OBD VIN Emulator | CAN VIN Filter

Beschreibung

Professional VIN Synchronization Solution for Modern Vehicles

The OBD VIN Emulator (VIN Filter) is a professional electronic module designed to control and standardize the VIN number reported on a vehicle CAN bus through the OBD diagnostic line.

Many modern vehicles store the Vehicle Identification Number (VIN) in multiple electronic control units (ECUs). During diagnostics or module replacement, different control units may report different VIN numbers.

The VIN Emulator solves this problem by filtering CAN messages that contain VIN information and replacing them with a single VIN number stored in the device memory.

As a result, all diagnostic tools will see one consistent VIN 

Why This Device Is Needed

Modern vehicles can contain up 100+ control units, and several of them store the VIN internally. When components are replaced or cloned, mismatched VIN numbers may appear.

Typical situations include:

• ECU replacement
• used module installation
• retrofits and vehicle conversions
• cloning ECUs
• development and testing environments
• prototype vehicles
• vehicle electronics diagnostics

• vehicles repaired after water or flood damage where multiple electronic modules had to be replaced

In such cases, different modules may report different VIN numbers on the CAN bus.

The VIN Emulator filters those messages and outputs a unified VIN, preventing conflicts in diagnostic sessions.

Advanced Firmware Architecture

The device uses a 7-layer CAN message filtering system designed to ensure maximum safety and compatibility.

Key technologies include:

• VIN message identification logic
• multi-frame VIN handling
• standard and extended CAN frame support
• secure message validation
• zero-delay forwarding architecture
• diagnostic request verification
• VIN response modification only

All other CAN traffic is passed through unchanged, ensuring the device does not interfere with normal vehicle communication.

Automatic CAN Baud Rate Detection

The emulator automatically detects the CAN bus speed used by the vehicle.

Supported baud rates:

• 500 kbps
• 250 kbps
• 125 kbps

The device continuously scans until communication is detected, making it compatible with a wide range of vehicles without manual configuration.

Product Versions

1.SOLDER Version – ULTRA COMPACT

The Solder Version is an ultra-compact module designed for permanent installation directly inside the OBD wiring.

Size:
14 × 23 mm

Features:

• extremely small and discreet
• almost invisible installation
• pre-programmed VIN number
• designed for professional installers

Because the VIN is preprogrammed at production time, the customer must provide the VIN number when ordering.

This version is ideal for:

• professional workshops
• permanent installations
• hidden integration inside wiring harness

2. Plug & Play Version (OBD Extender)

The Plug & Play VIN Emulator is built into a compact 25 cm OBD extension cable, allowing fast installation without any wiring or soldering.

Simply connect the device between the vehicle OBD port and the diagnostic tool, and the emulator will begin filtering VIN messages on the CAN bus.

This version is ideal for:

• diagnostic workshops
• automotive electronics specialists
• testing and development environments
• temporary VIN synchronization during diagnostics

Installation takes only seconds and can be easily removed when needed.

Package Options – Two package options are available:

Option 1 — PCB Only

Includes:

• Plug & Play VIN Emulator module (OBD extender)

This option is intended for customers who already own the USB programming cable.

Since the same USB cable can be used to program multiple emulator modules, purchasing additional cables is unnecessary.

Option 2 — Full Kit

Includes:

• Plug & Play VIN Emulator module
• USB programming cable
• VIN configuration PC software

This package is recommended for first-time buyers who do not yet have the programming cable.

USB VIN Programming PC TOOL

All Plug & Play VIN Emulator modules include USB VIN programming capability.

Using the provided PC software tool, users can quickly:

• read the current VIN stored in the device
• write a new VIN number
• reprogram the emulator at any time

The VIN is stored in the internal MCU flash memory, ensuring reliable long-term operation.

Technical Specifications

MCU-based CAN filtering system
CAN protocol: Classical CAN

Supported speeds:

• 500 kbps
• 250 kbps
• 125 kbps

VIN format:

17 characters (standard vehicle VIN)

Power supply:

via OBD connector

Installation:

• solder version – inline CAN wiring
• plug & play version – OBD extender cable

Typical Use Cases

The VIN Emulator is commonly used by:

• automotive diagnostic specialists
• ECU repair workshops
• electronics engineers
• automotive developers
• retrofit installers

Important Notice

This device is intended for professional automotive electronics use, including diagnostics, testing, and development environments.

Specification