Innova SDS50 SDS-Tech: Tire Size Reset

Purpose

To guide users on how to perform the Tire Size Reset function while using the Innova SDS50 SDS-Tech Tablet Scan Tool.

Introduction

The Tire Size Reset function is a feature found in modern vehicles that allows users to reset or reconfigure the tire size settings within the vehicle's onboard computer system. The onboard computer, commonly known as the Electronic Control Unit (ECU), monitors various parameters related to the vehicle's performance, including tire size.

When you change the tires on your vehicle to a different size than the original factory-installed tires, it can affect the accuracy of certain systems that rely on tire size data, such as the speedometer, odometer, and anti-lock braking system (ABS). The Tire Size Reset function enables you to update the ECU with the new tire size information, ensuring the proper functioning of these systems.

It's important to note that not all vehicles have a Tire Size Reset function. Older vehicles may require physical recalibration by a mechanic or manual adjustments to the speedometer gears. Additionally, it's crucial to consult your vehicle's owner manual or contact the manufacturer to ensure you are following the correct procedure for your specific vehicle.

Procedure

Step 1 - Connect Innova SDS50 SDS-Tech Tablet Scan Tool to the vehicle and select 'Workshop Tools' function

First, connect the Innova SDS50 SDS-Tech Tablet Scan Tool to your vehicle via the On-Board Diagnostics (OBD) connector to retrieve the vehicle's information, such as Vehicle Identification Number (VIN) and model.

Then, select the 'Workshop Tools' section.

Step 2 – Select the ‘Tire Size Reset’ function

The Innova SDS50 SDS-Tech Tablet Scan Tool shows the list of functions available for your vehicle. To initiate the Tire Size Reset, choose the ‘Tire Size Reset' item from the list.

After that select ‘RCDLR-Remote Control Door Lock Receiver’ item to enter the system responsible for the Tire Size Reset’ function on the vehicle.

NOTE: The system name and function procedure differ depending on the make and model of the vehicle.

Step 3 – Choose the function to perform

Select the ‘Tire Size Reset’ item.

NOTE: The functions differ depending on the make and model of the vehicle.

Step 4 – Perform the 'Suspension Calibration’ function

After selecting the ‘Tire Type/Pressure Selection’ function, the Scan Tool shows the information and condition for the ‘Tire Type/Pressure Selection’ as in the image.

To proceed to the next step, select the ‘Confirm’ button.

Step 5 – Select the option to perform

The Scan Tool will then display options to perform the reset function. This article will introduce you to how to perform the ‘Select type’ function.

Select the ‘Select Type’ function.

Step 6 – Input new type

The Scan Tool will show the current type of vehicle. To perform the next step of the function, select the ‘Input New Type’ button.

The list of type will be shown as the image. Choose the new type for your vehicle and wait a minute.

Select the ‘Load Range C’ button to set the new type for Front Tire.

Step 7 – Finish the function

When the process is completed, the Innova SDS50 SDS-Tech Tablet Scan Tool will display the value of pressure and the current type.

Reference Video