AutoCodesJeep – P0720 Jeep

P0720 Jeep Code - Output Speed Sensor Circuit Malfunction

Quick Answer

The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. Common causes include Faulty Speed Sensor, Speed Sensor harness is open or shorted, 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 Jeep indicates Output Speed Sensor Circuit Malfunction.
Common causes
Common causes include Faulty Speed Sensor, Speed Sensor harness is open or shorted, 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 48,567
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0720 Jeep Description

The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed.
OBDII Code P0720 Jeep - Output Speed Sensor Circuit Malfunction - AutoCodes.com
P0720 Jeep Code - Output Speed Sensor Circuit Malfunction

What are the Possible Causes of the DTC P0720 Jeep?

  • Faulty Speed Sensor
  • Speed Sensor harness is open or shorted
  • Speed Sensor circuit poor electrical connection

How to Fix the DTC P0720 Jeep?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0720 Jeep 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 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.

Discuss the causes and fixes for P0720 Jeep OBDII Code

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