Section 07
ENGINE MANAGEMENT (4-TEC)
Subsection 02
(OVERVIEW)
07-02-6
SMR2002-077_07-02A.FM
The EMS ECU gets its power by the MPEM which
is directly powered by the battery. It is responsible
for the following engine management/electrical
functions:
– interpreting information
– distributing information
– start/stop function
– timer
– DESS (Digitally Encoded Security System)
– ignition timing control
– injection control
– The EMS ECU applies the proper map (injection
and ignition) for optimum engine operation in all
conditions.
– engine RPM limiter
– etc.
The EMS ECU features a permanent memory that
will keep the programmed safety lanyard(s) active,
fault codes and other engine information, even
when the battery is removed from the watercraft.
EMS — GENERAL FUNCTIONS
Safety Lanyard Reminder
If engine is not started within 5 seconds after in-
stalling the safety lanyard on its post, 2 very short
beeps every 3 second interval will sound for ap-
proximately 4 hours to remind you to start the en-
gine or to remove safety lanyard. Afterwards, the
beeps will stop. The same will occur when safety
lanyard is left on its post 5 seconds after engine is
stopped.
CAUTION:
Leaving the safety lanyard on its
post when engine is not running will slowly dis-
charge battery.
Antistart Feature
This system allows starting the vehicle only with
safety lanyard(s) that has been programmed to op-
erate a specific watercraft. This functionality is the
DESS system. See below for details.
Digitally Encoded Security System
(DESS)
The following components are specially designed
for this system: Multi-Purpose Electronic Module
(MPEM), EMS ECU, safety lanyard cap and safety
lanyard post.
The safety lanyard cap contains a magnet and a
ROM chip. The magnet actually closes the reed
switch inside the post which is the equivalent of a
mechanical ON/OFF switch. The chip has a unique
digital code.
The DESS circuitry in the EMS ECU is activated at
the factory. Therefore, a safety lanyard must be
programmed to start the engine.
NOTE:
Actually, it is the memory of the EMS ECU
which is programmed to recognize the digital code
of the safety lanyard cap. This is achieved with the
VCK (Vehicle Communication Kit) P/N 529 035
844. Refer to B.U.D.S. help system to program 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.
R1503motr219A
www.SeaDooManuals.net
Содержание GTX 4-TEC 5573 2002
Страница 1: ...www SeaDooManuals net ...
Страница 2: ...2002 Shop Manual Volume 2 GTX DI GTX 4 TEC www SeaDooManuals net ...
Страница 501: ...GTX DI MODEL www SeaDooManuals net ...
Страница 502: ...F18Z0P MODEL GTX DI 2002 12 VOLTS DISTRIBUTION www SeaDooManuals net ...
Страница 503: ...GTX 4 TEC MODEL www SeaDooManuals net ...
Страница 505: ...www SeaDooManuals net ...