OP-COM OBD2 Scanner – Installation Guide

✅ Step 1: Check system requirements

Before you begin:

• Computer: Windows 7, 8, 10 or 11 (preferably 32-bit for older OP-COM versions)

• Port: An available USB port (do not use USB hubs)

• Internet connection: Required for some installations (but sometimes disable for old drivers)

• Administrator rights: You need full rights on the computer

✅ Step 2: Download software and drivers

1. Vaux-Com or OP-COM software
   Must be compatible with your hardware. Common version: OP-COM 2012, 2014 or 2016.

2. Drivers for the OP-COM adapter
   Many versions use FTDI chips – download:

   • FTDI VCP (Virtual COM Port) Drivers: https://ftdichip.com/drivers/vcp-drivers/

3. If you have a Chinese-made clone, older, modified drivers may be required.

✅ Step 3: Install drivers

1. Plug the OP-COM adapter into the computer's USB port.

2. Go to Device Manager

3. Look for "USB Serial Port" or "FT232R USB UART"

4. Install the correct FTDI driver manually if Windows doesn't find the right version.

   • Right-click > “Update driver” > “Browse my computer for drivers”

✅ Step 4: Install OP-COM software

1. Unzip the ZIP file and run setup.exe as administrator.

2. During installation:

   • Allow access for firewall warnings

   • Temporarily disable automatic Windows updates to prevent the FTDI driver from being overwritten

3. Start the OP-COM program.

✅ Step 5: Test the connection

1. Go to the “Settings” or “Interface Test” tab

2. Click “Test Interface”

3. If everything works, you should see:
   Interface Status: OK
Firmware version: XXXX

4. Connect OP-COM to the car's OBD2 port, usually under the steering wheel.

5. Select the car model, engine, and system in the program.

🚨 Common problems and troubleshooting

❌ Problem 1: "Interface Not Found" or "No Interface Connected"

Possible causes:

• Wrong USB port / poor connection

• Incorrect or missing FTDI driver

• Compatibility issues with Windows version

Solution:

• Check device manager

• Install the driver manually (use an older FTDI driver if it's a clone)

• Try another USB port

• Run the program as administrator

❌ Problem 2: "ECU Not Found" or no connection to car

Possible causes:

• Wrong car model selected

• Car ignition not switched on

• OBD2 port on the car is damaged

• Poor contact or low battery voltage

Solution:

• Turn the key to ignition position (position 2)

• Select the exact engine and model in the program

• Test on another car if possible

• Check OBD2 pins

❌ Problem 3: "Firmware Mismatch" or program crashes

Possible causes:

• Wrong firmware version versus software

• Different versions are mixed (e.g. 2010 with 2014)

Solution:

• Always use the correct software version for your specific OP-COM adapter

• Avoid upgrading firmware if you don't know exactly which version your adapter is intended for

❌ Problem 4: “Access Violation” or similar error messages

Possible causes:

• Incompatibility with Windows 64-bit

• The program does not have the correct access

Solution:

• Right-click on the program → “Run as administrator”

• Run in compatibility mode for Windows XP SP3

📌 Tips

• Disconnect from the internet after installation if you are using a clone – Windows might otherwise update away the correct driver

• Never install multiple OP-COM versions on the same computer

• For stability, preferably use older operating systems (Windows 7 32-bit is most stable)

📚 Frequently Asked Questions (FAQ)

✅ Does OP-COM work with other car brands than Opel?

No. OP-COM is primarily developed for Opel and certain Vauxhall models.

✅ Is OP-COM the same as ELM327?

No, they are completely different systems. OP-COM has deep access to Opel-specific ECUs and modules.

✅ Can I use OP-COM with Mac or Linux?

Only via a virtual Windows environment (e.g. Parallels or VirtualBox)

✅ How much does OP-COM cost?

Cloned versions cost about 300–500 SEK, original often >1000 SEK and are hard to get.

🔗 Recommended store:

👉 Felkodslasare.se – OP-COM and OBD2 tools

Here is a detailed guide for installing and troubleshooting the OP-COM OBD2 Scanner, optimized to be helpful for both beginners and more experienced users. The guide is designed to suit users who want to diagnose Opel cars using OP-COM and covers installation, common problems, and troubleshooting.

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OP-COM is a popular diagnostic tool for Opel and Vauxhall that gives you access to fault codes, real-time data and advanced functions such as key programming and component testing. Here you will find a complete step-by-step guide for installation, use and troubleshooting – as well as an FAQ with answers to common questions.

✅ What is OP-COM?

OP-COM is an OBD2-based diagnostic equipment specially adapted for Opel and Vauxhall vehicles. The tool provides access to more systems than standard OBD2 readers and can, among other things, read and clear fault codes, display live data, perform component tests and carry out special functions.

📦 What is usually included in an OP-COM kit?

• OP-COM USB adapter (with FTDI chip)

• USB cable
  

• Drivers (often separate)

🖥️ How to install OP-COM (Windows)

1. Prepare the computer

• Recommended version: Windows 7 or 10 (preferably 32-bit)

• Temporarily disable automatic driver updates

• Run as administrator

2. Install drivers

• Connect the adapter via USB

• Download and install FTDI drivers from https://ftdichip.com

• Confirm in Device Manager that the device is recognized (USB Serial Port)

3. Install the software

• Unzip the OP-COM software

• Run the installation file as administrator

• Start the program and select “Test Interface” to check that the device is working

4. Connect to car

• Turn the key to ignition position

• Connect the adapter to the car's OBD2 port (usually under the steering wheel)

• Select the correct car model and system in the program

⚙️ Common functions in OP-COM

❗ Troubleshooting: If OP-COM is not working

Problem 1: "Interface not found"

• Check that the driver is correctly installed

• Use a different USB port

• Install FTDI driver manually

Problem 2: Program does not start or crashes

• Run as administrator

• Use compatibility mode (Windows XP SP3)

• Uninstall other OP-COM versions

Problem 3: No connection to the car

• Check that the key is in the ignition position

• Select the correct car model in the program

• Test on another car (could be a faulty OBD port)

❓ OP-COM FAQ

🟢 What is the difference between OP-COM and ELM327?

OP-COM is specific to Opel and provides deeper system access than ELM327, which only reads generic fault codes.

🟢 Does OP-COM work with other car brands?

No, it is optimized for Opel/Vauxhall. Some functions may be available on Saab.

🟢 Can I use OP-COM on a Mac?

Not directly. You need to use Parallels, VirtualBox, or similar to run Windows on a Mac.

🟢 How do I know which version I have?

It is stated in the program under "Test Interface" – where the firmware version and date are indicated.

🟢 Is OP-COM legal?

Yes, but you should use it on your own vehicles or with permission from the vehicle owner.

🟢 Why is 32-bit Windows recommended?

Some older OP-COM versions have issues with 64-bit drivers and work better on 32-bit.

🟢 Can OP-COM reset airbag faults?

Yes, in many cases. But it depends on the car model and software version.

🟢 Can I update the firmware?

Only some original units allow it. Updating on clones can "brick" the device.