Question about 1998 Cadillac DeVille
Repair manuals always say to take the negative terminal off before working on electrical parts. You only need the negative off, not both.
Actually, it wouldn't cause a malfunction (unless it maybe had a bad short), although it might set a trouble code. But that could be erased. I have heard that many mechanics are reluctant to take battery offline on lots of newer cars, unless absolutely necessary, due to issues with computer re-learning processes. When the car leaves the shop, customers complain the car is not running right, but if battery was disconnected, the computer may require several drive cycles to re-learn its former performance.
Posted on Feb 24, 2012
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Posted on Jan 02, 2017
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