Section 07 ELECTRICAL SYSTEM
Subsection 05 (DIGITALLY ENCODED SECURITY SYSTEM (DESS))
DIGITALLY ENCODED SECURITY
SYSTEM (DESS)
SERVICE TOOLS
Description Part Number Page
DESS adapter .......................................................................
529 035 684 .........................................215
MPEM programmer..............................................................
529 035 878 .........................................215
Vehicle Communication Kit (VCK).........................................
529 035 981 .........................................215
GENERAL
The Digitally Encoded Security System (DESS) features an anti-start protection against unauthorized use
of the watercraft.
The following components are specially designed for this system:
– Multi-Purpose Electronic Module (MPEM) on 717 engines equipped models
– Engine Control Module (ECM) on 787 RFI engines equipped models
– safety lanyard cap
– safety lanyard switch.
The safety lanyard cap has a magnet and a ROM chip. The chip has a unique digital code.
The DESS circuitry in the watercraft MPEM/ECM is activated at the factory. Therefore, a safety lanyard
must be programmed to start the engine.
NOTE: Actually,itisthememoryoftheMPEM/ECMwhichisprogrammedtorecognizethedigitalcode
of the safety lanyard cap.
The system is quite flexible. Up to eight safety lanyards may be programmed in the memory of the
watercraft MPEM/ECM. They can also be erased.
NOTE: If desired, a safety lanyard can be used on other watercraft equipped with the DESS.
The memory of the MPEM/ECM is permanent. If the battery is disconnected, no information is lost.
When ordering a new MPEM/ECM from the regular parts channel, the DESS circuitry will be activated.
The MPEM/ECM features a self-diagnostic mode. Refer to the chart following.
smr2005-072 213
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