Audi A4 B8 Chip Card Reader for Road Toll ETC Japan Module Unit 4F0919813E

Audi A4 B8 Chip Card Reader for Road Toll ETC Japan Module Unit is a specialized component from the Electronic control modules and controllers group, designed for integration with the electrical system of Audi vehicles. This used module allows for the operation of the ETC electronic toll collection system in the Japanese specification, maintaining the factory logic of the onboard electronics.

Specifications and technical data

• SKU: 4F0919813E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8F0919813E
• Substitutable numbers: 8F0919813E, 8F0 919 813 E
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The chip card reader for the ETC toll system is responsible for communication between the user's card and the toll collection system infrastructure, working in conjunction with the vehicle's electrical system and other controllers. As a component dedicated to the Audi A4 B8, the module is designed for compatibility with the electrical architecture of this model, which facilitates integration with the existing wiring harness and other control units.

Being classified in the Electronic control modules and controllers group means that the component acts as a specialized electronic circuit that processes data from the card, communicates with the ETC system, and transmits appropriate signals to the vehicle's installation. This ensures consistency in the operation of other comfort and safety systems.

Benefits of using an original Audi module

Choosing an original chip card reader dedicated to the Audi A4 B8 allows for maintaining the consistency of the electronics with the rest of the vehicle. This solution is particularly important for cars operated in the Japanese market or imported from Japan, where the ETC system is a standard part of road infrastructure. The used module provides:

• preservation of the factory communication logic with the Audi electrical system,
• compatibility with the controller architecture used in the A4 B8 model,
• the ability to restore ETC functionality after repair or replacement of a damaged component.

As a result, the driver receives a component that was originally designed to work with Audi electronics, which reduces the risk of compatibility issues and facilitates future diagnostics.

Characteristics of the used component

The presented chip card reader for the ETC toll system is a used component, which in practice means it comes from vehicle dismantling and may show signs of previous use. Such components are frequently chosen for electronics servicing because they allow for economical repair while maintaining the original module design. In the case of electronic controllers and modules, it is important to maintain compliance with the factory specification, which facilitates subsequent configuration and potential coding.

A used module can be a good solution both when replacing a damaged reader and when restoring the full functionality of the ETC system in cars after modifications or post-accident repairs, where part of the electronics requires re-assembly.

Application in the Audi electronics system

As an element from the electronic controller group, the chip card reader works with other modules in the vehicle, creating a coherent communication ecosystem. In practice, this means:

• integration with the Audi A4 B8 electrical system,
• cooperation with other modules responsible for comfort and additional functions,
• the possibility of diagnostics using standard service tools intended for the Audi brand.

Due to the preservation of the original architecture, the installation of such a module facilitates the work of workshops specializing in Audi electronics and allows for precise reproduction of the factory equipment configuration.

If you are planning a comprehensive repair or upgrade of the onboard electronics in your Audi and need other elements from the same group, such as comfort controllers, communication modules, or equipment management systems, check the available parts in the Audi electronic control modules and controllers category.

Maintaining the Audi brand character

The use of original electronic modules has a direct impact on maintaining the Audi-specific operation of comfort and driver assistance systems. In the case of vehicles equipped with market-specific solutions, such as the Japanese ETC system, the selection of the correct chip card reader is crucial for the proper operation of the entire system.

If you want to better understand how the selection of appropriate components affects the preservation of the brand's factory DNA, it is worth reading the article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?, which discusses the role of original elements – from multimedia modules to controllers – in maintaining the consistency of the driving experience.