The "dds" diagnostic system lets you diagnose any faults in the injection-ignition system via a serial port. The system is also equipped with functions to test various devices on the motorcycle. The dds diagnosis instrument can be used to measure current and voltage on any electrical device, to perform tests on individual components and to measure pressure and temperature values.
The dds (1) part number 97900.0215 Consists of a palmtop display (a), a bbad self-diagnosis module (b) and a display memory card (c).



The touch-screen display unit (a) serves for both data display and input, using the stylus housed on the side of the unit.
The self-diagnosis module (b) enables communication between the dds diagnosis instrument (1) and the motorcycle’s on-board electronic control unit (ecu).
The user interface software resides in the display memory card (c) which is housed in the palmtop display unit (a).
The display unit is equipped with two connection panels: one at the top of the instrument and one at the bottom.
The top connection panel has 6 connection sockets with the following functions:

The bottom connection panel has 3 connection sockets with the following functions:

You can connect a printer to the dds diagnosis instrument (1) to print test reports: connect the printer to the serial port (com1) (g) located on the top connection panel of the tester (1).
Technical data
Power supply:
Components supplied with the dds diagnosis instrument
The dds diagnosis instrument (1) is supplied in a kit together with the following items:
Using a multimeter to check the electrical systems
Tester power supplyRemoval of the engine
In order to remove engine you must first remove a series of other components
from the motorcycle.
Most of these removal procedures are described in the relative sections of this
manual.
The following flow chart illustrates the logical sequence in which the parts are
to be removed from th ...
Exhaust by-pass valve not working correctly
Fault codes
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).
Dashboard: the error "exvl" (exhaust bypass valve) is shown on the service
display. The eobd warning ...
Removal of the intake manifold and coolant union
Loosen the clips (f) and remove the hoses (t).
Remove the manifolds (25) undoing the screws (21).
Loosen the clamp (a) and remove the hose (b). Remove the union (12) and
recover the seal (24).
...