Ddh1

Hey, just wondering if anyone has any ideas about what this could be... I have a 2002 Mustang V6 but I don't really think that should matter too much, but just recently, a couple lights started coming on sometimes. Every now and again, the ABS light will come on, and when that goes on, the Trac stays off, as in the light for that button is lit. Driving down the road, they'll come on sometimes, sometimes they'll come on when I start the car, other times they won't come on at all. They are always doing that together though. It's not just one or the other, it's always both. My guess is theres something going on with the brakes which is making the car stay in one wheel drive, right rear, but that would be the "Mr. Obvious" answer I think... Alright, any ideas/suggestions are appreciated, thanks.