OBD2 HH OBD ELM327 V1.5 Bluetooth OBD2 CAN BUS Check Engine Car Auto Diagnostic Scanner Tool Interface Adapter For Android PC

ELM327 OBD2 Scanner Connection Failure selfcheck on phone:

It is based on bluetooth 2.0.

1.Car is not supported.

2.Engine is not ignited.

3.You need confirm the connection way.