AutoCodes – Mitsubishi – P0720 Mitsubishi

P0720 Mitsubishi 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 Mitsubishi 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 28,124

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0720 Mitsubishi 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 Mitsubishi - Output Speed Sensor Circuit Malfunction - AutoCodes.com — P0720 Mitsubishi Code - Output Speed Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0720 Mitsubishi?

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

How to Fix the DTC P0720 Mitsubishi?

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 Mitsubishi 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.

Need more information about the P0720 Mitsubishi code?

Need more information on how to fix the P0720 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.