Section 07 ELECTRICAL SYSTEM
Subsection 04 (INSTRUMENTS AND ACCESSORIES)
– ignition system
– Digitally Encoded Security System
– monitoring system
– diagnostic mode.
Power Distribution
A power supply cut-off relay supplies the MPEM
from the battery.
The MPEM distributes power from the cut-off re-
lay to all accessories.
Accessories are protected by fuses integrated in
the MPEM, in fuse holder(s) close to MPEM or
in the electrical box. Fuses are identified besides
their holder. See below for fuses location and de-
scription.
Gauge Current Supply
When the safety lanyard is installed, it activates
the reading of gauges without the engine running.
It will give access to most functions of the infor-
mation center gauge without starting the engine.
Safety Lanyard Reminder
If engine is not started within 5 seconds after
installing the safety lanyard on its post, 4 short
beeps every 3 second interval will sound for ap-
proximately 2 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.
Always ensure safety lanyard is not left on its post
after engine is stopped.
IMPORTANT:
Leaving the safety lanyard on its
post when engine is not running will slowly dis-
charge the battery.
Ignition System
The MPEM controls the ignition timing.
Engine RPM Limiter
The MPEM will limit the maximum engine speed.
Digitally Encoded Security
System (DESS)
When connecting a safety lanyard cap on the
switch, the DESS system inside the MPEM is
activated and will emit audible signals:
– 2 short beeps indicate a right safety lanyard is
being used and gauges are supplied with cur-
rent for 33 seconds. The MPEM will thus allow
the engine to start.
– 1 long beep indicates a wrong safety lanyard
is being used or that the anti-start feature is
defective. Current to gauges is cut after the
audible signal is emitted and the engine cannot
be started.
A wrong safety lanyard is a safety lanyard which is
defective or not programmed in the MPEM mem-
ory.
To better understand the anti-start feature, refer
to DESS (DIGITALLY ENCODED SECURITY SYS-
TEM) section.
If the MPEM responds differently than specified,
refer to the TROUBLESHOOTING section.
Engine Starting
If the MPEM recognizes a valid safety lanyard, it
allows engine to start when the start/stop switch
is pressed.
If start/stop button is held after engine has started,
the MPEM automatically stops the starter when
the engine speed reaches 1000 RPM.
Monitoring System
Low-Fuel 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 to the Information
Center gauge.
When the oil level is low in the reservoir, the
MPEM sends out a signal to the Information
Center gauge and the pilot lamp on the gauge will
turn on.
Overheat Sensor
When the engine temperature reaches a threshold
value, the MPEM triggers a continuous beep to
indicate overheating.
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