2004 Polaris Sportsman 700 EFI ATV Service Manual, Page 244Get this manual
ELECTRICAL
COOLANT TEMPERATURE SENSOR
This sensor is nonserviceable itemIf it is faulty, it must be replacedThis sensor requires Vdc input to operate, therefore the engine temperature sensor should only be tested using the Polaris Diagnostic Software (dealer only)Refer to the EFI Diagnostic Software Manual for more informationNOTE: If the coolant temperature sensor or circuit malfunctions the radiator fan will default to 'ON'NOTE: The fan may not function or operation may be delayed if coolant level is low or if air is trapped in the cooling systemBe sure cooling system is full and purged of airRefer to Maintenance Chapter for cooling system information
FAN MOTOR CURRENT DRAW
A current draw test will provide good indication of fan motor conditionA worn or damaged fan motor will draw more current, which causes reduction in blade speed and reduced coolingFan Motor OrBlk Connect ammeter between OrBlk pins OrBlk Brn
FAN CONTROL CIRCUIT OPERATIONTESTING