it typically take to repair the output shaft speed sensor circuit malfunction in a Ford?
- The repair process can take anywhere from 1 to 3 hours, depending on the accessibility of the sensor and the complexity of the wiring repair needed.
Discuss the causes and fixes for P0720 Ford OBDII Code
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I have a 2001 Southwind Motorhome with a V10 engine. I recently got the P0720 code when the transmission falters on takeoff. I replaced the speed censor and the problem continues. Any suggestions?
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What sensor did you replace? There are 2 sensor speed sensor. There is the speed sensor on the engine and one on the transmission. You need to replaced the sensor on the transmission, also called Output Speed Sensor.
Not a clear image, but I hope it helps: -
I replaced the output speed sensor just about a year ago on my 2006 ford f350 super duty 4wheel drive . This week the engine started missing and then stalled just after turning on. the check engine light came on and the p0720 error code came up. I read that it could be the wiring harness what would cause this sensor failure?
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I have a 04 f250 that keeps pylling a po720 code. I removed the wire harness and wire loom and inspected it and found no issues. I then replaced both sensors and the truck still continues to stall and pull the code. What else can I do to fix this issue?
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question: bad OPERATION make the starting Axis output sensor makes floor Stop ?
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malfunction in the starting shaft output sensor makes zafira stop walking?
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I am throwing this code (od off flashing). When i press the break while in park the speedo reads 15-20 mph. The break petal also feels different. This problem has come and gone.
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1999 F250 Super Duty crew cab 4x4 7.3L. Drove around today with no problems. All problems come and go together. Can't figure out why this makes my break petal feel different along with the speedo problem. I would think these two system are independent of each other. Must be bad sensor or wiring problem. Truck runs fine otherwise.
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I have a 2003 Ford mustang gt and these codes keeping coming - p0722 and p0720. Now I replaced the speed sensor and its still the same now when I'm going 25 the speedo is showing 75 idk what to do
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Which sensor did you replace? Usually replacing the sensor fixes the problem.

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VSS Or Speed Senor. Im getting code P0720 Car shifts 2, 3, 4 no problem. Its only happening at 1st gear and reverse.
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The P0420 code is for the Output Speed Sensor. The sensor is on top of the transmission. The below image shows the sensor cover on yellow, remove the cover and sensor is under the cover.
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I have this code on my mustang 07 i replace the OSS sensor but the problem still there
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Any other symptoms? misfire?
If the sensor didn't fix the problem and there are no other symptoms, then you could have a problem with the wire harness from the control unit to the sensor
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I have a 2013 FORD F-150 almost got me killed when travel at 70 mph and truck suddenly went from overdrive to 2nd gear and started wheel hopping and locked the back wheels and had to get to the shoulder to keep from getting killed. Finally a code came up P 0720 output speed sensor and took to the dealer I bought it from and they repaired customer pay for $987.00. I called Ford customer service and they knew of problem and said I was 3 months out from production date and opened a case. This has been over 2 months and still nothing from Ford.
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I like to know if is the speed sensor or the transmission is want to gone reply thanks
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I have a 2008 f150 P0720 output speed sensor code have inspected harness, replaced connector and sensor with no luck! Throws code as soon as you put it in gear and it starts misfiring at the same time. Any help is greatly appreciated it’s been to the dealer three times!
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