Google Diagnostic
Used by "Do It Yourselfer" to find out what's wrong with something. Person that uses Google search engine to check forums and topic specific web sites to find what part they should throw at the problem. Can be used for a check engine light on a car to a washing machine or a PC with the blue screen of death.
My engine light was on so I did a Google diagnostic and all the people on the forums say it needs a putooter valve. I replaced it and my lights still on,wtf