Ducati Diavel
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Ducati Diavel Service Manual: 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

Throttle valve actuator motor relay


A injection relay; b etv relay (throttle valve actuator motor), c radiator fan relay, d engine control unit.

Connection wiring diagram

Connection wiring diagram


Ccm engine control connection, t throttle valve actuator motor relay. 85 Throttle valve actuator motor relay activation, light blue/green - lb/g, 87 ecu power input for throttle valve actuator motor, red/brown r/bn, 30 and 86 red/purple - r/v, r battery positive (+30).

In the event of fault

In the event of a throttle valve actuator relay fault, the ecu cuts motor power and the throttle valves close (see chapter operating principle and characteristics of the ride-by-wire system in this section).

Fault codes generated and possible correlated faults

Fault codes generated by the engine control unit and displayed by the dds (etv relay diagnosis):

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 dashboard service display shows the error "etv relay" (throttle valve actuator motor relay) and the eobd warning light activates.

Possible correlated faults: the engine does not start, cuts out or remains running at idle speed and will not accelerate.

Check:

The throttle valve actuator motor may be actuated into one of the three preset positions (0%, 50%, 100%) using the dds. During motor actuation, the throttle valve actuator motor relay is driven.

If none of the tests described above identify the problem and the throttle valve actuator relay is in proper working order, contact ducati.

Component replacement methods

No special measures are necessary in order to replace the throttle valve actuator motor relay.

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Other materials:

Removing the silencer
Loosen the clamp (38) that retains the silencer (4) to the complete exhaust system. While holding the nut (8), loosen the screw (1) and remove the silencer (4) from the motorcycle. Loosen the screws (40) and remove the silencer guard (41). ...

Reassembly of the clutch-side crankcase cover
Fit the plug (14) and the gasket (13). Fit the plug (17) and the gasket (15). If the bush has been replaced, fully seat the new bush (7) in the slot in the cover using a suitable drift and a press. If the sealing ring (8) needs to be renewed, fit the new seal into the crankcase cover, po ...

High engine coolant temperature
The activation of this (amber yellow) "warning" indicates that the engine coolant temperature is high. It is activated when the temperature reaches 121C (250f). Note In this case, ducati recommends stopping and shutting off the engine immediately; make sure that the fans are workin ...

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