Wabco is the Hydraulic ABS system used on the 2004 and forward F650/750 Medium Duty trucks. It also refers to the PC-Based diagnostic program used to display system faults, wheel speed data, test individual components, verify wiring installation and more.
You may need to initialize the comms port in the WABCO software. Follow these steps:
Open the WABCO application from the Launchpad.
Select "System Setup" from the upper left corner.
Select " COM Port" from the drop down menu.
A window titled "Device Settings" will appear.
Accept the default settings by clicking "OK".
The diagnostic tester should now communicate with the WABCO ABS module. This procedure will need to be followed the 1st time that the application is used following the installation of the Wabco diagnostic application.