changed alternator, now ABS and TRAC light are on...what does this mean? Help on 1999 Chrysler 300M

Alternator and battery was keeping full charge had to be charged everyday, took to an auto store they diagnosed it to be a bad alternator now this is brand new and now these lights came on....p1684 says just that the battery had been disconneted within the last 50 starts

Asked by for the 1999 Chrysler 300M
Have ABS scanned should tell you the problem. ABS & TRAC. know each other. Did this
happen just as soon as alt replaced? Did you go back to shop that did the swap?
1 more answer
scan abs codes and post so we can adv