Hello ,

Ever plug in your scanner, and… nothing happens?

No communication. No power. No diagnostics.

Frustrating, right?

The OBD-II port is your car’s gateway to diagnosing and repairing problems. When it stops working, you’re left in the dark. Worse, a non-functional OBD-II port could mean you fail your emissions inspection, costing you time and money!

The most common culprits?

🔋 A dead or dying battery

🚫 A blown fuse

⚠️ But wait—there’s more! Damaged pins, faulty ECUs, and wiring issues can all keep your scanner from connecting.

Want to fix it yourself and save money?

We’ve put together a step-by-step troubleshooting guide to help you figure it out—fast!

Did you know? You can now use a YOUCANIC Pro scanner to test if your OBD-II port has power!

Best regards,

The YOUCANIC Team