G35 ECU Reset: Step-By-Step Guides

Resetting the G35 ECU is a simple procedure that can help you get the most out of your Infiniti vehicle. When you reset ECU, you’re essentially giving the car’s computer system a fresh start. This fresh start allows the ECU to re-learn your driving habits. It also optimizes fuel efficiency, throttle response, and overall performance.

Before you attempt the ECU reset, it’s important to familiarize yourself with the process to ensure you don’t accidentally trigger any unwanted consequences. This article will guide you step-by-step through the ECU reset procedure, providing helpful tips to ensure the process goes smoothly and effectively for your Infiniti G35.

As you read on, you’ll learn about the benefits of resetting your G35 ECU and how this procedure can help enhance the driving experience in your car. 

Benefits of Resetting Your G35 ECU

Resetting your G35 ECU can offer several benefits, helping your vehicle run smoother and more efficiently. One of the main advantages is that an ECU reset can optimize your car’s performance after modifications or upgrades.

For example, if you’ve installed a new intake or exhaust system, resetting the ECU allows it to adjust to the new parameters, such as airflow and fuel mixture, resulting in better overall performance.

Another benefit of an ECU reset is that it can potentially improve your G35’s fuel economy. The engine management system continually learns and adapts to your driving habits, and over time, these adaptations may lead to a decrease in fuel efficiency. By resetting the ECU, your engine can re-learn its parameters and restore its original fuel consumption capabilities.

Lastly, an ECU reset can help identify and resolve potential issues with your vehicle’s engine or other components. If your G35 exhibits poor performance or unusual behavior, resetting the ECU can sometimes resolve the issue by clearing stored error codes or resetting the components to their default settings. This troubleshooting method may save you both time and money, avoiding unnecessary repairs or replacements.

Step-By-Step G35 ECU Reset Process

Locate the Battery and ECU

First, locate your G35’s battery, which is usually found in the engine compartment, or in some cases, in the trunk. Next, locate the Engine Control Unit (ECU), a small computer that controls your car’s engine functions. The ECU can be found under the passenger side dashboard or behind the glovebox, depending on your model.

Disconnect the Battery

Before starting the reset process, make sure to turn off your car and remove the key from the ignition. Then, use a wrench to disconnect the negative terminal of the battery. By disconnecting the battery, you will be cutting the power supply to the ECU, allowing it to reset.

Perform the ECU Reset

Now that you have disconnected the battery, get back into the driver’s seat and depress the brake pedal a few times. This helps drain any residual power stored in the ECU and other electrical devices.

Following that, perform the following steps to reset the ECU:

  1. Turn the ignition switch to the “ON” position and wait for 2 seconds.
  1. Turn the ignition switch to the “OFF” position and wait for at least 10 seconds.
  1. Repeat the above two steps a couple of times to ensure a proper ECU reset

Reconnect the Battery

With the ECU reset process completed, it is now time to reconnect your battery. Reattach the negative terminal to the battery using your wrench. Ensure it is securely fastened to avoid any issues later on.

Finally, start your car and let it idle for a few minutes, allowing the ECU to relearn the various engine parameters. During this time, avoid revving the engine or using any accessories. Your G35’s ECU reset is now complete, and your car should be operating at its optimal performance.

Precautions and Warnings

When attempting to reset your G35 ECU, it’s important to follow the proper procedures and steps to ensure the safety of your vehicle’s electrical system. Before you begin, here are some precautions and warnings to keep in mind:

First and foremost, make sure your vehicle is parked in a safe place, away from any traffic or obstructions. Additionally, ensure the engine is turned off and the key is in the “OFF” position.

Taking note of the proper timing is crucial when resetting the ECU. Follow the instructions carefully and adhere to the specific time intervals mentioned in the procedure. For example, waiting for at least 2 seconds while the ignition is on, and 10 seconds while it’s off.

  • Pay close attention to the accelerator pedal during the reset process. It should be fully released before beginning the procedure.
  • Using a stopwatch or analog clock with a second hand can help you accurately track the required time intervals.

Resetting the ECU involves draining stored electrical energy. Be prepared to lose any saved settings or preferences in your car’s computer when performing this procedure.

Remember to exercise caution around your vehicle’s battery. When disconnecting the battery for the ECU reset, handle the terminal clamps with care to avoid damaging the wires or connections. Also, ensure you are wearing appropriate safety gear, such as gloves, to protect yourself from any potential hazards.


In this article, we’ve covered the process of resetting the G35 ECU. It’s essential to be thorough and follow the steps closely for a successful outcome.

When performing an ECU reset, patience is key. The procedure may feel a bit challenging, especially in terms of timing, but you can successfully execute it with practice. If you’re uncertain about any aspect, seek advice from experienced G35 owners or a professional mechanic.

Besides following the correct steps to reset the ECU, it’s essential to familiarize yourself with other maintenance procedures for your G35. This will help you keep your vehicle in top condition and avoid potential issues down the road.

By taking the time to learn and understand the proper maintenance procedures for your Infiniti G35, you’ll ensure a smooth and enjoyable driving experience.