Thanks for the information! Do you have a site/diagram for a 98 Blazer ABS system though?

 

Sorry for the delay in reply. Been out of town and far removed from the issues with the truck.
I replaced LF hub assembly b/c I had been putting it off. After finishing, I checked the EBCM connections and they all appeared to be fine.
Ran out of time(and daylight) drove it to work the next morning and the lights were gone. haven't seen a check engine light since.
You think its possible that all those codes were thrown b/c of the bad hub? Should I be concerned still or does no light mean "all is well"?
Another thought, if the ABS had a complete system failure would the brakes fail or would it just allow me to lock-up the wheels?

Thanks for all your help.

 

That would make sense, the ABS sensor is inside of the hub, so if the wheel bearing was jacked it could have damaged the sensor in the process.

 

Does the '03 Blazer have the hub with the plug for the abs?

 

Yes it does