AutoCodes – Honda – P0720 2009 Honda Accord

P0720 2009 Honda Accord Code - Output Shaft Speed Sensor Circuit Fault

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 2009 Honda Accord indicates Output Shaft Speed Sensor Circuit Fault.
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 10,409

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 2009 Honda Accord 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 2009 Honda Accord - Output Shaft Speed Sensor Circuit Fault - AutoCodes.com — P0720 2009 Honda Accord Code - Output Shaft Speed Sensor Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P0720 2009 Honda Accord?

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

How to Fix the DTC P0720 2009 Honda Accord?

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 2009 Honda Accord 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 2009 Honda Accord code?

Need more information on how to fix the P0720 2009 Honda Accord 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 2009 Honda Accord Code

1. What are common symptoms of OBDII code P0720 in a 2009 Honda Accord?

- Common symptoms include erratic speedometer readings, harsh shifting, and the transmission going into limp mode.

2. What does the OBDII code P0720 indicate in a 2009 Honda Accord?

- OBDII code P0720 indicates a fault in the output shaft speed sensor circuit in the transmission.

3. What are possible causes of the output shaft speed sensor circuit fault in a 2009 Honda Accord?

- Possible causes include a faulty speed sensor, damaged wiring or connectors, or issues with the transmission control module.

4. How can I diagnose the output shaft speed sensor circuit fault in my 2009 Honda Accord?

- Diagnose by checking the speed sensor for proper operation, inspecting the wiring and connectors for damage, and using a scan tool to read the code.

5. Can I drive my 2009 Honda Accord with OBDII code P0720?

- It is not recommended to drive with this code as it can lead to further transmission issues and potential safety hazards.

6. How can I repair the output shaft speed sensor circuit fault in my 2009 Honda Accord?

- Repair involves replacing the faulty speed sensor, repairing any damaged wiring or connectors, and clearing the code with a scan tool.

7. Will resetting the OBDII code P0720 in my 2009 Honda Accord fix the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the fault.

8. How much does it typically cost to repair OBDII code P0720 in a 2009 Honda Accord?

- The cost can vary depending on the exact cause of the fault, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix the output shaft speed sensor circuit fault in a 2009 Honda Accord?

- It is possible for experienced DIY enthusiasts to fix this issue, but it may require specialized tools and knowledge of automotive electrical systems.

10. How long does it take to repair OBDII code P0720 in a 2009 Honda Accord?

- The repair time can vary based on the exact cause of the fault and the skill level of the person performing the repair, but it may take a few hours to complete.