ABC malfunction sign ???? on 2003 Mercedes-Benz SL500

i have this ABC malfunction in dashboard, the car been sitting for awhile ( 2months)

by in Bronx, NY on April 04, 2014
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , April 04, 2014
I think that neans u gotta count your abc's