2008 Arctic Cat ATVs factory service and repair manual, Page 347Get this manual
7On the ECT sensor when the temperature reaches 80' (176' F), the meter should read approximately 18 ohms8On the ECT sensor when the temperature reaches 110' (230' F), the meter should read approximately 142 ohms9If the readings are not as indicated, the switchlsensor must be replaced 10Install the switchlsensor and tighten securely11Connect the leads3The meter must show less than ohm
Fan Motor
The connector is the black two-prong one located behind the fan assemblyINOTE: The ignition switch must be in the ON position
INOTE: If the meter shows more than ohm of resistance, troubleshoot or replace the switchcomponent, the connector, or the switch wiring harnessINOTE: To determine if the fan motor is good, connect the blue wire from the fan connector to the positive side of 12 volt DC power supply; then connect the black wire from the fan connector to the negative sideThe fan should operate
VOLTAGE (Main Harness Connector to Fan Motor) 1Set the meter selector to the DC Voltage position 2Connect the red tester lead to the blacklred wire (5001700 EFIIH1 Models) or the blacklorange wire (400); then connect the black tester lead to ground3The meter must show battery voltageINOTE: If the meter shows no battery voltage, troubleshoot the battery, fuse, motor, or the main wiring harnessINOTE: If the meter shows battery voltage, the main wiring harness is goodThe connector should be checked for resistance