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P0720 Jeep Code - Output Speed Sensor Circuit Malfunction

Quick Answer

The P0720 code for Jeep vehicles indicates a malfunction in the output speed sensor circuit. Common causes include Faulty output speed sensor, Damaged wiring or connectors in the output speed sensor circuit, Corrosion or contamination in the sensor's connections. 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 Jeep indicates Output Speed Sensor Circuit Malfunction.
Common causes
Common causes include Faulty output speed sensor, Damaged wiring or connectors in the output speed sensor circuit, Corrosion or contamination in the sensor's connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0720 Jeep Description

The P0720 code for Jeep vehicles indicates a malfunction in the output speed sensor circuit. This sensor is responsible for measuring the speed of the output shaft of the transmission. The information gathered by the output speed sensor is crucial for the proper operation of the transmission, as it helps the vehicle's computer system determine the appropriate shift points for optimal performance and fuel efficiency.

OBDII Code P0720 Jeep - Output Speed Sensor Circuit Malfunction
P0720 Jeep Code - Output Speed Sensor Circuit Malfunction

Common Causes of P0720 Jeep

  1. Faulty output speed sensor
  2. Damaged wiring or connectors in the output speed sensor circuit
  3. Corrosion or contamination in the sensor's connections
  4. Issues with the vehicle's computer system
  5. Transmission fluid leaks or low fluid levels affecting sensor performance

Symptoms of P0720 Jeep

  1. Harsh or delayed shifting
  2. Erratic shifting behavior
  3. Transmission slipping
  4. Limp mode activation
  5. Illumination of the Check Engine Light

How to Fix P0720 Jeep

  1. Begin by diagnosing the issue using a scan tool to confirm the P0720 code and identify the specific cause.
  2. Inspect the output speed sensor and its wiring for any visible damage, corrosion, or loose connections. Replace or repair components as needed.
  3. Clear the trouble code from the vehicle's computer system using the scan tool.
  4. Test drive the vehicle to ensure that the transmission is functioning properly and that the code does not reappear.
  5. If the issue persists, further diagnostics may be required to pinpoint the exact cause of the output speed sensor circuit malfunction.

Cost to Fix P0720 Jeep

The cost of repairing a P0720 code in a Jeep vehicle can vary depending on the specific cause of the issue and the labor rates in your area. In general, the parts required for this repair, such as a new output speed sensor or wiring harness, can range from $50 to $150. The labor costs for this repair may amount to $100 to $300, based on the time needed to diagnose and fix the problem. Keep in mind that additional costs for diagnostic tests or other potential repairs may also apply. It's recommended to consult with a qualified mechanic or repair shop to obtain a more accurate estimate for your particular situation.

What does this mean?

Tech Notes for P0720 Jeep

Jeep Grand Cherokee 4x4 ZJ P0720 OBD2 OBDII Error Code Output Shaft Speed Sensor Circuit Fix





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When is the Code Detected?

Diagnostic trouble code is detected when Transmission Control Module (TCM) does not receive the proper voltage signal from the sensor.

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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 Jeep Code

1. What are the common symptoms of OBDII code P0720 in a Jeep?

- Common symptoms include erratic speedometer readings, harsh shifting, stalling at idle, and the inability to shift gears properly.

2. What causes the OBDII code P0720 in a Jeep?

- The most common cause of this code is a faulty output speed sensor or issues with the sensor circuit, such as damaged wiring or poor connections.

3. How can I diagnose the OBDII code P0720 in my Jeep?

- Diagnosing this code typically involves checking the output speed sensor for proper operation, inspecting the sensor wiring and connections, and using a scan tool to monitor speed sensor data.

4. Can a faulty output speed sensor be repaired, or does it need to be replaced?

- In most cases, a faulty output speed sensor will need to be replaced rather than repaired to resolve the P0720 code and related issues.

5. Are there any DIY repair tips for fixing the Output Speed Sensor Circuit Malfunction in a Jeep?

- DIY repair tips include checking for loose or damaged wiring around the sensor, cleaning the sensor connector, and ensuring the sensor is securely mounted in place.

6. Will driving with the OBDII code P0720 in a Jeep cause further damage to the vehicle?

- Continuing to drive with this code may lead to further transmission issues, reduced fuel efficiency, and potential damage to other drivetrain components.

7. How much does it typically cost to repair the Output Speed Sensor Circuit Malfunction in a Jeep?

- The cost of repairing this issue can vary depending on the extent of the problem, but it typically ranges from $100 to $300 for parts and labor.

8. Can I reset the OBDII code P0720 in my Jeep without fixing the underlying issue?

- While you can clear the code temporarily, it will likely return until the root cause, such as a faulty output speed sensor, is addressed.

9. Is the Output Speed Sensor Circuit Malfunction a common issue in Jeep vehicles?

- Yes, this code is relatively common in Jeep vehicles, especially on models with higher mileage or older sensors.

10. How urgent is it to address the OBDII code P0720 in a Jeep?

- It is important to address this code promptly to prevent further transmission problems and ensure the vehicle operates safely and efficiently.

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