Ducati Diavel Workshop Manual page 277

Introduction to the engine control system
(engine control unit), which constantly compares the signals against each other and verifies their consistency. In the
event of inconsistency or a fault, the error is indicated and the throttle valve actuator motor is disabled.
The information provided by the APS is used by the engine control unit to determine what is known as the "torque
request" made by the rider - in other terms, the performance required of the engine by the rider.