AutoCodes – Nissan – P0720 2003 Nissan Altima Sedan

P0720 2003 Nissan Altima Sedan Code - Vehicle Speed Sensor

Quick Answer

The speed sensor (revolution sensor) detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. Common causes include Faulty Revolution Sensor, Revolution Sensor harness is open or shorted, Revolution 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 2003 Nissan Altima Sedan indicates Vehicle Speed Sensor.
Common causes
Common causes include Faulty Revolution Sensor, Revolution Sensor harness is open or shorted, Revolution 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 30,221
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 08, 2019
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Code P0720 2003 Nissan Altima Sedan Description

The speed sensor (revolution 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.

2003 Nissan Altima Revolution Sensor Location
OBDII Code P0720 2003 Nissan Altima Sedan - Vehicle Speed Sensor - AutoCodes.com
P0720 2003 Nissan Altima Sedan Code - Vehicle Speed Sensor

What are the Possible Causes of the DTC P0720 2003 Nissan Altima Sedan?

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

How to Fix the DTC P0720 2003 Nissan Altima Sedan?

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 2003 Nissan Altima Sedan 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 2003 Nissan Altima Sedan 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 2003 Nissan Altima Sedan Code

1. What does OBDII code P0720 mean for a 2003 Nissan Altima Sedan?

Code P0720 indicates a problem with the vehicle speed sensor in a 2003 Nissan Altima Sedan, affecting the transmission's ability to shift properly.

2. What are the common symptoms of a P0720 code in a 2003 Nissan Altima Sedan?

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

3. What are the possible causes of a P0720 code in a 2003 Nissan Altima Sedan?

The P0720 code in a 2003 Nissan Altima Sedan can be caused by a faulty vehicle speed sensor, damaged wiring or connectors, or issues with the transmission control module.

4. How can I diagnose a P0720 code in my 2003 Nissan Altima Sedan?

Diagnosis involves checking the vehicle speed sensor and its wiring for damage, testing the sensor's output signal, and scanning the transmission control module for related trouble codes.

5. Can a faulty vehicle speed sensor cause other issues besides the P0720 code in a 2003 Nissan Altima Sedan?

Yes, a faulty vehicle speed sensor can also cause issues like inaccurate speedometer readings, ABS system malfunctions, and cruise control problems.

6. How can I repair a P0720 code in a 2003 Nissan Altima Sedan?

Repairing a P0720 code typically involves replacing the faulty vehicle speed sensor, repairing damaged wiring or connectors, and clearing the trouble code with an OBDII scanner.

7. Is it safe to continue driving with a P0720 code in a 2003 Nissan Altima Sedan?

It is not recommended to drive with a P0720 code as it can lead to transmission issues and potentially unsafe driving conditions. It's best to address the problem promptly.

8. Can I fix a P0720 code in a 2003 Nissan Altima Sedan on my own?

If you have the necessary tools and mechanical skills, you may be able to replace the vehicle speed sensor yourself. However, if you're unsure, it's best to consult a professional mechanic.

9. How much does it typically cost to repair a P0720 code in a 2003 Nissan Altima Sedan?

The cost of repairing a P0720 code can vary depending on the exact cause of the issue, but it generally ranges from $100 to $300 for parts and labor.

10. Will resetting the trouble codes clear a P0720 code in a 2003 Nissan Altima Sedan?

While resetting the trouble codes may temporarily clear the P0720 code, it's important to address the underlying issue causing the code to prevent it from reoccurring.

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