OP-COM is a great diagnostic device used solely for OPEL, Vauxhall + Saab Vehicles. It can perform almost all Dealership functions – such as read and clear fault codes, display live data, perform output tests. Immobiliser support, remote and key fob programming, change variant coding of various control units, and a lot more. It has great fault finding procedures, and when it comes to the in depth parts of Vauxhall / Saab, we would be lost without it!