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P0720 2001 Infiniti I30 Code - Vehicle Speed Sensor

Quick Answer

The P0720 code on a 2001 Infiniti I30 indicates a fault with the vehicle speed sensor. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, Malfunctioning ECM. 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 2001 Infiniti I30 indicates Vehicle Speed Sensor.
Common causes
Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, Malfunctioning ECM.
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 13, 2024
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Code P0720 2001 Infiniti I30 Description

The P0720 code on a 2001 Infiniti I30 indicates a fault with the vehicle speed sensor. The vehicle speed sensor, also known as the VSS, is a crucial component that monitors the speed of the vehicle and sends this information to the engine control module (ECM). The ECM uses this data to adjust various systems, such as fuel injection, transmission shifting, and ABS braking. When the vehicle speed sensor malfunctions or fails, it can lead to a range of performance issues and potential safety concerns.

OBDII Code P0720 2001 Infiniti I30 - Vehicle Speed Sensor
P0720 2001 Infiniti I30 Code - Vehicle Speed Sensor

Common Causes of P0720 2001 Infiniti I30

  1. Faulty vehicle speed sensor
  2. Damaged wiring or connectors
  3. Malfunctioning ECM
  4. Issues with the tone ring or gear

Symptoms of P0720 2001 Infiniti I30

  1. Inaccurate speedometer readings
  2. Harsh or erratic shifting of the transmission
  3. Poor fuel efficiency
  4. Vehicle going into limp mode
  5. ABS or traction control system malfunctions

How to Fix P0720 2001 Infiniti I30

  1. Diagnose the issue by using a scan tool to confirm the P0720 code and test the vehicle speed sensor's signal.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as needed.
  3. Replace the vehicle speed sensor if it is found to be faulty.
  4. Check the tone ring or gear for any damage and replace if necessary.
  5. Clear the code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0720 2001 Infiniti I30

The cost of repairing a P0720 code on a 2001 Infiniti I30 can vary depending on the specific cause of the issue. In general, the cost of a new vehicle speed sensor can range from $50 to $150, while the labor cost for the repair can be between $100 and $200. Overall, the total repair cost for this issue may range from $150 to $350. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, labor rates, and any additional parts or repairs needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

What does this mean?

Tech Notes for P0720 2001 Infiniti I30

On most Infiniti vehicles, the vehicle speed sensor is called Revolution Sensor. If there are no mechanical problems in the transmission, usually replacing the revolution sensor takes care of the problem.

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 2001 Infiniti I30 Code

1. What does OBDII code P0720 on a 2001 Infiniti I30 indicate?

The OBDII code P0720 on a 2001 Infiniti I30 typically indicates a problem with the vehicle speed sensor.

2. What are the common symptoms of a P0720 OBDII code in a 2001 Infiniti I30?

Common symptoms of a P0720 OBDII code in a 2001 Infiniti I30 include speedometer issues, erratic or non-functional speedometer readings, and potential transmission shifting problems.

3. What are the possible causes of a P0720 OBDII code in a 2001 Infiniti I30?

Possible causes of a P0720 OBDII code in a 2001 Infiniti I30 include a faulty vehicle speed sensor, damaged wiring or connectors related to the sensor, or issues with the transmission control module.

4. How can I diagnose the cause of a P0720 OBDII code in a 2001 Infiniti I30?

To diagnose the cause of a P0720 OBDII code in a 2001 Infiniti I30, you can use a scan tool to check for additional trouble codes, visually inspect the vehicle speed sensor and its wiring, and perform a continuity test on the sensor.

5. Can I continue to drive my 2001 Infiniti I30 with a P0720 OBDII code?

It is not recommended to continue driving your 2001 Infiniti I30 with a P0720 OBDII code, as it can lead to inaccurate speedometer readings and potential transmission issues.

6. How difficult is it to replace the vehicle speed sensor on a 2001 Infiniti I30?

Replacing the vehicle speed sensor on a 2001 Infiniti I30 is a moderate task that may require basic mechanical skills and tools. It is located on the transmission and typically involves removing and replacing the sensor.

7. Are there any DIY repair tips for fixing a P0720 OBDII code on a 2001 Infiniti I30?

DIY repair tips for fixing a P0720 OBDII code on a 2001 Infiniti I30 include checking and cleaning the sensor connections, inspecting the sensor for damage or debris, and ensuring proper alignment during installation.

8. What are the potential risks of ignoring a P0720 OBDII code on a 2001 Infiniti I30?

Ignoring a P0720 OBDII code on a 2001 Infiniti I30 can lead to inaccurate speedometer readings, potential transmission issues, and decreased fuel efficiency.

9. How much does it typically cost to repair a P0720 OBDII code on a 2001 Infiniti I30?

The cost to repair a P0720 OBDII code on a 2001 Infiniti I30 can vary depending on the root cause of the issue. It may range from $100 to $300 for parts and labor.

10. Can a P0720 OBDII code in a 2001 Infiniti I30 be cleared/reset without fixing the underlying issue?

Clearing or resetting a P0720 OBDII code in a 2001 Infiniti I30 without fixing the underlying issue is not recommended, as the problem will likely reoccur and potentially lead to more severe issues with the vehicle.

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