No. Nowadays, many professional drivers or modern car owners also use the car's Diag device to check the car's status, prevent possible failures and reduce the cost of repair.

No. Some Diag devices are only compatible with specific brands or models. For this reason, when shopping from stores such as car fan, it is best to consult with consultants and get your car suitable.

Yes, after fixing the main objection, the Diag device is capable of resetting the check engine and turning it off.