They hooked up the computer to the bus and found the same fault code I gave them from the Pro driver readout (127 I) That equats to a power failure in the ABS system so they pulled the relay and the code didn't clear. Replaced the ABS ECU and reinstalled the relay and the code cleared and fault disappeared after a short drive. Looks like I need to find a ABS ECU since they want over a $1000 for one here. I checked Buddy Gregg and my wholesale price was about $750 for the ECU. I'm thinking there has to be a wrecked Prevost XLII out there just begging for me to have the ABS ECU. Any ideas where?