Alpha OBD won't access abs

[Flryder]

I purchased Alpha OBD and the OBDLink LX for my 2012 1500. I need to do an ABS bleed after I replace the abs module and pump. When I try to access the ABS function, Alpha OBD gives me a connection failure message after 4 attempts. I can access functions like body computer and instrument panel. I selected the OBDlink LX because it was on the supported vehicle list from Alpha OBD. Would the MX+ dongle solve this problem?
Thanks,
Dan