I have a 2003 cadillac deville dts battery not charging came on display drove car for 3 days thinking it would correct itself, Dash light come and go randomly, PCM? Car finally died 3 days later after dash lights started dancing and dash went black/dead. Took car to autozone they said it was a bad battery i knew it was the alternator bought a new battery and an alternator from o'rileys. Changed alternator car is running good. Heres the thing drl's not on/working when they used to automatically come on any other time. Anytime i turn my lights, turn signals or ac on car stalls and dies. Brake l