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Why even have codes. Make it display in plain English what the problem is? Maybe display an out line of a car with an indication where the problem was detected.
My van threw three or four codes at once when the battery was on the way out. When I put in a new battery, all the codes vanished. Imagine if I had replaced those parts, or worse, taken the van to the shop for them to diagnose and fix everything... only to find that nothing was wrong except for the dying battery.
Which is one code they don't have and should, Battery Voltage Low, and the programming to prevent the false codes from showing.
In the post I was responding to, the car started and drove, so the computer was working to some extent. You would think the Power-On Self Test would find a low voltage condition and at least report it.
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