DB Dashboard connection, L high beam lights connection, T high beam relay, S high beam light switch, R positive battery termi­nal. 6 blue – B, 1 red/blue – R/B, 85 yellow/grey – Y/Gr, 30 orange – O, 86 black – Bk, 87 yellow/black – Y/Bk, 2 black – Bk.

Check integrity of incandescent high beam headlamp bulbs. If necessary, power the bulbs with a 12 V external power supply to test function (connect correctly as indicated in the wiring diagram).

Test function of high beam relay, powering its electric winding (internal coil) with 12V. In this state, PIN 30 and PIN 87 should close (continuity between PINs). With no power, the PINs must be open (no continuity between PINs).

Check that when the high beam switch is turned to the high beams on position, there is continuity across its two electric termi­nals (PIN 6 and PIN 1).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DB Dashboard connection, T low beam relay, L low beam connection, R positive battery terminal. 85 yellow/white – Y/W, 30 orange – O, 86 black – Bk, 87 white – W, 2 black – Bk.

Check integrity of incandescent low beam headlamp bulbs. If necessary, power the bulbs with a 12 V external power supply to test function (connect correctly as indicated in the wiring diagram).

Test function of low beam relay, powering its electric winding (internal coil) with 12V. In this state, PIN 30 and PIN 87 should close (continuity between PINs). With no power, the PINs must be open (no continuity between PINs).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DB Dashboard connection, S horn button. 5 blue/white – B/W, 1 red/blue – R/B, DB 19 purple/black – V/Bk.

If the indicated fault code has been generated by the DDS, check that the electric connection between the dashboard and the horn is not short circuited to ground.

Test horn button function. When the button is pressed, there must be continuity between its two electric terminals (PIN 5 and PIN 1).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DB Dashboard connection, BBS unit connection, S turn indicator button, F1 front left turn indicator, F2 front right turn indicator, F3 rear left turn indicator, F4 rear right turn indicator. 2 on grey button – Gr, 1 on red/blue button – R/B, 4 on black button – Bk, DB 26 white/black W/Bk, DB 25 green/black – G/Bk, BBS 16 white/green – W/G, BBS 17 white/black W/Bk.

Check integrity of incandescent bulbs in rear turn indicators. If necessary, power the bulbs with a 12 V external power supply to test function (connect correctly as indicated in the wiring diagram). The front turn indicators use LED light units, which are pow­ered with square wave PWM power and CANNOT be tested with an external power supply.

Test turn indicator button function. Pushing the button in one direction closes the circuit between dashboard PIN 17 and PIN 10 (button PIN 2 and PIN 1), pushing in the opposite direction connects dashboard PIN 10 to ground (button PIN 2)

If none of the aforementioned tests identify the problem, but the turn indicator button does not receive power correctly from dashboard PIN 17, replace the dashboard.

If none of the aforementioned tests identifies the problem and either one or both of the front turn indicators are not working, replace the malfunctioning turn indicator. If the fault persists after replacement, replace the dashboard.

If none of the aforementioned tests identifies the problem and either one or both of the rear turn indicators are not working, re­place the BBS unit.

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DB Dashboard connection, S high beam flash button. 7 orange – O, 1 red/blue – R/B.

Test high beam flash button function. When the button is pressed, there must be continuity between its two electric terminals (PIN 1 and PIN 7).

Check the correct operation of the high beam headlamps (see paragraph “High beam lights not working”) of this Section.

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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)

DB Dashboard connection, L license plate light. DB 18 yellow – Y, 3 black – Bk.

The license plate light receives square wave PWM power from the dashboard. Check the integrity of the incandescent bulb in the number plate light. If necessary, power the number plate light with a 12 V external power supply to test function (connect correctly as indicated in the wiring diagram).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

BBS BBS unit connection, LA front running light, LP rear running light. BBS 7 yellow – Y, 2 black – Bk, rear running light-stop light ground, black – Bk.

The front and rear parking lights use LED light units and receive a 12 V power supply. Power the parking lights with an external 12 V power supply to test function (connect correctly as indicated in the wiring diagram).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DB Dashboard connection. The buttons on the left hand handlebar perform the functions Set Up and Set Down in the dashboard menu. 8 blue/yellow – B/Y, 4 black – Bk, 1 red/blue – R/ B.

Test menu scroll button function. Pushing the button in one direction closes the circuit between dashboard PIN 17 and PIN 3 (button PIN 8 and PIN 1), pushing in the opposite direction connects dashboard PIN 3 to ground (button PIN 8 closed on button PIN 4 linked to the ground).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DB Dashboard connection, S turn indicator reset-dashboard menu access button. 3 brown – Br, 1 red/blue – R/B.

Test turn indicator reset button function. When the button is pressed, there must be continuity between its two electric terminals (PIN 3 and PIN 1).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DDS: Fuel sensor diagnosis -> Short circuit to Vdc or open circuit (S.C. Vdc or C.O.) – Short circuit to ground (S.C. GND) – Con­gruence (Generic error – signal not correct).

BBS BBS unit connection, S fuel level sensor. 1 blue/black – B/Bk, 2 white/blue – W/B.

Test fuel level sensor function. The sensor resistance when the tank is completely empty must be 150 Ohm, whereas the sensor resistance with a completely full tank must be 22770 Ohm. Measure the resistance between PIN 1 and PIN 2 of the sensor, with the connection disconnected.

If none of the aforementioned tests identify the problem, replace the fuel level sensor. If the fault has not been resolved, replace the BBS unit.

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DDS: Gear sensor diagnosis -> Short circuit to ground or open circuit (S.C. GND or C.O.) – Short circuit to Vdc (S.C. Vdc) – Con­gruence (Generic error – signal not correct).

It is possible that the gear engaged or neutral engaged information is not being generated because the gear position self-acqui­sition procedure has not been performed (gear sensor not initialised).

BBS BBS unit connection, S gear position sensor. BBS 15 brown/red – Br/R (5V), BBS 13 yellow/green Y/G, BBS 10 black/blue – Bk/B.

The gear sensor is a Hall effect unit. Ground is on PIN 10 of the BBS unit, 5 V power is on PIN 15 of the BBS unit, PIN 13 of the BBS is the input for the signal generated by the sensor. Check that the sensor receives 5 V power.

If none of the aforementioned tests identify the problem, replace the gear sensor then perform the gear self-acquisition proce­dure. If the fault has not been resolved, replace the BBS unit.

the system is capable of compensating for normal mechanical wear of the sensor probe. Certain faults may be due to excessive mechanical wear between the sensor and gear selector drum.

The engine control unit uses the neutral engaged signal generated by the gear sensor, together with the clutch lever pulled signal, to manage idle speed.

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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 gear self-acquisition procedure must be launched from the DDS instrument. This ensures that the data stored previously is deleted and enables the BBS to run a new gear acquisition procedure. With the engine running and the motorcycle in motion:

DDS: Speed sensor diagnosis -> Max. speed (Max. speed error – signal not correct) – Minimum speed (Min speed error – signal not correct) – Congruence (Correlation speed error – signal not correct).

BBS BBS unit connection, DB Dashboard connection, ABS ABS connection. BBS 14 green/purple – G/V, DB 9 blue – B.

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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 front wheel speed sensor signal is replicated by the ABS unit and transmitted to the dashboard, whereas the rear wheel speed sensor signal is replicated by the ABS unit and transmitted to the BBS unit.

The replicated front wheel speed sensor signal (1 in diagram) is transmitted by the dashboard over the CAN line and acquired by the BBS unit. The BBS now has both the replicated front wheel speed sensor signal and the replicated rear wheel speed sensor signal.

Using the replicated rear wheel speed signal and the circumference of the wheel itself, the BBS unit calculates the vehicle speed (2 in diagram). This parameter is used by the Ducati Traction Control (DTC) function together with the front wheel speed and the circumference of the front wheel itself, in order to implement engine torque limiting strategies when required.

The vehicle speed calculated by the BBS is transmitted over the CAN line (3 in diagram) and acquired by the dashboard, which displays the speed information accordingly.

On motorcycles with no ABS unit, the front wheel speed sensor is connected directly to dashboard and the rear wheel speed sensor is connected directly to the BBS.

BBS unit connection BBS, ABS unit connection ABS. BBS 2 light blue – Lb.

The ABS fault indicator indicates the occurrence of one or more faults in the antilock brake system, or if the system itself has been disabled by the rider, using the relative control. The signal causing activation of the ABS fault indicator in the event of an antilock brake system malfunction, comes directly from the ABS control unit, and the information is transmitted over the CAN line by the BBS unit, so that it may be acquired by the dashboard, where the indicator itself is located.

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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 ABS fault indicator indicates the occurrence of one or more faults in the antilock brake system, or if the system itself has been disabled by the rider, using the relative control. The signal causing activation of the ABS fault indicator when the antilock brake system is disabled, comes directly from the ABS unit, and the information is transmitted over the CAN line by the BBS unit, so that it may be acquired by the dashboard, where the indicator itself is located.

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DB Dashboard connection, BBS BBS unit connection, A front brake button, P rear brake button, L stop light. A KEY ON power (+15 from Hands free relay 30), DB 4 grey/red – Gr/R, the switch cable connected to A via the fuse is black – Bk, BBS 6 grey/red – Gr/R, ground on stop light, black – Bk.

Rear brake button mounted near lever operating brake pump. The button is normally closed (when the brake lever does not press on the button because it has been pressed by enough to cause a braking effect, the contacts close, short circuiting the contacts).

The stop light contains a LED light unit and receives 12 V power. Power the light with an external 12 V power source to test function (connect correctly as indicated in the wiring diagram).

Check that there is continuity between the two PINs of each button (front and rear brake buttons) when the respective lever is operated.

Check that there is a voltage of 12V on the black wire of each of the two buttons in KEY-ON state (dashboard on). If not, consult the paragraph “Hands Free”.

Operating the two brakes in alternation, check that there is a voltage of 12 V on PIN 6 of the BBS (grey/red wire on rear parking light and stop light connection).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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.

DDS: EXVL diagnosis -> Position error, Potentiometer, Short circuit to ground or open circuit (S.C. GND or C.O.), Potentiometer short circuited to Vdc (Potentiometer S.C Vdc).

M exhaust bypass valve motor with potentiometer S for position detection, BBS BBS unit connection. 10 BBS black/blue – Bk/B, 15 BBS brown/red – Bn/R, 4 BBS yellow/blue – Y/B, 18 BBS black/orange – Bk/O, 19 BBS black/white – Bk/W.

The image shows the exhaust system. The oxygen sensor for the horizontal cylinder (1) is visible on the right, the oxygen sensor for the vertical cylinder (2) is on the left. The catalytic converter is contained within the silencer, while the By-pass valve is installed in the section of pipe connecting the silencer to the twin tailpipes. A metal cable, controlled by an actuator with electric motor and a position sensor, branches off from the exhaust bypass valve.

Check that the exhaust bypass valve can move freely within its housing (valve not jammed). The valve may be actuated using the DDS.

Check that the connection between the exhaust By-pass valve and the electric actuator is in working order and adjusted correctly (see paragraph relative to installing and adjusting the exhaust butterfly valve).

Check that there is a voltage of 5V on the black/blue and brown/red wires on the exhaust By-pass valve connection (BBS PIN 10 = ground, BBS PIN 15 = 5 V).

Check integrity of electric circuit – short-circuit to Vdc = with instrument panel 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)

At each KEY ON, the exhaust By-pass valve motor resets to compensate for any cable expansion and registers the start and end of travel.