Ski-Doo Ski Doo MX Z 2005 [1177/1429] Warning

Ski-Doo Ski Doo MX Z 2005 [1177/1429] Warning
Section 06 ENGINE MANAGEMENT (4-TEC)
Subsection 03 (COMPONENT INSPECTION AND ADJUSTMENT)
WARNING
All electrical actuators (idle bypass valve, in-
jectors, fuel pump, ignition coils and starter
solenoid) are permanently supplied by the
battery when the VCK (Vehicle Communi-
cation Kit) is connected to the diagnostic
connector of the engine wiring harness and
the tether cord cap is installed. Always dis-
connect the battery prior to disconnecting
any electric or electronic parts.
To perform verifications, a good quality multimeter
such as Fluke 111 (P/N 529 035 868) should be
used.
529 035 868
Pay particular attention to ensure that pins are
not out of their connectors or out of shape. The
troubleshooting procedures cover problems not
resulting from one of these causes.
WARNING
Ensure all terminals are properly crimped on
wires and connector housings are properly
fastened.
Before replacing an ECM, always check electrical
connections. Make sure connectors are properly
crimped on wires and fastened in housing, and
that they are free of corrosion. Check if wiring
harness shows any signs of scoring. Ensure
proper electrical connection. Particularly check
ECM ground connections. Ensure that contacts
are good and clean. A «defective module» could
possibly be repaired simply by unplugging and
replugging the ECM. The voltage and current
might be too weak to go through dirty wire pins.
Check carefully if pins show signs of moisture,
corrosion or if they look dull. Clean pins properly
and then coat them prior to assembling with a
silicon-based dielectric grease.
NOTE: Do not apply an other lubricant on the ECM
connectors.
Ensure that all electronic components are genuine
any modification on the wiring harness may
lead to generate fault codes or bad operation.
NOTE: For diagnostics purposes, use Vehicle
Communication Kit (VCK). See DIAGNOSTIC
PROCEDURES subsection.
After a problem has been solved, ensure to clear
thefault(s)intheECMusingtheVCK.Referto
DIAGNOSTIC PROCEDURES subsection.
Resistance Measurement
Whenmeasuringtheresistancewithanohmme-
ter, all values are given for a temperature of 20°C
(68°F). The resistance value of a resistance varies
with the temperature. The resistance value for
usual resistor or windings (such as injectors) in-
creases as the temperature increases. However,
our temperature sensors are NTC types (Negative
Temperature Coefficient) and work the opposite
which means that the resistance value decreases
as the temperature increases. Take it into account
when measuring at temperatures different from
20°C(68°F). Use this table for resistance variation
relative to temperature for temperature sensors.
TEMPERATURE SENSOR TABLE
TEMPERATURE RESISTANCE (ohms)
°C °F ATS CTS
-40 -40
45000
-30 -22 28000 28000
-20
-4
14500 15000
0 32 5500 5750
20 68 2500 2600
40 104 1200 1200
60 140 600 600
80 176 320 320
100 212 180 180
130 266 90 90
CONVERSION CHART FOR TEMPERATURE SENSORS
mmr2005-032 313

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