Sea-doo RX Shop Manual page 123

NOTE: Actually, it is the memory of the MPEM
which is programmed to recognize the digital code
of the safety lanyard cap. This is achieved with the
MPEM programmer (P/N 529 034 500) or the VCK
(Vehicle Communication Kit) P/N 529 035 676. Re-
fer to their operation manual or help system to pro-
gram a safety lanyard.
The system is quite flexible. Up to 8 safety lan-
yards may be programmed in the memory of the
watercraft MPEM. They can also be erased indi-
vidually.
The MPEM also offers a special safety lanyard —
the Sea-Doo LK™ (learning key) — which can be
programmed so that the vehicle can be run only at
a limited speed — approximately 48 km/h (30 MPH).
Such feature is ideal for first time riders or renters.
WARNING
When programming a Sea-Doo LK™ (learn-
ing key), use only a lanyard that is identified
for that purpose. Otherwise, a customer
could use a vehicle with a greater speed than
he was expecting.
NOTE: If desired, a safety lanyard can be used on
other watercraft equipped with the DESS. It only
needs to be programmed for that watercraft.
When connecting a safety lanyard cap on the post,
the DESS is activated and will emit audible signals:
– 2 short beeps indicate a working safety lanyard.
Engine starting can take place.
– 1 long beep indicates a wrong safety lanyard is
being used or that something is defective. En-
gine starting is not allowed.
The memory of the MPEM features two self-
diagnostic modes for the DESS operation. Refer
to DIAGNOSTIC PROCEDURES section for more
information.
The memory of the MPEM is permanent. If the
battery is disconnected, no information is lost.
When ordering a new MPEM from the regular
parts channel, the DESS circuitry will be activated.
Gauges Current Supply
The purpose of this function is to allow reading of
gauges without the engine running. It will give ac-
cess to most functions of the information center
gauge without starting the engine.
SMR2000-050-05-02A.FM
Section 05 ENGINE MANAGEMENT (DI)
Gauges are supplied with current for 33 seconds
when connecting the safety lanyard cap on its post
or when pressing the start/stop switch without
the safety lanyard on the DESS post.
NOTE: The fuel pump will be activated for 2 sec-
onds to build up pressure in the fuel injection sys-
tem, only when connecting the safety lanyard cap
to the post.
Engine Starting
If the MPEM recognizes a valid safety lanyard, it
allows engine to start when the start/stop switch
is pressed.
If the safety lanyard is left on the DESS post for
more than 10 minutes after stopping the engine,
the MPEM may send out 1 long beep when press-
ing the start/stop switch. The current supply to
gauges will be stopped as explained in the Anti-
start Feature section. A light pressure on the safe-
ty lanyard or removing and reinstalling the safety
lanyard is required to allow the MPEM to read and
validate the safety lanyard, the engine can then be
started.
If start/stop button is held after engine has started,
the MPEM automatically stops the starter when
the engine speed reaches 1000 RPM.
If start button is activated while the throttle lever
is depressed more than 70%, the engine will not
be allowed to start.
Engine RPM Limiter
The MPEM will limit the maximum engine speed.
Engine Stopping
There are 2 ways to stop the engine.
Press and hold start/stop switch or remove the
safety lanyard cap from its post.
If the engine is stopped by removing the safety lan-
yard, it is possible to restart the engine as explained
in the engine starting section.
If safety lanyard cap is reconnected within 6 sec-
onds, the current supply to gauges is cut for a brief
moment and comes back on with the audible sig-
nal of safety lanyard validation.
Low-Fuel and Low-Oil Level Warning Device
When the fuel level in the reservoir is low, the fuel
level sensor transmits a signal to the MPEM. The
MPEM sends out signals for the beeper and to the
information center gauge.
www.SeaDooManuals.net
Subsection 02 (OVERVIEW)
05-02-5