. >> to show us how amazing carmd is, we sent john curley out to meet with people just like you whoselights have come on but have no idea what's wrong with their cars or what it will cost to fix them. they're gonna see for themselves how carmd can save them time and money. >> my light keeps coming on and off. >> why don't you take it in? >> they told me they needed up-front money for them to diagnose it. >> they wanna charge $100 to just plug it in and look at it. >> i'm afraid of what it might be. every time i take this thing in, it's 500 bucks at least, just to get it tested. >> it's $150 just to do the diagnosis. >> right. >> and then they have all of these problems they say it has and then they charge you an arm and a leg. >> so what if you could diagnose it yourself? >> that would be awesome. >> are you ready? >> yeah. >> all right, here we go. you are about to find out what is wrong with your car. so look at this, big green check for you, which means your engine is fine, o.k.? here's the interesting thing. 'cause there's been a recall on the seat belt latch on the front seat. an