Ducati Diavel
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Ducati Diavel Service Manual: The battery charging circuit and power distribution

On the diavel, the +15v (key on power) voltage does not come from a conventional ignition key, but from pin 30 of the hands free relay. This relay is switched to closed state by the hands free unit when the latter enables power on for the ignition and engine. The hands free relay receives +30v voltage (battery voltage), protected by a general 30a fuse.

The three phase alternator has three windings (l1, l2, l3), connected to one another in a "triangle" or "delta" configuration. The electrical terminals r, s and t are connected to the voltage regulator.

The battery charging circuit and power distribution


The drawing illustrates the "triangle" or "delta" configuration connection of the three windings of the three phase alternator.

The voltage regulator is constructed with specific electronic circuits (using mosfet instead of scr diodes) which limit operating temperature and, as a result, improve reliability. The regulator can withstand a maximum current of 50a (maximum current for the regulator used on sbk models is 35a) and has integrated waterproof electrical connections.

In the event of incorrect battery voltage (too low or too high), the message "battery" is shown in the service display. The dds also indicates if an excessively low or high battery voltage is detected (battery voltage diagnosis: high voltage, low voltage).

In the event of a battery charging circuit fault, check the following in the order given:

Riding modes
The rider may select between four different riding modes (sport, touring, urban and enduro) from the dashboard and via the "turn indicator reset" button (3). Each riding mode contains settings for ...

Ground connection locations
The negative cable, which is normally connected to the negative pole of the battery, is fastened to the crankcase. From here, the cable branches off and splits up within the electrical system to ca ...

Other materials:

Removal of the clutch transmission unit
Warning The manufacturer of the clutch transmission unit (15) advises against servicing of its internal parts due to the safetycritical nature of this component. Incorrect overhaul of these critical safety components can endanger rider and passenger safety. The only components that shoul ...

Specific tools for the frame
88713.1072 Drift to install half bearing in bottom yoke 88713.2562 Chain assembly tool 88713.1058 Wrench for steering shaft nut 88713.1062 Tool for installing steering head bearings 88713.2951 Rear wheel balancing tool 88713.3211 Wrench for adjustment of the eccentric hu ...

Disassembly of the oil pump
Hold the oil pump (1) in a vice taking care not to damage the drive gear (12). Warning Make sure that vice jaws are faced with soft material. Remove the plug (14) and extract the spring (16) and by-pass valve (17). Check the condition of the above components. Remove the circlip (6) ...

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