USB adapter C to A


   

Prefered for casual users.
OBDII Bluetooth adapter with auto off.
Link for More info or Purchase.
 
Not as fast as wifi but more reliable generally.
Easier to setup

---

Highly Rated no auto off advertised
Link for More Info or Purchase

---

For shops or serious users.
OBDII wifi adapter with auto off.
More range. Faster, Local Network
Can be frustrating to set up.

Free

Car Scanner ELM
Popular and Free
In the app store.


Adds


If you wish to clear codes many use Torque (video).
It does not have the best reviews but it has
the tools necessary for clearing codes. If the problem is persistant the light will 
return meaning that repairs are in order.

---

..