In this page, you'll find the DEMO version of OP-COM.

The development of OP-COM started back in 2003, and in the beginning of 2004, a very badly written software appeared on the Internet, under the name of TECH2. Since, this was an early version, only intended for our beta testers, and this was an UnOfficial release of the software, you couldn't expect much from it, most of the UI, and the fault code database was still in Hungarian language. And as it turned out, Hungarian is not a widely spoken language... :)

As time passed, several variants were published by unknown authors, some of them was not so healthy to your computer.
Anyway, later, in 2006, another cracked version of the OP-COM software is appeared, under the name, of AB-COM.
What a coincidence, some might say... :) At this time, one of our old Demo version was modified, back from 2005.

Primarily, I was not thinking of releasing a DEMO version of the software, but after all these events,
I decided to give green light to the DEMO version.

The DEMO version works with almost any Opel in the range of 1997-2007, where the communication is not based on CAN-BUS.

This  DEMO version has the following  limitation:

Only the first two DTCs will be shown with full DTC text.
Only the first twenty measuring blocks will be shown.

All of the following advanced functions are disabled:

Key-Learning to the immobilser
Key-Learning to the CDL/Alarm
BCU,IPC,ECM programming
Program Service interval
Reset adaptation values
Running output tests
Coding Airbag
Coding Injectors on MultiJet ECU
Setting parameters on EDC15VM
Saving of DTCs are disabled
Printing of DTCs are disabled


To be able to use this demo version, you need a decent COM-PORT based interface.

Please note, that I really recommend you to use a valid serial port.

Nowadays, it's very hard to find a suitable computer with a real, and properly working serial port, but the program really needs it. The USB/Serial converters can be used, but the proper operations cannot be assured. If you have communication problems, or cannot get your interface properly communicate with your car, I recommend you to use a REAL serial port.

One thing is very important in communication with control modules, and this is the TIMING. USB to serial converters adds unwanted latency to the data traffic, and signals, and these will affect the communication, and in the worst case, communication cannot be acheived with the control module.

Other thing, which must be note, is the selection of the communication pin. Since Opel uses 4 individual pins in the diagnostic socket, #3,#7,#8, and #12, to be exact. In some interface desing, all of these pins are simply connected together, which is not wise. If you want to ensure proper communication, you cannot connect all pins together, because in this way, you will suerly violate the communication standard, and most of the cases, proper communication cannot be acheived.

To ensure proper communication, please only select one diagnostic pin at a time. The program tells you every time, which pin should be used for communication.

Of course, the Professional version of OP-COM does not have any communication problem with its USB port based interface, since our interface uses microcontroller to ensure proper timing. 



Here is the latest DEMO version of OP-COM, which works with a serial port based interface (ISO, or K-Line)





If you encounter any problem, or your engine code, or any other subsystem only has Fault code readout, please send us the content of the DebugFiles folder. In this way, you'll help to make OP-COM better.