
Subsection 03 (COMMUNICATION TOOLS AND B.U.D.S.)
USB LIGHT
STATUS
WHAT TO DO
Light is
OFF
Check USB connection between
MPI card and PC computer.
Check USB operation on PC computer
(hardware or USB drivers)
Light is
GREEN
Connections are GOOD.
Communication can take place
on USB side
Prerequisite for CAN Communication:
– MPI card connected to diagnostic connector on
vehicle.
– Ignition key installed and turned to ON (electri-
cal system powered up without engine started).
– B.U.D.S. started and logged on.
CAN LIGHT
STATUS
WHAT TO DO
Light is
OFF
Check connection between MPI card
and diagnostic connector on vehicle
Light is
RED
Check CAN wires/connectors on
vehicle
Light is
GREEN
Connections are GOOD.
Communication can take place
on CAN side
Communication Problems when Using
B.U.D.S.
Missing Module
Ensure the appropriate number of modules is
shown at the bottom of B.U.D.S. screen.
MODEL
NUMBER OF MODULES
Models
without
DPS
2
(ECM and multifunction gauge)
Models
with DPS
3
(ECM, DPS and multifunction gauge)
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TYPICAL
1. Number of modules
If one or more “ECU” is not communicating with
the MPI card, refer to
DIAGNOSTIC AND FAULT
CODES
.
No Vehicle is Detected
If an “X” is shown in the status bar and the pro-
tocol indication is blinking between Kw2000 500K
and KW2000, it means that no "ECU" is communi-
cating with the MPI card.
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Check the following:
– Connections between the PC computer and the
vehicle.
– The multifunction gauge is powered up.
If B.U.D.S. does not automatically exit the follow-
ing message box, click the
Retry
button. This will
manually establish the communication with the
vehicle.
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PROCEDURES
MULTI-PURPOSE INTERFACE
CARD (MPI-2 OR MPI-3)
The MPI (Multi-Purpose Interface) in conjunction
with the diagnostic cable is used with B.U.D.S. to
communicate with the ECM (engine control mod-
ule) and other modules.
MPI Card Power
The MPI card uses the power from the PC com-
puter's USB port.
Diagnostic Connector Location
The 6-pin diagnostic connector is located under
the seat, stored in it's protective cap.
2
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