Ok guys, time to help this little old granny with a 99 deVille and lights that stay on. Namely the ABS and Traction Control lights. I checked the codes and got TCS C1242 current and TCS C1255 history. I also have a high pitched whistle in engine compartment when idling and of course, the usual oil consumption problem. My main concern is the warning lights, they are driving my husband crazy.