AutoCodes – Infiniti – P0720 2003 Infiniti G35

P0720 2003 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 2003 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 10,715

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0720 2003 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 2003 Infiniti G35 - Vehicle Speed Sensor - AutoCodes.com — P0720 2003 Infiniti G35 Code - Vehicle Speed Sensor

What does this mean?

What are the Possible Causes of the DTC P0720 2003 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 2003 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 2003 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 2003 Infiniti G35 code?

Need more information on how to fix the P0720 2003 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0720 2003 Infiniti G35 code diagnosed by a professional: Find a repair shop in your area

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 Infiniti G35 Code

1. What does OBDII code P0720 on a 2003 Infiniti G35 mean?

- OBDII code P0720 in a 2003 Infiniti G35 indicates a problem with the vehicle speed sensor circuit.

2. What are the common symptoms of a P0720 code in a 2003 Infiniti G35?

- Common symptoms of a P0720 code include erratic speedometer readings, harsh shifting, and the transmission going into limp mode.

3. What are the possible causes of a P0720 code in a 2003 Infiniti G35?

- Possible causes of a P0720 code can include a faulty vehicle speed sensor, damaged wiring or connectors, or issues with the transmission control module.

4. How can I diagnose the P0720 code on my 2003 Infiniti G35?

- To diagnose a P0720 code, you can use a scan tool to check for the code, inspect the vehicle speed sensor and its wiring, and perform a road test to monitor speed sensor data.

5. Can I drive my 2003 Infiniti G35 with a P0720 code?

- It is not recommended to drive your Infiniti G35 with a P0720 code as it can lead to transmission issues and potential safety hazards.

6. How do I repair a P0720 code on my 2003 Infiniti G35?

- To repair a P0720 code, you may need to replace the vehicle speed sensor, repair damaged wiring, or reset the transmission control module.

7. Are there any DIY tips for fixing a P0720 code on a 2003 Infiniti G35?

- DIY tips for fixing a P0720 code include checking and cleaning the speed sensor connections, inspecting the sensor for physical damage, and ensuring proper wiring connections.

8. Can a P0720 code in a 2003 Infiniti G35 cause other issues?

- Yes, a P0720 code can cause issues such as incorrect shifting patterns, poor fuel economy, and potential damage to the transmission over time.

9. How much does it cost to repair a P0720 code on a 2003 Infiniti G35?

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

10. Will resetting the P0720 code on a 2003 Infiniti G35 make it go away permanently?

- Resetting the P0720 code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to reappear. It's crucial to diagnose and repair the root cause of the problem.