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P0720 2010 Honda Accord Code - Output Shaft Speed Sensor Circuit Fault

Quick Answer

The P0720 code for a 2010 Honda Accord indicates a fault in the output shaft speed sensor circuit. Common causes include Faulty output shaft speed sensor, Damaged or corroded wiring/connectors in the sensor circuit, ECM software 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 2010 Honda Accord indicates Output Shaft Speed Sensor Circuit Fault.
Common causes
Common causes include Faulty output shaft speed sensor, Damaged or corroded wiring/connectors in the sensor circuit, ECM software 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 Aug 25, 2024
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Code P0720 2010 Honda Accord Description

The P0720 code for a 2010 Honda Accord indicates a fault in the output shaft speed sensor circuit. This sensor is responsible for monitoring the speed of the transmission output shaft and sending that information to the vehicle's engine control module (ECM). The ECM uses this data to determine the appropriate shift points for the transmission. If the sensor circuit is faulty, it can lead to issues with shifting, fuel efficiency, and overall performance of the vehicle.

OBDII Code P0720 2010 Honda Accord - Output Shaft Speed Sensor Circuit Fault
P0720 2010 Honda Accord Code - Output Shaft Speed Sensor Circuit Fault

Common Causes of P0720 2010 Honda Accord

  1. Faulty output shaft speed sensor
  2. Damaged or corroded wiring/connectors in the sensor circuit
  3. ECM software issues
  4. Transmission fluid contamination or low levels
  5. Mechanical transmission issues

Symptoms of P0720 2010 Honda Accord

  1. Harsh or erratic shifting
  2. Delayed or no upshifting
  3. Decreased fuel efficiency
  4. Illuminated Check Engine Light
  5. Transmission slipping or jerking

How to Fix P0720 2010 Honda Accord

  1. Diagnose the issue by using a scan tool to verify the P0720 code and perform a visual inspection of the sensor and its wiring.
  2. Test the output shaft speed sensor using a multimeter to check for proper resistance values.
  3. Replace the faulty sensor if it is determined to be the cause of the issue.
  4. Repair or replace any damaged wiring or connectors in the sensor circuit.
  5. Clear the error codes and test drive the vehicle to ensure proper operation.

Cost to Fix P0720 2010 Honda Accord

The cost of repairing a P0720 code in a 2010 Honda Accord can vary depending on the specific cause of the issue. On average, the cost of replacing an output shaft speed sensor can range from $100 to $200, including parts and labor. Additional costs may be incurred if there are other underlying issues contributing to the fault. It's recommended to consult with a trusted mechanic or dealership for a more accurate estimate based on your vehicle's specific needs. Labor rates can vary, so it's important to consider these factors when budgeting for the repair.

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 2010 Honda Accord Code

1. What are the common symptoms of OBDII code P0720 in a 2010 Honda Accord?

- The common symptoms include issues with the vehicle's speedometer, erratic shifting, delayed engagement when shifting gears, and the transmission going into limp mode.

2. What does OBDII code P0720 indicate in a 2010 Honda Accord?

- OBDII code P0720 in a 2010 Honda Accord indicates a fault in the output shaft speed sensor circuit, specifically related to the speed sensor for the transmission.

3. What are the possible causes of OBDII code P0720 in a 2010 Honda Accord?

- The possible causes of OBDII code P0720 in a 2010 Honda Accord include a faulty output shaft speed sensor, damaged wiring or connectors in the speed sensor circuit, or issues with the transmission control module.

4. How can I diagnose the output shaft speed sensor circuit fault in a 2010 Honda Accord?

- To diagnose the output shaft speed sensor circuit fault, you can use a scan tool to read the OBDII code P0720, visually inspect the speed sensor and its connections, and perform electrical tests to check for continuity and proper voltage.

5. Can a DIY enthusiast repair OBDII code P0720 in a 2010 Honda Accord?

- Repairing OBDII code P0720 in a 2010 Honda Accord may require intermediate to advanced mechanical skills due to the location of the output shaft speed sensor and the complexity of the transmission. It is recommended to consult a professional mechanic for proper diagnosis and repair.

6. Is it safe to continue driving a 2010 Honda Accord with OBDII code P0720?

- It is not recommended to drive a 2010 Honda Accord with OBDII code P0720 for an extended period as it can lead to further damage to the transmission. It is advisable to address the issue promptly to prevent potential costly repairs.

7. How much does it cost to repair OBDII code P0720 in a 2010 Honda Accord?

- The cost to repair OBDII code P0720 in a 2010 Honda Accord can vary depending on the exact cause of the issue. However, it may range from $200 to $500 for parts and labor, but prices can be higher if additional components need replacement.

8. Can a faulty output shaft speed sensor affect the fuel efficiency of a 2010 Honda Accord?

- Yes, a faulty output shaft speed sensor can affect the fuel efficiency of a 2010 Honda Accord by causing transmission issues that lead to inefficient gear shifts and increased fuel consumption.

9. How long does it typically take to repair OBDII code P0720 in a 2010 Honda Accord?

- The repair time for OBDII code P0720 in a 2010 Honda Accord can vary based on the exact cause of the issue and the mechanic's expertise. Typically, it may take a few hours to a full day to diagnose and repair the output shaft speed sensor circuit fault.

10. Can resetting the OBDII code P0720 in a 2010 Honda Accord temporarily fix the issue?

- Resetting the OBDII code P0720 in a 2010 Honda Accord may temporarily clear the error code, but if the underlying issue such as a faulty output shaft speed sensor or wiring problem is not addressed, the code is likely to reappear.

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