Bold reference numbers in this section identify parts shown in this exploded view diagram. These parts do not appear in the figures near the text.

The “DDS” diagnostic system lets you diagnose any faults in the injection-ignition system via a serial port. This system provides a full range of features to test a number of motorcycle devices, measure the current and voltage outputs from any electrical items, test individual components and take pressure and temperature measurements.

The DDS (1) consists of a palmtop display (A), a BBAD self-diagnosis module (B), a display memory card (C) and a BBAD memory card (D).

The palmtop touch screen display (A) displays data and allows settings to be made via the suitable pen, housed in the hole on the side of the display.

The software for communicating with the DUCATI control units resides in the BBAD memory card (D) located in the BBAD module (B).

A printer can be connected to the DDS (1) via the serial port (COM1) (G) positioned on top of the instrument (1) in order to print test reports.

Supply voltage must be between 9 and 16 Volt DC.

Make sure voltage never drops below this limit during operation: this could happen when starting the engine or when the engine is idling if the bike battery is in less than perfect operating conditions. If the tester detects a power supply voltage below 9 Volts, it will abort any procedures underway at that time. Once voltage is again within specified limits, you will have to repeat procedure set-up.

Both timing belts can be checked and adjusted using the DDS leaving the engine onto the frame. For this purpose, connect an optical reader to the DDS. The green led onto the reader shows correct positioning before the timing belt. The reader also features an infra-red emitter (A) and a receiver (B) to detect timing belt vibrations whilst being duly flicked with a finger.

Read horizontal belt tension on section (22) as described in “Measuring the timing belt tension values”.

Turn the crankshaft by 270° in its direction of rotation (TDC of the vertical cylinder, in the combustion stroke), and repeat the same procedure used for the horizontal cylinder, reading tension on section (23) of the vertical belt.

Switch on the DDS (1), refer to "Instrument power supply".

Aim the middle green led of the sensor (15) at the centre of the belt section by positioning the sensor (15) at the same level of the belt at a distance of 1-1.5 cm.

Press on "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Belt tension" icon and then "Start" to enter the "Belt mechanical tension" page.

Do not flick several times, as the DDS needs at least 1 second to read the value.

Tensioning values are the ones specified in Sect. C 1.1, Timing/valves, and must be checked with engine cold: assembly values must be complied with when installing a new belt, while service values must apply when belt tension reaches 70 Hz.

Timing belt tension could decrease in time as a result of normal wear and tear. When checking belt tension, restore specified service values (Sect. C 1.1, Timing/valves) when reading is below 70 Hz.

If the crankcase has been removed from the frame, turn screw (24) using the suitable tool (27) and position tool pusher (U) on the tensioner.

Once recommended tensioning value is set, tighten the screws (24) and (25) to the specified torque (Sect. C 3, Engine torque settings).

A non-adjustable linear throttle position sensor is fitted onto the throttle body. The control unit should therefore learn sensor zero position as described below.

Switch on the DDS (1), refer to "Instrument power supply".

Connect power and diagnosis cable (2) to DDS diagnosis connector (A) and then connect power and diagnosis cable to the bike's diagnosis socket (B).

Press the "Vehicle selection" icon and press "Vehicle selection" icon in the following page; choose the model and confirm, then select the version and confirm.

Select "Engine electronic system" and press "Confirm" (B) to confirm. Then press "Self-diagnosis" icon to enter self-diagnosis function.

If there are problems in performing the operation, the relevant error messages are displayed: you need to confirm or reject each message by pressing "Confirm" (B) or "Exit" (C), respectively.

The zero setting procedure establishes a connection between electronic control unit and throttle body. For this reason, the zero setting procedure must be repeated each time the throttle body, throttle position sensor or electronic control unit are replaced.

Connect exhaust gases analyzer inserts part No. 88713.1010 to exhaust pipes intakes using connectors (19).

Reset the TPS as indicated in "Zero setting the throttle position sensor (TPS), in this section.

Start the engine and wait for the engine temperature to reach 75 °C (DDS reading). When engine temperature is above 75 °C you can start the following adjustment procedure; always bear in mind that at the end of the adjustment engine temperature should not exceed 90 °C.

If the engine stops before the CO rate is adjusted, wait for a minute after starting so as to complete mixture enrichment phase (Crack time).

1a. both cylinders have an average λ (lambda value) equal to 1 or lower; go to step 2.

1b. one or both cylinders have a lambda value λ higher than 1: open the by-pass screw of the cylinder with a lower λ (lambda) by 1/4 of a turn, allow about 20 seconds for the exhaust gas to reach the analyser and check that the λ (lambda) of both cylinders is on average equal to 1 or lower. If necessary, set it to this value. If the desired value is not reached following this procedure, close by 1/4 of a turn the bypass screw of the cylinder having the higher lambda value. As soon as the correct λ (lambda) is obtained in both cylinders, move on to step 2.

2b. if the average reading is lower than 1250 rpm, loosen both bypass screws (20) and (21) in steps of 1/8 of a turn, until the rotation speed value is within the above limits. Similarly, if the rotation speed is averagely higher than 1350 rpm, close both bypass screws (20) and (21) in steps of 1/8 of a turn, until the rotation speed value is within the above limits.

The idle speed adjustment shall prevail on cylinders vacuum synchronisation; so, different vacuum values between the horizontal and vertical cylinders are acceptable if the idle speed adjustment is correct.

Connect the Measurement Module cable (3) to Measurement Module connector of the DDS as described under "Tester description". Switch on the DDS, refer to "Instrument power supply". Enter "Measurement module" function. Press "Cylinder synchronisation" icon.

This page shows indicator (E) that needs to be activated by pressing “Reset” (G): indicator (E) will be red when function is live. Press icon (G) before starting the test. Connect sensors (4) and (5) to tubes (6) and then start the engine.

Check “cylinders synchronisation” to ensure that the two vacuums inside the manifolds are aligned. Values can be displayed as numbers or as graphs, press "Display mode" (F) to select the display mode. Press "Reset" to reset the values.

To obtain vacuum balance, turn the by-pass screw (20) or (21) until obtaining overlapping lines on the graph, if graphic display was chosen, or the same reading if the numerical display was chosen.

Insert fitting (9) in the hose (12) fitting, and place two copper washers (20) in-between. Screw the connector (9) of the hose (12) into the threaded hole (M10x1mm) in the RH cover. Screw the connector all the way in. Refit the pressure switch (19) complete with seal to the connector (9) and reconnect it to the electric system connector (A).

Switch on the DDS (1), refer to "Instrument power supply".

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Pressure Measurement" icon (D) and then "Start" (E).

Values can be displayed in three ways: as numbers (one mode) or as graphs (two modes); press "Display mode" (F) to select the display mode.

Measured value is indicated next to letter (A) or (C) depending on the cable used: if socket (A) of cable (3) is used, measured value will correspond to letter (A) on the screen.

(Oil temperature at least = 80°C)

1100-1300 rpm

over 0.8 bar

3500-4000 rpm

over 4 bar

Maximum pressure must not exceed 6.0 bar.

A pressure which is too high indicates that the pressure-relief valve is jammed. A pressure which is too low indicates that the pressure-relief valve is jammed in the open position, that the spring is too weak, or that the oil pump is faulty. Other causes of incorrect pressure readings include: badly worn seals and gaskets, badly worn engine.

Remove the gauges and refit the pressure switch (19) with its seal. Tighten it to the specified torque (Sect. C 3, Engine torque settings).

The performance and efficiency of an engine are directly linked to the compression inside the combustion chambers of the two cylinders.

Compression which is too high/low or a large compression difference between the two cylinders will cause a drop in engine performance and can cause engine breakdowns.

To perform this check it is necessary to have available a suitable test equipment, with adapter for the installation in the spark plug seat.

Switch on the DDS (1), refer to "Instrument power supply".

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Cylinder compression" icon (D) and then "Start" (E).

Using fuel pressure tube (17), connect one end (F) to flange and the other end (G) to coupling (E): in this way you create a pressure pick-up point (H).

Switch on the DDS (1), refer to "Instrument power supply".

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Pressure Measurement" icon (L) and then "Start" (M).

Values can be displayed in three ways: as numbers (one mode) or as graphs (two modes); press "Display mode" (N) to select the display mode.

Measured value is indicated next to letter (A) or (C) depending on the cable used: if socket (A) of cable (3) is used, measured value will correspond to letter (A) on the screen.

Maximum pressure must be 3 bar (nominal pressure).

When through with the test, remove the components of the diagnosis instrument and refit the delivery tube (D), secure it with clamp (E).

If the immobilizer is faulty, follow the emergency procedure to start the engine described in Sect. P 7, Immobilizer override procedure that consists in entering the emergency code, also using the DDS.

Switch on the DDS (1), refer to "Instrument power supply".

Connect power and diagnosis cable (2) to DDS diagnosis connector (A) and then connect power and diagnosis cable to the bike's diagnosis socket (B).

Press the "Vehicle selection" icon and press "Vehicle selection" icon in the following page; choose the model and confirm, then select the version and confirm.

Select "Engine electronic system" and press "Confirm" (B) to confirm. Then press "Self-diagnosis" icon to enter self-diagnosis function.

A box is displayed with a field for the five figures of the emergency code. Use the red arrows (E) and (F) to enter each digit: confirm each digit entered pressing "Confirm" (B).

If there are problems in performing the operation, the relevant error messages are displayed: you need to confirm or reject each message by pressing "Confirm" or "Exit" (G), respectively.

The DDS guides the operator step by step through the various diagnosis stages and provides the descriptions and the documents on the different vehicle components such as wiring diagrams for the electronic systems and details on the system layout and parts location.

Switch on the DDS (1), refer to "Instrument power supply".

Connect power and diagnosis cable (2) to DDS diagnosis connector (A) and then connect power and diagnosis cable to the bike's diagnosis socket (B).

Press the "Vehicle selection" icon and press "Vehicle selection" icon in the following page; choose the model and confirm, then select the version and confirm.

You can determine the engine rpm required for generator to produce just enough current to charge battery, feed the injection-ignition system and all electric items fitted to motorcycle. When applied to a cable, the ammeter clamp (18) detects the magnetic field generated by the current passing through that cable.

Remove the left half-fairing (Sect. E 2, Removing the side fairings).

Switch on the DDS (1), refer to "Connection to the bike".

Then, apply the amperemeter clamp to the battery positive terminal lead with the arrow on the clamp pointing towards the battery positive (+) terminal.

Press "Measurement module" icon on DDS (1) to select the "Measurement module" function; then press on "Ammeter" icon (F) and then "Start".

If the measured current is a positive quantity, it means that generator is feeding all electric items and charging battery at the same time. A negative value means that charging system is not feeding the loads and a significant amount of current is supplied by the battery, currently discharging.

Refit the left half-fairing (Sect. E 2, Refitting the side fairings).

If the multifunction display shows an adjustable wrench, it means that the motorcycle needs servicing as set in the Service Schedule.

Switch on the DDS, refer to "Instrument power supply".

Connect the power and diagnosis cable (2) to the diagnosis connector (A), then connect the power and diagnosis cable to the motorcycle diagnosis socket (E).

Press the "Vehicle selection" icon and press "Vehicle selection" icon in the following page; choose the model and confirm, then select the version and confirm.

If there are problems in performing the operation, the relevant error messages are displayed: you need to confirm or reject each message by pressing "Confirm" (C) or "Exit" (D), respectively.

After turning off the Service warning light with the DDS, position the ignition switch to OFF and allow at least 30 seconds before turning the key to ON.