Sea-doo Challenger 5896 Shop Manual Download

Page: 171 / 274

Section 08

ELECTRICAL

Sub-Section 05

(THE DESS (DIGITALLY ENCODED SECURITY SYSTEM))

08-05-1

THE DESS (DIGITALLY ENCODED
SECURITY SYSTEM)

SAFETY LANYARD

The basic operation of the DESS safety lanyard is
the same as other types. It must be installed on
the boat’s DESS post to allow engine starting and
you pull it to stop the engine.

After stopping the engine with the start / stop but-
ton while the safety lanyard remains on the DESS
post, it can be restarted as usual within approxi-
mately 10 minutes by pressing again the start /
stop button. After this delay, it may be necessary
to push and turn the safety lanyard on the DESS
post until 2 short beeps are heard to indicate the
system is ready to allow engine starting.

WARNING : While the boat’s engine can
be stopped using the start / stop button,

good driving habits recommend that the safety
lanyard also be disconnected when stopping.

PROGRAMMING OF SAFETY
LANYARD(S)

You must use the MPEM programmer (P / N 295
000 127). Refer to its guide for proper use.

FEATURES OF THE DESS

The DESS comprises the MPEM (Multi-Purpose
Electronic Module) purposely designed for, a
DESS post and a cap that contains both a magnet
and a ROM chip. This system allows an anti-start
protection against unauthorized use of the boat.
The DESS safety lanyard cap specifically contains
an electronic circuit that gives it a unique digital
serial number so no other lanyard can be used (un-
less otherwise programmed). Other type of non
DESS safety lanyard will not work on a DESS sys-
tem.

At least one safety lanyard must be programmed
to operate a boat. At this point, only this lanyard
allows starting the engine on this particular boat
which has been programmed to recognize only
this safety lanyard. This safety lanyard can not be
used on another boat and conversely, the one
from another boat can not be used on your boat
unless otherwise programmed as explained be-
low.

NOTE :

Technically, the boat’s MPEM is the

component that is actually programmed to

recognize a safety lanyard. The MPEM stores the
digital serial number from the safety lanyard cap
in its memory. However, for the sake of clarity, we
will refer to “safety lanyard programming” in the
following technical discussions.

However, the DESS brings a great flexibility. You
can sell additional lanyard(s) and program it(them)
to a boat so that more than one lanyard can be
usable on a particular boat. Up to 8 safety lanyards
can be programmed to a boat. The same lanyard
can not be programmed 2 times on a particular
boat.

All of these lanyards can be programmed to a boat
during the same programming session or thereaf-
ter is desired. The safety lanyards cumulate up to
8 in the MPEM’s memory of the boat. If you add
safety lanyard(s) and reach the 9th lanyard you will
have the choice to keep the previous 8 lanyards or
restart from the 1st and thus erasing all previous
lanyards.

NOTE :

If a customer sells his boat, you can

permanently erase all lanyards that were

programmed for the boat and program a new one
for the new customer (remember at least one lan-
yard MUST be programmed in the boat’s MPEM).
Or, reprogram only the lanyards that the new cus-
tomer wants.

You can program a lanyard to operate other boats
(if equipped with the DESS). The same safety lan-
yard can be programmed to as many boats as de-
sired.

Lanyard(s) programmed for other boats (if
equipped with the DESS) can be used on your
own boat when programmed for. When buying a
new safety lanyard for the DESS from the factory,
it can be used on any boat equipped with the
DESS. At this point, it is only physically inter-
changeable and it will not allow engine starting
unless programmed for. After it has been pro-
grammed to a boat, the lanyard will be the only
one that allows engine starting (unless otherwise
programmed as explained above).

;