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P0720 Mitsubishi Code - Output Speed Sensor Circuit Malfunction

Quick Answer

The P0720 code in a Mitsubishi vehicle indicates a malfunction in the output speed sensor circuit. Common causes include Faulty output speed sensor, Damaged wiring or connectors in the sensor circuit, ECM issues. 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 Mitsubishi indicates Output Speed Sensor Circuit Malfunction.
Common causes
Common causes include Faulty output speed sensor, Damaged wiring or connectors in the sensor circuit, ECM issues.
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 12, 2024
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Code P0720 Mitsubishi Description

The P0720 code in a Mitsubishi vehicle indicates a malfunction in the output speed sensor circuit. The output speed sensor is a crucial component of the vehicle's transmission system, responsible for monitoring the speed of the output shaft and sending this information to the engine control module (ECM). This data is essential for the ECM to make adjustments to the transmission's shifting patterns, ensuring smooth and efficient operation.

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

Common Causes of P0720 Mitsubishi

  1. Faulty output speed sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM issues
  4. Transmission fluid contamination
  5. Mechanical problems within the transmission

Symptoms of P0720 Mitsubishi

  1. Rough or delayed gear changes
  2. Poor acceleration
  3. Reduced fuel efficiency
  4. Limp mode activation
  5. Illumination of the check engine light

How to Fix P0720 Mitsubishi

  1. Begin by conducting a thorough diagnostic test to pinpoint the exact cause of the malfunction.
  2. Inspect the output speed sensor, wiring, and connectors for any signs of damage or wear.
  3. Replace the output speed sensor if found to be faulty, ensuring proper installation and connection.
  4. Repair or replace any damaged wiring or connectors in the sensor circuit.
  5. Clear the diagnostic trouble codes from the ECM and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0720 Mitsubishi

The typical repair costs for addressing a P0720 code in a Mitsubishi vehicle can range from $200 to $500, depending on the specific cause of the issue and the labor rates at the auto repair shop. It's important to note that the cost of parts and labor can vary significantly based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, diagnostic time and labor rates at dealerships or in metropolitan areas may be higher, while independent shops often offer more affordable rates. To obtain a more precise estimate, it's advisable to consult with local auto repair shops.

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 Mitsubishi Code

1. What is OBDII code P0720 in a Mitsubishi and what does it indicate?

Code P0720 refers to the Output Speed Sensor Circuit Malfunction in a Mitsubishi vehicle, signaling an issue with the speed sensor that monitors the vehicle's output shaft speed.

2. What are the common symptoms of a P0720 error code in a Mitsubishi?

Common symptoms include erratic speedometer readings, difficulty shifting gears, stalling at low speeds, and an illuminated check engine light.

3. What are the possible causes of a P0720 code in a Mitsubishi?

Potential causes include a faulty output speed sensor, damaged/corroded wiring or connectors, issues with the transmission control module, or a problem with the engine control module.

4. How can I diagnose a P0720 code in my Mitsubishi?

Diagnosing a P0720 code usually involves using a scan tool to retrieve the code, inspecting the speed sensor and its wiring for damage, and testing the sensor's resistance and voltage output.

5. Can I still drive my Mitsubishi with a P0720 code?

It is not recommended to drive your vehicle with a P0720 code as it can lead to further damage to the transmission system and affect drivability.

6. How can I repair a P0720 code in my Mitsubishi?

Repair options include replacing the output speed sensor, repairing or replacing damaged wiring/connectors, resetting the fault codes, and retesting the system.

7. Is it possible to reset the P0720 code in a Mitsubishi without repairs?

While clearing the code may temporarily turn off the check engine light, it is essential to address the underlying issue causing the P0720 code to prevent future problems.

8. Are there any preventive maintenance tips to avoid a P0720 code in my Mitsubishi?

Regularly inspect and maintain your vehicle's transmission system, promptly address any odd shifting behavior or speedometer issues, and ensure proper electrical connections.

9. Can a DIY enthusiast fix the P0720 code issue in a Mitsubishi?

Depending on your mechanical skills and tools available, some DIY enthusiasts may be able to replace the output speed sensor or repair damaged wiring themselves. However, professional diagnosis and repair are recommended for complex issues.

10. Does a P0720 code always require a visit to the dealership for repairs?

While a dealership can provide specialized expertise, independent repair shops and skilled mechanics can also effectively diagnose and repair a P0720 code in a Mitsubishi at a potentially lower cost.

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