Software Use and Dongle Activation

In order to use the software you are to install the dongle driver. You can download detailed instructions here.

You are to connect the USB dongle to your PC only AFTER you install the Guardant drivers. If the dongle is connected before the driver installation and Windows Hardware Installation Wizard has started, you are to disconnect the dongle from the PC and cancel the Wizard.



  1. Install Guardant driver selecting the appropriate one for your operational system.
  2. Restart your PC if needed.
  3. Connect the dongle to a USB port.

You are to install the drivers on all PCs you are planning to work on. However, the dongle is activated (if needed) only once and on one of those PCs. After the activation the dongle stores the necessary parameters. Activation is required for dongles received by mail and is described in detail above.

As a rule the dongle firmware will be updated together with the software releases. In this case you will get a warning: 

All updates are automatic and do not require any specific actions. It is enough to confirm your intentions to use a new version. Update takes just a few seconds. If you buy other modules in future, you can activate them using “Settings” button, see below.

The PCM Flash is an integrated software solution intended for engine and automatic transmission ECUs of Volkswagen, Skoda, Ford, Mazda, Nissan, Subaru and Honda vehicles. It supports work via ADS adapter (version 1) as well as via any J2534-compatible adapter if there are appropriate drivers and libraries. It has been tested with OpenPort 2.0, Mongoose JLR, MongoosePro JLR, Teradyne GNA600 (VCM 1), Mazda VCM 2. The software is marketed on a module basis and has simple and clear interface. The Guardant key is used for the protection from unauthorized access.

It supports flashing both backup (vbf) and binary (bin) files. When flashing binary files checksum verification and correction is available for most of the modules.

ECU type selection:

Possible options and file selection:

Programming process:


  • Software (sent via email)
  • USB-protection key
Brand: PCMFlash

Basic set:

Serial Number:


PCMFlash software modules: