AutoCodes – Infiniti – P0720 2004 Infiniti G35

P0720 2004 Infiniti G35 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 2004 Infiniti G35 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.

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Code Popularity 4,491

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 May 08, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0720 2004 Infiniti G35 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.

OBDII Code P0720 2004 Infiniti G35 - Vehicle Speed Sensor - AutoCodes.com — P0720 2004 Infiniti G35 Code - Vehicle Speed Sensor

What does this mean?

What are the Possible Causes of the DTC P0720 2004 Infiniti G35?

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

How to Fix the DTC P0720 2004 Infiniti G35?

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 does this mean?

Code Tech Notes

On most Infiniti vehicles, the vehicle speed sensor is called Revolution Sensor

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0720 2004 Infiniti G35 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 2004 Infiniti G35 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 2004 Infiniti G35 Code

1. What does OBDII code P0720 on a 2004 Infiniti G35 mean?

The code P0720 indicates a problem with the vehicle speed sensor circuit in the transmission.

2. What are the common symptoms of a P0720 code in a 2004 Infiniti G35?

Common symptoms include erratic or non-functional speedometer, harsh shifting, delayed shifting, and the transmission going into limp mode.

3. What are the possible causes of a P0720 code in a 2004 Infiniti G35?

Possible causes include a faulty vehicle speed sensor, damaged or worn-out wiring harness, poor electrical connection, or issues with the transmission control module.

4. How can I diagnose a P0720 code in my 2004 Infiniti G35?

Diagnosing a P0720 code typically involves checking the vehicle speed sensor for proper operation, inspecting the wiring for any damage, and scanning the transmission control module for related fault codes.

5. What is the repair process for a P0720 code on a 2004 Infiniti G35?

The repair process may involve replacing the vehicle speed sensor, repairing or replacing damaged wiring, ensuring proper electrical connections, and clearing the fault code from the transmission control module.

6. Can a faulty vehicle speed sensor cause other issues besides a P0720 code in a 2004 Infiniti G35?

Yes, a faulty vehicle speed sensor can cause a variety of issues such as inaccurate speedometer readings, ABS system malfunctions, and improper shifting behavior.

7. Is it safe to continue driving with a P0720 code in a 2004 Infiniti G35?

It is not recommended to continue driving with a P0720 code as it can lead to further damage to the transmission and other related components. It is best to address the issue promptly.

8. How much does it typically cost to repair a P0720 code on a 2004 Infiniti G35?

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

9. Can I reset the P0720 code in my 2004 Infiniti G35 without fixing the underlying issue?

While you can clear the fault code using an OBDII scanner, the code is likely to return until the root cause of the problem, such as a faulty vehicle speed sensor, is addressed.

10. Will a P0720 code in a 2004 Infiniti G35 cause the vehicle to fail an emissions test?

A P0720 code itself may not cause the vehicle to fail an emissions test, but it is indicative of a problem that should be resolved to ensure proper vehicle performance and emissions compliance.