01 / GUIDE

Start at the controller

Confirm the ECU model, hardware and firmware. Use the connection method specified for that version rather than assuming that another controller with a similar port uses the same interface.

02 / GUIDE

Separate the connector from the protocol

USB, a 9-pin connector or an RS232 description does not establish complete compatibility. Physical shape, electrical level and communication protocol are separate checks.

03 / GUIDE

Check the computer side

Identify the operating system, software release and required driver. Historical support for an older Windows release does not establish compatibility with a current system.

04 / GUIDE

Tell us what you already have

List existing cables, adapters, software and the computer system. This helps distinguish a missing driver from the need for a different interface.

Checklist & example

  • ECU / firmware → port / pinout → electrical protocol → interface.
  • Computer OS → driver → tuning-software release.
  • Record existing equipment and verify each step before connection.