Brakelight Switch (Pressure); Oil Temperature And Cooling Fan Switches - Arctic Cat 366 ATV 2008 Service Manual

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Brakelight Switch
(Pressure)
The brakelight switch is located on the top of the aux-
iliary brake master cylinder and is pressure activated
by the hand brake or the auxiliary brake pedal. This
switch also activates the start-in-gear (SIG) relay in
the power distribution module (PDM).
NOTE: The ignition switch must be in the ON
position.
VOLTAGE
(Wiring Harness Side)
1. Set the meter selector to the DC Voltage position.
2. Connect the red tester to the brown/black wire;
then connect the black tester lead to ground.
3. The meter must show battery voltage.
NOTE: If the meter shows no battery voltage,
troubleshoot the battery, fuse, switch, or the main
wiring harness.
NOTE: If the meter shows battery voltage, the
main wiring harness is good; proceed to test the
switch/component or connector.
RESISTANCE (Switch)
! CAUTION
Always disconnect the battery when performing
resistance tests to avoid damaging the multimeter.
1. Remove the spade connectors from the brake
switch.
2. Set the meter selector to the OHMS position.
3. Connect the red tester lead to one switch terminal;
then connect the black tester lead to the other
switch terminal.
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4. When the brake pedal is depressed, the meter must
show less than 1 ohm.
NOTE: If the meter shows more than 1 ohm of
resistance, replace the switch.
Oil Temperature and
Cooling Fan Switches
1. Connect the meter leads (selector in the OHMS
position) to the switch contacts.
2. Suspend the switch and a thermometer in a con-
tainer of cooking oil; then heat the oil.
NOTE: Neither the switch nor the thermometer
should be allowed to touch the bottom of the con-
tainer or inaccurate readings will occur. Use wire
holders to suspend switch and thermometer.
! WARNING
Wear insulated gloves and safety glasses. Heated oil
can cause severe burns.
3. On the oil temperature switch when the oil temper-
ature reaches 160° C (320° F), the meter should
read a closed circuit.
4. On the oil temperature switch, allow the oil to
cool, and when the temperature is at (or just
before) a temperature of 140° C (284° F), the
meter should read an open circuit.
5. On the cooling fan switch when the temperature
reaches 120° C (248° F), the meter should read a
closed circuit.
6. On the cooling fan switch, allow the oil to cool,
and when the temperature is at (or just before) a
temperature of 110° C (230° F), the meter should
read an open circuit.
7. If the readings are not as indicated, the switch
must be replaced.
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