Ducati Diavel Service Manual: Checking protection and safety device components
Checking the side stand switch
Remove the switch (1) from the side stand undoing screw (2) and disconnect the main wiring connector from the switch (see paragraph "routing of wiring on frame", sect. 6 - 1).
Use an analogue or digital multimeter (sect. 6 - 11, Using a multimeter to check the electrical systems) to check switch operation (see table).
Note
The same test may be carried out using the "dds" tester (sect. 6 - 11,
Diagnostic instruments). 
0 = Open contact
X = closed contact
Refit switch (1) to side stand and tighten the screw (2) to a torque of 5 nm +/-10 (sect. 3 - 3, Frame torque settings).
Checking the fuses
The main fuse box (1) and the secondary one (2) are located in the tool tray;
to reach the fuse box remove the seat as
specified under sect. 5 - 3 "Removal of the seat".
The fuses are accessed b ...
Other materials:
Checking the camshafts and supports
Check the cam contact surfaces for scratches, grooves, steps and waving.
Worn cams are frequently the cause of poor timing, which leads to loss of engine
power.
Place the camshaft between two centres and check the run-out on the areas
indicated using two dial gauges.
Service limit: 0.1 ...
Instrument panel on handlebar
Lcd.
Neutral light n (green). Illuminates when the gearbox is in neutral.
High beam light (blue).
It turns on to indicate that the high beam lights are on.
Engine oil pressure light
(red).
Illuminates when engine oil pressure is too low. It must turn
on at key-on, but ...
Key-on/key-off using the red key on the handlebar with the active key
A key-on can be performed by pressing the red key (6) on
the handlebar in the hands free on/off position and in
the presence of the active key (3, fig. 77).
Note
The active key (3, fig. 77) Has a range of approx. 1.5 M,
therefore it must be located within this range.
Key-off can be performed ...