Can-Am DS 450 2008, Shop Manual

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Section 06 ELECTRICAL SYSTEM
Subsection 04 (LIGHTS)
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1. Taillight/brake light connector
2. Rear frame extension
Remove seat, refer to the
BODY
section.
Set the Fluke 115 multimeter (P/N 529 035 868)
to Vdc and measure battery voltage.
Set engine stop switch to “RUN”.
NOTE: Do not start the engine.
Set ignition switch to “ON”.
Measure the taillight/brake light input voltage be-
tween the RED/VIOLET wire (pin 2) rear main har-
ness side of connector, and chassis ground.
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TAILLIGHT INPUT VOLTAGE TEST (PIN 2)
Measured voltage should be significantly be-
low battery voltage (eg. if battery voltage was
12.8 Vdc, measured voltage at light connector will
be approximately 7 Vdc). This is normal.
Start engine.

WARNING
Before starting engine, ensure parking brake
is set and transmission is selected to neutral
“N”. Failure to comply with this procedure
may result in severe injury and possible loss
of life.
Measure charging system voltage at battery ter-
minals, refer to
CHARGING SYSTEM
section.
Again measure taillight/brake light input voltage.
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TAILLIGHT INPUT VOLTAGE TEST (PIN 2)
If the taillight/brake light input voltage is close to
charging voltage, the headlights power regulator
is functioning normally.
If you do not measure any voltage, carry out the
following:
Remove the front body assembly (refer to
BODY
section).
Locate the headlight power regulator on the LH
side of the frame just above the cylinder head.
Disconnect the headlight power regulator con-
nector.
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1. Headlight power regulator
2. Headlight power regulator connector
3. ECM
Set the multimeter to Vdc.
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