Just what I needed to make my life eaiser...I recently purchase a preowned vehicle and after 4 months the check engine light came on...I am a female and just the fact that the light comes on...Get on my NERVES! I took it back to the dealer that I purchased it from, he sent me to the mechanic they used under the warranty, and the company paid for the sensor that went bad...4 weeks after that was fixed I got the check engine light again...Now they are not going to pay for it...Well the review that I gave for this car dealship hurt the company, I purchased this device and can check my sensors and engine myself.Easy to use...no set up...easy enough for a novice to take charge the first timeWorks like a charm...I was taught how to do it, look up the codes and clear the code if need be! I recommend this item to family and friends...