Coolant Temperature And Cooling Fan Switches (Prowler/Xt); Engine Coolant Temperature (Ect) Sensor (Xtx) - Arctic Cat 2008 Prowler Service Manual

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.
Coolant Temperature
and Cooling Fan
Switches
(Prowler/XT)
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 coolant temperature switch when the oil
temperature reaches 112-118° C (234-244° F), the
meter should show a closed circuit.
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4. On the coolant temperature switch, allow the oil to
cool, and when the temperature is within a temper-
ature range of 107-113° C (225-235° F), the meter
should show an open circuit.
5. On the cooling fan switch when the temperature
reaches 81-99° C (175-213° F), the meter should
show a closed circuit.
6. On the cooling fan switch, allow the oil to cool,
and when the temperature is within a temperature
range of 67-82° C (150-184° F), the meter should
show an open circuit.
7. If the readings are not as indicated, the switch
must be replaced.
8. Install the switch and tighten securely.
9. Connect the switch leads.
Engine Coolant
Temperature (ECT)
Sensor
1. Connect the meter leads (selector in OHMS posi-
tion) to the sensor terminals.
2. Suspend the sensor and a thermometer in a con-
tainer 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.
! WARNING
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 approxi-
mately 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.
Back to Section TOC
(XTX)
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