Paid one Launch CReader 4001 DIY OBDII EOBD code reader to resetChevrolet car check engine light on, it really does what I paid for, it successfully diagnose (Read erase codes, read datastream, etc). I love it also because it is really pretty fast and small possible for my hand.
Launch CReader 4001 Test reports:
Read codes…confirmed
Erase codes…confirmed
I/M readiness…confirmed
Data stream (View all items, select items, view graphic
items)…confirmed
On –board monitoring…
Vehicle information…not supported
Pictures speak louder than words:
PS: really fast and