Opcom 1.99 Download ((top)) Jun 2026

Opcom 1.99 will not work with generic ELM327 cables or Bluetooth dongles. It requires a dedicated Opcom interface.

Despite being over a decade old, Opcom 1.99 continues to serve thousands of GM owners worldwide. Its ability to perform dealer-level coding, key programming, injector learning, and module configuration is unmatched at the price point (free software + ~$30 hardware).

: Access Engine, Automatic Transmission, ABS, Airbag, Instrument Cluster, and Body Control units. Opcom 1.99 Download

software used with the v1.99 firmware for Opel, Vauxhall, and Saab vehicle diagnostics. This specific version is commonly used with aftermarket "clone" interfaces featuring the PIC18F45K80 Auto Tools SA Key Software Details Software Version: Primarily uses Vaux-Com 120309a or "2014V" editions. Operating System: Officially supports Windows XP

: View Diagnostic Trouble Codes (DTCs) with detailed descriptions. Opcom 1

OPCOM 1.99 was originally designed for older Windows environments. Running it on modern systems requires specific workarounds. Operating System Compatibility Status Required Steps Fully Compatible

Reasons for the high demand include:

Using Opcom 1.99 for personal diagnosis on your own vehicle is in most countries. However: