BOMBARDIER ski-doo Tundra Scandic 2004 Series, Shop Manual

Page: 351 / 427

Section 06 ELECTRICAL
Subsection 06 (TESTING PROCEDURE)
06-06-22
MMR2004-134_06_06A.FM
NOTE: Stop switches include the ignition switch and the engine cut-out switch.
It is important to take note that voltage measurements must be taken while starting the vehicle using the
manual starter.
Voltages obtained upon starting are proportional to the force applied onto the manual starter. A low voltage
is therefore normal under a low cranking force.
Perform testing in the prescribed order and replace any parts not performing according to specifications.
It is important to resume all test when replacing a component.
It not specified, the probe connecting sequence is not important.
INSPECTION OF AC CIRCUIT
ISOLATION
All Electric Start Models
If AC circuit is not isolated from frame, headlamp
beam will weaken.
INSPECTION
Disconnect regulator/rectifier.
On models with hydraulic brake, pull off the rubber
boot from brake light microswitch assembly.
Connect one digital ohmmeter probe (needle ohm-
meter will not offer enough precision) to frame and
other probe to one of 2 YELLOW magneto wires.
Measured resistance must be infinite. If such is
not the case, it means there is a connection be-
tween AC circuit and DC circuit.
Disconnect one accessory at the time to identify
the faulty circuit.
INSPECTION OF HEATING
ELEMENTS
All Skandic Models
All measurements must be performed at 21°C
(70°F).
Throttle Lever Heating Element
Current Measurement
Handlebar Grip Heating Element
Resistance Measurement
➀
When measuring resistance at terminals the ac-
tual value will be half the measurement in table.
The reason for that is the elements are connect-
ed in parallel. Therefore the total resistance is
half the resistance of one element.
LIGHTING SYSTEM TESTING (Skandic WT LC/SUV 290 W)
PART
TEST TO BE
PERFORMED
WIRE
COLOR
RESISTANCE
Ω
VOLTAGE V
NOTE
VALUE
(ohms) MULTIMETER
SCALE
VALUE
(volts)
MULTIMETER
SCALE
Lighting
generator
coil
Output YL and YL 00.1 - 00.4 00.0
Ω
0.5 - 2.0
00.0
VAC —
Coil
insulation
YL and
engine
0.L 00.0
M
Ω
— —
The term “engine” refers to the
engine metal parts connected
to the magneto housing.
Ground
continuity
BK and
engine
00.0 - 00.5
00.0
Ω
— —
HIGH
INTENSITY
BROWN wire
0.23 A
minimum
LOW
INTENSITY
BROWN
/
YELLOW wire
0.13 A
minimum
LOW
INTENSITY
YELLOW
/
BLACK wire
ORANGE
/
VIOLET wire
17.7 to
➀
20.7 ohms
HIGH
INTENSITY YELLOW
/
BLACK wire
ORANGE wire
8.73 to
➀
10.67 ohms