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Vcds 12.12.3

What is VCDS 12.12.3 and How to Use It

VCDS 12.12.3 is a software program that allows you to diagnose and modify the settings of various control modules in Volkswagen, Audi, Seat and Skoda vehicles. It is developed by Ross-Tech, LLC, and works with their proprietary interfaces such as HEX-NET, HEX-V2, KEY and Micro-CAN.

VCDS 12.12.3 is compatible with Windows 7, 8, 10 and 11 (both 32-bit and 64-bit), and can be downloaded from the Ross-Tech website[^2^]. It can also be installed from a Google Drive link[^1^], but this is not recommended by the developer.

To use VCDS 12.12.3, you need to connect an appropriate interface between your computer and your car's diagnostic port. Then, you need to launch the VCDS program and select the correct communications port from the Options menu. You can use the Test button to confirm that the program can communicate with the interface and the car.

Once you have established a connection, you can access various features of VCDS 12.12.3, such as:

Querying fault codes from some or all control modules

Clearing fault codes and resetting service indicators

Viewing live data and measuring values from sensors and actuators

Performing basic settings and adaptations

Coding and recoding control modules

Performing output tests and actuator tests

Logging data and graphing values

Saving and printing reports

VCDS 12.12.3 also supports some advanced functions, such as:

Long coding helper

Security access code finder

Label file viewer

Module finder

Service reminder resetter

Turbocharger boost adjustment

Diesel particulate filter regeneration

Battery management system reset

Airbag crash data clearing

Immobilizer programming

VCDS 12.12.3 is a powerful tool that can help you diagnose problems, customize settings and optimize performance of your car. However, it is also a complex program that requires some knowledge and experience to use safely and effectively. You should always read the instructions carefully before using VCDS 12.12.3, and consult a professional if you are unsure about anything.

In this section, we will show you some examples of how to use VCDS 12.12.3 to perform some common tasks on your car. Note that these examples are for illustration purposes only, and may not apply to your specific model or year. Always refer to the official documentation and label files for your car before making any changes.

How to Read and Clear Fault Codes with VCDS 12.12.3

One of the most useful features of VCDS 12.12.3 is the ability to read and clear fault codes from various control modules in your car. Fault codes are stored when the car detects a problem with a sensor, actuator, or system. Reading fault codes can help you diagnose the cause of a problem, and clearing fault codes can reset the service indicators or warning lights on your dashboard.

To read and clear fault codes with VCDS 12.12.3, follow these steps:

Connect your interface to your car's diagnostic port and launch VCDS 12.12.3.

Select Auto Scan from the main menu and wait for the scan to complete.

You will see a list of control modules with their status and number of fault codes (if any).

Select a control module that has fault codes by clicking on it.

You will see a detailed report of the fault codes, including their description, frequency, and status.

To clear the fault codes, click on Clear Codes at the bottom of the screen.

You will be asked to confirm your action. Click Yes to proceed.

The fault codes will be cleared and you will see a confirmation message.

Click Done, Go Back to return to the Auto Scan screen.

Repeat steps 4 to 9 for any other control modules that have fault codes.

How to Code and Recode Control Modules with VCDS 12.12.3

Another useful feature of VCDS 12.12.3 is the ability to code and recode control modules in your car. Coding is the process of changing the settings or configuration of a control module, such as enabling or disabling certain features or functions. Recoding is the process of changing the software version or variant of a control module, such as updating it to a newer version or changing it to a different region or market.

To code and recode control modules with VCDS 12.12.3, follow these steps:

Connect your interface to your car's diagnostic port and launch VCDS 12.12.3.

Select Select Control Module from the main menu and choose a control module that you want to code or recode.

You will see a screen with various options for that control module.

To code the control module, click on Coding - 07.

You will see a screen with the current coding value and a list of possible options for each byte and bit.

To change an option, click on it and select a new value from the drop-down menu.

To save your changes, click on Do It! at the bottom of the screen.

You will be asked to confirm your action. Click Yes to proceed.

The coding value will be changed and you will see a confirmation message.

Click Done, Go Back to return to the previous screen.

To recode the control module, click on Software Coding - 22.

You will see a screen with the current software coding value and a list of possible options for each digit.

To change an option, click on it and select a new value from the drop-down menu.

To save your changes, click on Do It! at the bottom of the screen.

You will be asked to confirm your action. Click Yes to proceed.

The software coding value will be changed and you will see a confirmation message.

Click Done, Go Back to return to the previous screen. 061ffe29dd