Opcom is a Windows-based diagnostic program specifically designed for Opel and Vauxhall vehicles. It interfaces with the car's computer via an OBD2 cable containing a specialized Microchip PIC microcontroller.
Supports nearly all Opel/Vauxhall models from roughly 1996 up to 2014, with good coverage for 2015+ models depending on the software version.
April 20, 2026
The is a specific software update for the Opcom diagnostic tool [1, 2]. This tool allows car owners and mechanics to diagnose Opel and Vauxhall vehicles [2]. Firmware version 1.67 balances stability and vehicle compatibility [1]. What is Opcom?
Often bundled by vendors specifically to match the 1.67 communication protocols. Opcom 1.67 Firmware
The firmware is the internal software living on the interface's microcontroller (typically the ). Version 1.67 is often the final stable, "real" firmware released before various manufacturers began labeling clones with inflated version numbers like 1.70, 1.95, or 1.99, which are often just 1.45 or 1.64 in disguise. Key advantages include:
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Best for: Technical forums, Reddit, or a car enthusiast blog.
For Opel and Vauxhall owners, finding the right diagnostic tool often leads to a confusing array of hardware versions and software labels. Among these, is widely considered the "sweet spot" for reliability and functional depth . Unlike generic OBD2 scanners, this specialized interface provides dealer-level access to almost every electronic module in vehicles from 1987 up to 2016 (and some up to 2021 with the right software). Why Firmware 1.67 Matters April 20, 2026 The is a specific software
OP-COM is a PC-based diagnostic program designed specifically for Opel and Vauxhall vehicles. It covers a vast range of models, from older cars using OBD1 systems to modern vehicles utilizing CAN-BUS protocols. Core Capabilities
Launch the OP-COM software executable (often requires running as Administrator). Go to the menu. Click Test Interface .
Windows will block aftermarket OP-COM drivers by default because they lack a digital signature.
Navigate to > Advanced Options > Startup Settings and click Restart . What is Opcom
Are you looking to , or are you setting up the tool for the first time? Share public link
If you are still tinkering with Vauxhall/Opel models from the early 2000s, you’ve likely come across the infamous for the OP-COM interface. But is it still worth buying in 2024?
: Shows real-time sensor readings while the engine runs [2].
In the Windows Device Manager, a legitimate or high-quality clone running firmware 1.67 identifies itself specifically as:
Enter . Originally a professional diagnostic software, it was the key to the kingdom. But the official hardware was pricey, leading to the "Clone Wars." The Rise of the Clones
Do not change configuration settings if you are unsure of the outcome, as this can disable car modules. Summary Table: Opcom Versions 1.39 Older OBD2 (pre-2005) 1.59 General Use / Versatile 1.65/1.67 Astra-H, Vectra-C (2005-2016) High 1.70+ Newer Models / CAN-BUS Variable (depends on clone quality) Conclusion