Engine Coolant Temperature (Ect) Sensor; Fan Motor - Arctic Cat ROV 2013 Service Manual

NOTE: The ignition switch must be in the ON
position.
VOLTAGE (Wiring Harness
Connector)
1. Set the meter selector to the DC Voltage position.
2. Connect the red tester lead to the orange 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, the connector, and the switch
wiring harness for resistance.
RESISTANCE (Switch Connector)
CAUTION
Always disconnect the battery when performing resis-
tance tests to avoid damaging the multimeter.
NOTE: The brake pedal must be depressed for
this test.
1. Set the meter selector to the OHMS position.
2. Connect the red tester lead to one black wire; then
connect the black tester lead to the other black wire.
78
3. When the lever is depressed, the meter must show
less than 1 ohm.
NOTE: If the meter shows more than 1 ohm of
resistance, replace the switch.
Engine Coolant
Temperature (ECT)
 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
PR276A
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
40° C (104° F), the meter should read approximately
1136 ohms.
4. On the ECT sensor when the temperature reaches
100° C (212° F), the meter should read approxi-
mately 155 ohms.
5. If the readings are not as indicated, the sensor must
be replaced.
6. Install the sensor and tighten securely.
7. Connect the leads.
 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).
RESISTANCE (Fan Motor Connector)
1. Set the meter selector to the OHMS position.
2. Connect the red tester lead to the red wire; then con-
nect the black tester lead to the black wire.
AR621D
Sensor
! WARNING

Fan Motor