Anti skid fail with Box 1-4 message during Bite
Bad anti skid valve
There is a FIM task for this fault message, but in most of the cases seen so
far it ends up being a anti skid valve which you find by checking resistance per FIM 32-42
task 804,paragraph F. (c), 180-240 ohms
The FIM starts you out trying a Anti skid module and some other things before
it moves you on to checking the valves.
FIM 32-42-Task 804
Thanks to Tom S. for his input !