Multiple ABS/TCS codes, 01 Impala LS, just got it

I just got an 01 Impala that has the abs,tcs lights on and I get the service traction control message when I first start it. So far I do know that I need to replace the right rear hub, but I threw a scanner on it and got 9 codes, I'll list them. Also the previous owner told me they came on last winter while going through some deep snow with it. I'm just wondering where to begin or if one thing could cause all of these and there is a couple of them I don't quite understand. Any help would be appreciated.

1) C1216 EBCM Commanded Pressure Release Too Long (not sure about this one)

2) C1224 Right Rear Wheel Speed Sensor Input Signal 0

3) C1228 Right Rear Excessive Speed Sensor Variation

4) C1232 Left Front Speed Sensor Circuit Open/Shorted

5) C1235 Right Rear Wheel Speed Sensor

6) C1245 Low Tire Pressure Detected

7) C1248 EBCM Turned On Red Brake Warning Indicator

8) C1254 Abnormal Shutdown Detected (another one I don't understand)

9) C1298 Class 2 Serial Data Link Malfunction (don't understand this either)


Again thank you for any idea's or pointers on how I can solve this.

If possible get a scanner on it that can look at each wheel sensor speed input, the ones that show low or 0 should be checked for bad connections or the sensor is bad, When you have that resolved, clear the codes or just let the abs go thru self diagnositics and see if is corrected.

this weekend I'm going to be looking things over. I know it needs a right rear hub, which I'm pretty sure is causing all my right rear codes. Left front I'll have to look at and a couple codes I just dont understand. I just got the car on monday so I havent had alot of time to do much with it yet and other then abs and tc codes it seems to run/drive great. I'll also get my buddys scanner on it and see what we can figure out. Thank you