Ducati Diavel Workshop Manual page 294

Introduction to the engine control system
Location of clutch button connection.
Connection wiring diagram
CCM engine control connection, S clutch button. 2 ground, black - Bk, 1 white - W.
In the event of fault
In the event of a clutch button fault, the operating conditions described in the introduction are not met.
Fault codes generated and possible correlated faults
The engine control unit generates no fault code in the event of a clutch button fault.
No errors are indicated on the dashboard.
Possible correlated faults: the safety conditions required to enable engine start are not met, incorrect idle speed (target
idle speed is 1350 rpm with engine stabilised at operating temperature). Check:
- Integrity of electric circuit (open circuit, short-circuit to ground and toward Vdc) and of the electrical connections.
- Integrity of the clutch button. When the clutch lever is operated (pulled and released), the resistance on the button
contacts (PIN 1 and PIN 2) must be zero in one position (continuity) and infinite in the other (open circuit).
Note
Check integrity of electric circuit – short-circuit to Vdc = with dashboard on, using a voltmeter, a voltage is measured
between the wire tested and ground
Check integrity of electric circuit – short-circuit to ground = with the battery cables disconnected, using an ohmmeter,
continuity is detected between the wire tested and ground
Check integrity of electric circuit – open circuit = with the battery cables disconnected, using an ohmmeter, no continuity
is detected between the two ends of the wire tested.
The DDS instrument can be used to display the activation state of the clutch button.
If none of the aforementioned tests identify the problem and the clutch button is in proper working order, replace the
engine control unit.
Component replacement methods
No special measures are necessary in order to replace the clutch button.