Quote:
Originally Posted by MS Fowler
Because there is a difference between simply reading the codes, and everything that might be available from the computer to help diagnose rather than simply throw parts at a problem.
I go to AutoZone and they give me about 2 feet of printout of ALL the possible sources. I want to know which of 12 possible components is giving out of spec readings.
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Lets not forget the convenience of having it at home to diagnose at will instead of running down to the store, assuming it is open and borrowing the equipment which may or may not be available and may or may not be exactly what you want.