Misfire and lots of codes

[Hastings 06 denali]

I have an 06 envoy denali with 90k miles. Within the last month my oil pressure sensor, fuel level sensor, dash lights, and now a bad misfire has hit me.

I have the codes...

C0455
C0196 both wheel speed sensors i believe

P0300 random misfire
P0463 fuel level
P0522 oil sensor
P0522 misfire #4


And the one I can't figure out U 1017.

From what I can gather the u1017 is due to no communication from the tac to pcm. But I cant find out why or what to check. Any information would be greatly appreciated. From what i read you shouldn't start changing parts until you figure out the u1017 because it may be causing the other issues.

 

[carid]

That's right OBD-II Trouble Code U1017 - Loss of serial Communications for class 2 devices
DTC Description: Loss of serial Communications for class 2 devices. Subsystem Fuel & Air metering