I have a 1988 Cadillac Fleetwood Brougham with auto. Trans. The battery drains overnight. I have tried removing the fuses one by one with a volt meter connected between the negative batter post and the negative battery cable. The volt meter kept a 12 volt reading which indicates that those circuits were working properly. This was done with the ignition switch in the off position. Is there any other checks that I can do, other than taking the car to the dealer, to try to locate the cause of the of the problem? Thank you very much.
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