Ducati Diavel
Free Service and Repair manuals

Ducati Diavel Service Manual: Starter motor relay

Introduction

When the rider presses the start button, with all the safety conditions required to enable engine start met, the engine control unit enables the relay that activates the starter motor.

Component assembling position

Starter motor relay


Connection on starter motor relay.

Connection wiring diagram

Connection wiring diagram


Mt starter motor, ccm engine control connection. 4 Starter motor relay activation, blue/black - b/bk, a key on power (+15 from hands free relay 30), r battery power (+30), 3 red/black - r/bk, m black - bk, b black - bk.

In the event of fault

In the event of a starter motor relay fault, the engine will not start.

Fault codes generated and possible correlated faults

The engine control unit generates no fault code in the event of a starter motor relay fault.

No errors are indicated on the dashboard.

Possible correlated faults: the starter motor cannot be operated. Check:

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.

If none of the tests described above identifies the problem and the power supply and ground for the engine control unit are in correct working order, replace the engine control unit.

Component replacement methods

No special measures are necessary in order to replace the starter motor relay.

Throttle valve actuator motor relay
Introduction The throttle valve actuator motor is powered by the engine control unit. The engine control unit receives the necessary power from a specific relay. Component assembling position ...

Radiator fan relay
Introduction The radiator fans are powered via a specific relay, which is enabled by the engine control unit. Component assembling position A injection relay; b etv relay (throttle valve actu ...

Other materials:

Inspection of the gear selector drum
Use a gauge to measure the clearance between fork pin and the slot on the selector drum. If the service limit is exceeded, determine which part must be replaced by comparing these dimensions with those of new components (sect. 3 - 1.1, Gearbox). Also check the wear on the drum support pin ...

Dtc (ducati traction control) setting function
This function allows you to customise the level of dtc intervention (ducati traction control) or disable it for every riding mode. To access the function it is necessary to view the ""setting" menu", using buttons (1) "s" or (2) "t" select the "riding mode" function and press the reset butt ...

Refitting the rear brake control
If the pushrod (18), clip (30) and fork (31) assembly has been dismantled, reassemble it by screwing the nut (29) onto the rod (18) and then screw the rod into the fork (31) to obtain the measurement indicated in the figure. Block the rod and tighten to a torque of 7.5 Nm +/- 10% (sect. 3 - ...

2025 | www.dudiavel.com |