Ski-Doo Ski Doo SUMMIT 2005 [252/1429] Engine rpm limiter

Ski-Doo Ski Doo MX Z 2005 [252/1429] Engine rpm limiter
Section 06 ENGINE MANAGEMENT (SDI)
Subsection 01 (OVERVIEW)
Gauges Current Supply
Gauges are supplied with current for 30 sec-
onds when connecting the tether cord cap on its
postand momentarily pressing the START/RER
switch.
NOTE: On electric start models, setting engine
cut-out switch to OFF will prevent engine starting.
NOTE: Each time the tether cord cap is connected
to the post and START/RER switch is depressed,
the fuel pump is activated for 2 seconds to build
up pressure in the fuel injection system.
Engine Starting
If the ECM recognizes a valid tether cord cap, it
allows engine to rev above 3000 RPM.
Engine RPM Limiter
The ECM will limit the maximum engine speed.
Low-Oil Level Warning Device
When the oil falls under a certain level, the low oil
level LED will be illuminated. The beeper will also
be activated intermittently.
High Coolant Temperature
Warning Device
When the coolant temperature is getting too high,
the ECM sends out signals to the beeper and the
high temperature LED.
Power Distribution
Accessories are protected by fuses located in the
fuse holder. Fuses are identified besides their
holder.
IMPORTANT: Engine-related sensors and injec-
tors are continuously powered from the battery.
The ECM switches the ground to complete
the electrical circuits it controls. Take this into
account when troubleshooting the electrical sys-
tem.
Manual Start Models
The system uses 3 relays: an ignition/injectors,
electric fuel pump and starting system relay (R1),
a second for the lighting system and the acces-
sories (R2) and a third for the capacitor circuit (R4).
Electric Start Models
The system uses 2 relays: an ignition/injectors,
fuel pump and starting system relay (R1) and a
headlights and accessories relay (R2).
236 mmr2005-079

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