Fan Motor - Arctic Cat 2014 450 Service Manual

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, trou-
bleshoot 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)
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.
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 resis-
tance, replace the switch.
Engine Coolant
Temperature (ECT)
Sensor
 NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the
LCD gauge (see EFI Diagnostic System in this sec-
tion).
1. Connect the meter leads (selector in OHMS position)
to the sensor terminals.
2. Suspend the sensor and a thermometer in a container
of cooking oil; then heat the oil.
 NOTE: Neither the sensor nor the thermometer
should be allowed to touch the bottom of the con-
tainer or inaccurate readings will occur. Use wire
holders to suspend the sensor and thermometer.
Wear insulated gloves and safety glasses. Heated oil
can cause severe burns.
3. On the ECT sensor when the temperature reaches
20° C (68° F), the meter should read approximately
2.45k ohms.
4. On the ECT sensor when the temperature reaches
50° C (122° F), the meter should read approximately
800 ohms.
5. On the ECT sensor when the temperature reaches
80° C (176° F), the meter should read approximately
318 ohms.
6. On the ECT sensor when the temperature reaches
110° C (230° F), the meter should read approxi-
mately 142 ohms.
7. If the readings are not as indicated, the sensor must
be replaced.
8. Install the sensor and tighten securely.
9. Connect the leads.
KC274
 NOTE: Preliminary checks may be performed on
this component using the diagnostic mode on the
LCD gauge (see EFI Diagnostic System in this sec-
tion).
The connector is the black two-prong one located behind
the fan assembly along the right-side frame tube.
 NOTE: The ignition switch must be in the ON posi-
tion.
VOLTAGE (Main Harness Connector
to Fan Motor)
1. Set the meter selector to the DC Voltage position.
! WARNING

Fan Motor

KC270A
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