7 warning lights just came on

I'm new to this forum and have scoured the archives looking for a solution to my problem, and found none.

While driving my 1991 560SEL, 7 of the warning lights came on.

On the left side --> Battery, Brake, Pad wear, Low oil, Low coolent (all but the high beam light)

On the right side --> Wiper fluid, Exterior bulb out (ABS, SRS, and Check Engine lights function normally, on at ignition, off just after)

Can anyone offer any insight as to where I should check first? I have checked all of the fuses and all meter OK. I pulled fuse #6 and the most of the lights go out.

In case it has anything to do with it, the battery was replaced a month ago.

The car starts and runs fine, I'm just not sure for how long though......

Thanks in advance for any help.