Ducati Diavel 2014 Owner's Manual page 70

Disabled Traction Control (DTC)
The activation of this "warning" (amber yellow)
indicates that DTC (Ducati Traction Control) is
disabled.
Note
In this case, Ducati recommends paying special
attention while riding as vehicle behaves differently
from when the Traction Control is active.
DTC
OFF
Fig. 37
69