Ski-Doo Ski Doo GSX 2005 [1136/1429] Resistance measurement

Ski-Doo Ski Doo MX Z 2005 [1136/1429] Resistance measurement
Section 05 ENGINE MANAGEMENT (2-TEC)
Subsection 03 (COMPONENT INSPECTION AND ADJUSTMENT)
WARNING
All electrical actuators (injectors, fuel pump,
ignition coils and starter solenoid) may be
suddenly supplied by the battery when the
tether cord cap is installed and the start
button is depressed or if engine is rotated
(manually or with the rewind starter). Even
a small movement of the crankshaft or the
usage of the supply cable (P/N 529 035 869)
will automatically activate the actuators. Al-
ways disconnect the tether cord cap and the
battery prior to disconnecting any electric or
electronic parts.
529 035 869
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.
CAUTION: Ensure all terminals are properly
crimped on wires and connector housings are
properly fastened.
Before replacing a ECM, always check electrical
connections. Make sure that they are very tight
and they make good contact and that they are cor-
rosion-free. Check if wiring harness shows any
signs of scoring. 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
with a silicon-based dielectric grease or equiva-
lent.
NOTE: Do not apply dielectric grease or other lu-
bricant on the ECM connectors.
If the newly replaced ECM works, try the old one
and recheck if it works.
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,
some of 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 dif-
ferent from 20°C(68°F). Use this table for resis-
tance variation relative to temperature for temper-
ature sensors.
mmr2005-029 271

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