I have a 2001 Saturn SC2 with 4cyl engine and manual transmission. It needs a new battery. If I remove the old battery and install a new one myself, will that ''clear'' the computer chip? If so, is there a way I can prevent that? I've heard about a 9 volt device that plugs into the cigarette lighter. Would that work?
No, it will not clear the computer. You can safely replace you battery and not worry about the computer chip being cleared. This will no more erase the memory from the computer in your car than unplugging a computer will erase the hard drive on a PC. The ECU memory is programmed in and will not be erased. It may erase the radio code & presets and require you to insert it again but that is all.
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