98 Eldorado ETC: ABS, Traction, and Serv. stability system. Help!
 

I have a 98 Eldorado ETC. I have a traction control light on, ABS light on, and service stability system. I pulled the codes and this is what I got as the current ones:
PCM P0300
PCM P1380
ACM B1347
TCS C1235

Please, if you could tell me whats wrong I'd greatly appreciate it. Thanks

RE: 98 Eldorado ETC: ABS, Traction, and Serv. stability system. Help!
 

Not sure I can help much, but I can give you the code meanings. One of the marvelous Tech's will be around shortly.

PCM P0300 - Engine Misfire Detected
PCM P1380 - Misfire Detected - Rough Road Data Not Available
ACM B1347 - Very Low A/C Refrigerant Warning
TCS C1235 - Right Rear Wheel Speed Circuit Open or Shorted