The P0720 code on a Ford F150 is a generic powertrain code that indicates a problem with the Output Speed Sensor (OSS) circuit. This code is specific to automatic transmission equipped vehicles.
The OSS is responsible for measuring the output speed of the transmission and sending this information to the engine control module (ECM). The ECM uses this information to control shift timing and other transmission functions.
P0720 code on a Ford F150
When the ECM detects an issue with the OSS circuit, it will set the P0720 code and illuminate the check engine light. This can be caused by a faulty sensor, wiring issues, or a malfunctioning ECM.
To diagnose the cause of the P0720 code, a technician will typically use a scan tool to retrieve the code and check for any related codes or freeze frame data. They will then perform a visual inspection of the sensor and wiring, and may also perform a circuit test to check for continuity and voltage.
Once the cause of the code has been identified, the necessary repairs can be made. This may include replacing the sensor or repairing any damaged wiring. In some cases, the ECM may need to be replaced or reprogrammed.
It’s important to address this code as soon as possible, as driving with a malfunctioning OSS sensor can cause transmission shifting issues, reduced fuel economy, and potential damage to the transmission.
P0720 code on a Ford F150 possible causes
Table: P0720 code on a Ford F150 possible causes and comments
| Possible Causes | Comments |
|---|---|
| Faulty Output Speed Sensor (OSS) | The OSS may have failed or is malfunctioning, causing the P0720 code to appear. A faulty sensor can cause shifting issues and other transmission problems. |
| Wiring Issues | Damaged or broken wiring can cause the OSS circuit to malfunction, leading to the P0720 code. Wiring should be inspected for damage or wear and repaired as needed. |
| Failed Engine Control Module (ECM) | In rare cases, the ECM may have failed or become damaged, causing the P0720 code to appear. This is usually diagnosed after all other possible causes have been ruled out. |
| Failed Transmission Control Module (TCM) | The TCM may have failed, causing the P0720 code to appear. This is usually diagnosed after all other possible causes have been ruled out. |
| Failed Transmission | A failed transmission can cause the P0720 code to appear. If the transmission has failed, it will need to be replaced or rebuilt. |
| Other Codes Present | Other codes may be present along with the P0720 code, indicating additional issues with the transmission or related systems. These codes should also be addressed during diagnosis and repair. |
It’s important to note that these are just possible causes and that a proper diagnosis should be performed to accurately determine the cause of the P0720 code.
P0720 code on a Ford F150 Tech Note
Tech Note: When diagnosing a P0720 code on a Ford F150, it’s important to first verify that the transmission fluid level and condition are within specifications.
Low fluid level or contaminated fluid can cause transmission problems that may trigger the P0720 code. If the fluid level and condition are good, the Output Speed Sensor (OSS) and wiring should be inspected for damage or wear.
It’s also recommended to check for any other related codes or freeze frame data that may provide additional information about the issue. In some cases, the Engine Control Module (ECM) may need to be reprogrammed or replaced.
It’s important to address this code as soon as possible, as driving with a malfunctioning OSS sensor can cause transmission shifting issues, reduced fuel economy, and potential damage to the transmission.
P0720 code on a Ford F150 symptoms and solutions
Table: P0720 code on a Ford F150 symptoms and solutions
| Symptoms | Solutions |
|---|---|
| Illuminated Check Engine Light | The Check Engine Light will be illuminated when the P0720 code is triggered. A code reader or scan tool can be used to retrieve the code and diagnose the issue. |
| Transmission Shifting Issues | A malfunctioning Output Speed Sensor (OSS) can cause transmission shifting issues, such as delayed or erratic shifting. The OSS and wiring should be inspected and repaired as necessary. |
| Reduced Fuel Economy | When the OSS is malfunctioning, it can cause the transmission to shift improperly, leading to reduced fuel economy. Repairing the OSS or related wiring can help improve fuel economy. |
| Potential Damage to Transmission | Ignoring the P0720 code and continuing to drive the vehicle with a malfunctioning OSS can cause damage to the transmission. It’s important to address this issue as soon as possible to prevent costly repairs down the line. |
| Other Transmission-Related Issues | In some cases, the P0720 code may be accompanied by other transmission-related issues, such as slipping or hesitation during acceleration. These issues should be addressed during diagnosis and repair. |
It’s important to note that these are just some of the symptoms that may be associated with the P0720 code on a Ford F150, and that a proper diagnosis should be performed to accurately determine the cause of the code and the appropriate solution.
P0720 code on a Ford F150 description
The P0720 code on a Ford F150 is a generic powertrain code that indicates a problem with the Output Speed Sensor (OSS) circuit.
The OSS is responsible for measuring the output speed of the transmission and sending this information to the engine control module (ECM). The ECM uses this information to control shift timing and other transmission functions.
When the ECM detects an issue with the OSS circuit, it will set the P0720 code and illuminate the check engine light. This can be caused by a faulty sensor, wiring issues, or a malfunctioning ECM.
Symptoms of the P0720 code may include a illuminated check engine light, transmission shifting issues, reduced fuel economy, and potential damage to the transmission.
It’s important to address this code as soon as possible, as driving with a malfunctioning OSS sensor can cause transmission shifting issues, reduced fuel economy, and potential damage to the transmission. A proper diagnosis should be performed to accurately determine the cause of the code and the appropriate solution, which may include replacing the sensor, repairing wiring issues, or reprogramming or replacing the ECM.
How much does it cost to diagnose and fix the P0720 code on a Ford F150?
The cost to diagnose and fix the P0720 code on a Ford F150 can vary depending on several factors such as the severity of the problem, the age of the vehicle, and the location of the repair shop.
Generally, the cost of diagnosis can range from $50 to $150 or more, depending on the hourly rate of the repair shop and the complexity of the problem.
The cost of the repair itself will depend on the cause of the code, which could range from replacing a faulty sensor or repairing damaged wiring to replacing the ECM. The cost of parts can range from $50 to $500 or more, while the cost of labor can range from $100 to $500 or more depending on the amount of time required for the repair.
Overall, the total cost to diagnose and fix the P0720 code on a Ford F150 could range from $150 to $1000 or more. It’s always a good idea to get a written estimate from a reputable repair shop before authorizing any work to be done.
How to fix the P0720 code on a Ford F150?
Fixing the P0720 code on a Ford F150 will depend on the underlying cause of the issue. Here are some steps that may be taken to fix the code:
- Verify the code: Use a code scanner to retrieve the P0720 code from the vehicle’s computer. Make sure the code is accurate and not a false code.
- Inspect the OSS: Check the Output Speed Sensor (OSS) and wiring for damage or wear. Replace the sensor or wiring as necessary.
- Inspect other related components: Inspect the wiring and connections related to the OSS and the Transmission Control Module (TCM) for damage or wear.
- Test the sensor: Use a multimeter to test the OSS and ensure it is functioning properly. Check the resistance and voltage of the sensor to ensure it is within specifications.
- Replace the sensor: If the OSS is faulty, replace it with a new one. Follow the manufacturer’s instructions for installation.
- Reset the code: Once the repair has been made, clear the code using a code scanner. This will reset the vehicle’s computer and turn off the check engine light.
If the code persists after these steps have been taken, additional diagnostics may be required. It’s important to address the P0720 code as soon as possible, as driving with a malfunctioning OSS sensor can cause transmission shifting issues, reduced fuel economy, and potential damage to the transmission.
Takeaways
Here are some takeaways regarding the P0720 code on a Ford F150:
- The P0720 code on a Ford F150 is a generic powertrain code that indicates a problem with the Output Speed Sensor (OSS) circuit. The OSS is responsible for measuring the output speed of the transmission and sending this information to the engine control module (ECM).
- Symptoms of the P0720 code may include an illuminated check engine light, transmission shifting issues, reduced fuel economy, and potential damage to the transmission.
- Possible causes of the P0720 code may include a faulty sensor, wiring issues, or a malfunctioning ECM.
- Diagnosing the P0720 code will typically involve using a scan tool to retrieve the code and check for related codes or freeze frame data. The OSS and wiring will then be inspected for damage or wear, and the sensor may be tested using a multimeter.
- Fixing the P0720 code will depend on the underlying cause of the issue. This may involve replacing a faulty sensor, repairing damaged wiring, or reprogramming or replacing the ECM.
- The cost to diagnose and fix the P0720 code on a Ford F150 can vary depending on several factors such as the severity of the problem, the age of the vehicle, and the location of the repair shop.