What you can check
- Read a Vauxhall check engine light with a free Basic Scan.
- Use the same Android app and ELM327 adapter you would use on other UK brands.
- Move to Full Access only if the free scan shows the car is communicating.
Vauxhall
Vauxhall diagnostic app for Android
Vauxhall is the UK name on cars that are Opel elsewhere. BTK-Auto recognises Vauxhall and Opel in that family. Corsa, Astra and Mokka are the models most UK owners ask about. Recognition of the badge is not a promise that every module on every year will answer.
Basic Scan is the free check for a check engine light: stored and pending OBD-II codes, VIN, lamp status and voltage when the ECU exposes them. Full Access adds live data and supported service actions where that car and the ELM327 adapter allow them.
This is not Vauxhall dealer software and it does not program keys or immobilisers. A classic Bluetooth ELM327 is required.
What this does not promise
- Match a Vauxhall dealer tester on every ECU.
- Cover every Corsa, Astra or Mokka year with the same module list.
- Accept a BLE-only adapter.