AutoCodes – Ford – P0720 2001 Ford F150

P0720 2001 Ford F150 Code - Output Shaft Speed Sensor Circuit Malfunction

Quick Answer

The Output Shaft Speed (OSS) Sensor provides the Powertrain Control Module (PCM) with information about the rotational speed of an output shaft. Common causes include Faulty Output Speed Sensor (OSS), Output Speed Sensor harness is open or shorted, Output Speed Sensor circuit poor electrical connection. 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 2001 Ford F150 indicates Output Shaft Speed Sensor Circuit Malfunction.
Common causes: Common causes include Faulty Output Speed Sensor (OSS), Output Speed Sensor harness is open or shorted, Output Speed Sensor circuit poor electrical connection.
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 Popularity 6,428

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jul 13, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0720 2001 Ford F150 Description

The Output Shaft Speed (OSS) Sensor provides the Powertrain Control Module (PCM) with information about the rotational speed of an output shaft. The PCM uses the information to control and diagnose powertrain behavior. In some applications, the sensor is also used as the source of vehicle speed. The sensor may be physically located in different places on the vehicle, depending upon the specific application. The design of each speed sensor is unique and depends on which powertrain control feature uses the information that is generated. The Diagnostic Trouble Code (DTC) will set if the PCM detects an OSS sensor circuit malfunction.

OBDII Code P0720 2001 Ford F150 - Output Shaft Speed Sensor Circuit Malfunction - AutoCodes.com — P0720 2001 Ford F150 Code - Output Shaft Speed Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0720 2001 Ford F150?

Faulty Output Speed Sensor (OSS)
Output Speed Sensor harness is open or shorted
Output Speed Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0720 2001 Ford F150?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0720 2001 Ford F150 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0720 2001 Ford F150 Code

1. What does code P0720 mean on a 2001 Ford F150?

Code P0720 indicates an Output Shaft Speed Sensor Circuit Malfunction, which means the vehicle's powertrain control module (PCM) is not receiving proper signals from the output shaft speed (OSS) sensor.

2. What are the symptoms of a P0720 code on a 2001 Ford F150?

Symptoms may include erratic or harsh shifting, the transmission staying in limp mode, inaccurate speedometer readings, and the check engine light being illuminated.

3. What causes a P0720 code on a 2001 Ford F150?

Common causes include a faulty OSS sensor, damaged wiring or connections in the OSS sensor circuit, a failed PCM, or transmission problems such as a worn-out gear or internal failure.

4. How do I diagnose a P0720 code on my Ford F150?

Start by checking the OSS sensor and its wiring for damage, corrosion, or loose connections. Use a multimeter to test the sensor for continuity and proper voltage. If the sensor and wiring are fine, scan the PCM for additional codes.

5. Can I drive my 2001 Ford F150 with a P0720 code?

While the truck may still be drivable, ignoring the issue can lead to erratic shifting, further damage to the transmission, or unsafe driving conditions. Itâ€™s best to address the problem promptly.

6. How do I fix a P0720 code on a 2001 Ford F150?

Repairs may include replacing the OSS sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the PCM or addressing internal transmission issues.

7. Where is the output shaft speed sensor located on a 2001 Ford F150?

The OSS sensor is typically located on the transmission, near the output shaft or tail housing. Consult your vehicle's service manual for the exact location.

8. How much does it cost to fix a P0720 code on a Ford F150?

The cost varies depending on the repair. Replacing the OSS sensor typically ranges from $50 to $200, including parts and labor. Wiring or PCM repairs may cost more.

9. Can a dirty or low transmission fluid level cause a P0720 code?

While not a primary cause, dirty or low transmission fluid can contribute to transmission issues that may trigger related codes. Check and replace the fluid if needed.

10. Will clearing the P0720 code solve the problem?

Clearing the code without fixing the underlying issue may temporarily turn off the check engine light, but the code will likely return. Proper diagnosis and repair are necessary for a permanent fix.