IOCAN

# About IOcan

IOcan is a professional CAN gateway designed to make modern OEM automatic and

dual-clutch transmissions usable outside of their original vehicle environment.

Modern transmissions such as the ZF 8HP, DCT/DKG, and PDK are deeply integrated

into OEM vehicle architectures. They expect a constant stream of CAN

communication from engine, chassis, and driver-input modules, and without that

ecosystem the transmission simply does not function. IOcan solves this by

recreating the communication environment the transmission expects, allowing it

to operate reliably in standalone setups, engine swaps, custom vehicles, and

motorsport applications.

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## Designed for Standalone Transmission Operation

The primary purpose of IOcan is to let OEM transmissions run independently of the

vehicle they were originally designed for. Acting as an intelligent CAN gateway,

IOcan translates signals from standalone ECUs, driver controls, and vehicle

systems into the native OEM protocol the transmission control unit requires.

From the transmission's perspective, IOcan behaves like the missing OEM modules,

allowing full functionality without factory engine or chassis electronics. See

[[Wiring Concepts]] for how the vehicle and transmission sides are separated and

connected.

## Flexible Gateway and Protocol Translation

IOcan connects multiple CAN networks and protocols simultaneously, translating

between them in real time. This makes it compatible with a wide range of

standalone ECUs as well as selected OEM engine and chassis communication

standards.

Driver commands, engine data, and vehicle signals are converted into valid OEM

CAN messages, ensuring predictable and stable transmission behaviour regardless

of the surrounding hardware. The full list of supported modules is maintained on

the [[Supported ECU|Supported Vehicles & Modules]] page.

## Versatile Driver Control Options

IOcan gives the user full freedom in choosing how the transmission is controlled.

Supported input methods include:

* sequential shifters

* paddle shifters

* OEM gear selectors

* CAN-based keypads and button panels

* custom combinations of multiple input devices

The control logic is fully configurable, allowing IOcan to translate any

supported input into the correct OEM commands. This makes it equally suitable for

road cars, race cars, and experimental setups. See [[Configuration Concepts]] for

how inputs are mapped and processed.

## Integrated Power Management

Unlike simple CAN interfaces, IOcan is a complete transmission integration

solution. The device features a dedicated semiconductor relay for powering the

transmission and managing its wake-up behaviour.

Thanks to its low-power design, IOcan can be connected directly to a constant

battery supply through a fuse, eliminating the need for external relays. Only five

vehicle connections are required:

* Battery positive (BAT+)

* Ground (GND)

* Ignition signal (KL15)

* CAN High

* CAN Low

All transmission power sequencing, wake-up signalling, and shutdown handling are

managed internally. IOcan can also measure the transmission's current draw,

providing additional insight into system behaviour and safety. Electrical limits

and ratings are listed on the [[Technical specifications|Hardware & Electrical Specifications]] page.

## Diagnostics, Adaptations, and Firmware Control

IOcan goes beyond basic control by offering service and development capabilities.

When connected to a laptop, it allows diagnostic access to supported

transmissions.

For BMW ZF 8HP applications, this includes:

* reading diagnostic trouble codes

* accessing and monitoring adaptation values

* live status and operational data

IOcan can also flash OEM 8HP transmission control units with custom firmware and

read TCU memory, making it a capable tool for development, calibration, and

advanced integration work. Support for additional platforms, including DCT and

PDK transmissions, is planned.

## Built for Integrators, Builders, and Developers

IOcan is aimed at professionals and advanced enthusiasts who need a reliable way

to integrate OEM transmissions into non-OEM environments. Typical applications

include:

* engine swaps using modern automatic or DCT transmissions

* custom vehicle builds and restomods

* motorsport and track vehicles

* transmission retrofits into non-original chassis

* development, testing, and reverse-engineering projects

By combining intelligent CAN gateway functionality, protocol emulation, flexible

control inputs, integrated power management, and diagnostic capabilities, IOcan

provides a compact, purpose-built solution for running OEM transmissions where

they were never intended to run.

## Where to next

* [[Getting Started with IOcan]] — install, wire, and validate your first setup

* [[Supported ECU|Supported Vehicles & Modules]] — check compatibility with your build

* [[Wiring Concepts]] and [[Configuration Concepts]] — understand the system before configuring

* [[Technical specifications|Hardware & Electrical Specifications]] — electrical limits and interfaces