I have a 96 SL1 which I'm having a problem with all of the lights flickering. This happened before and it turned out to be the alternator, but now it is doing it again and the alternator is checking out ok. Also, the check engine light has come on ( have not checked the code yet). Any help for other possible causes for entire electrical system glitches would be appreciated. I'm leaning towards a possible BCM problem.

battery

Thanks for the help.