Which tools are used to do car diagnostics?

[Kross]

Car diagnostic tools as I have heard are those tools that you can use to analyse your car for anomalies. For those of us that drive, have you ever used car diagnostics tools on your car?

Which car diagnostic tools do you know? And how does car diagnostics tools work generally?

 

[Stardom22]

In my country l oftenly the car diagnostic tools mostly in the garages and automotive repair centres for that matter.