Connect the dongle, start the car and make a terminal connection with the dongle.
There is an automated testing process in the experimental section of CanZE, right now under the “Playground (Jeroen)” screen, but it will move up to production soon.
If you insist on trying by hand, install something like Bluetooth Terminal on your Android device, and connect to your paired ELM dongle.
Send atz first. For knockoffs, all answer will be lies, but ELM327 v2.1 is a worse lie than ELM327 v1.5.
Now send the following commands:
All should answer OK
If all answers are OK, that is good and go on. If not, forget it, don’t even try this dongle with CanZE. Now try
Something should come back starting with 06622006. If not, dismiss this dongle.
You should see a new line with data about every second or so. You can stop it by sending atar
If it works as expected, there’s a reasonably good chance the dongle will work for CanZE.