Subaru IMPREZA 2004 Service Manual page 96

Cooling System
PERIODIC MAINTENANCE SERVICES
3) Start the engine, and then check it does not
overheat or it is cooled excessively. If it overheats
or it is cooled excessively, check the cooling sys-
tem.
SOHC model
<Ref. to CO(H4SO)-15, Water Pump.>
<Ref. to CO(H4SO)-18, Thermostat.>
<Ref. to CO(H4SO)-19, Radiator.>
<Ref. to CO(H4SO)-22, Radiator Cap.>
DOHC Turbo model
<Ref. to CO(H4DOTC)-20, Water Pump.>
<Ref. to CO(H4DOTC)-22, Thermostat.>
<Ref. to CO(H4DOTC)-23, Radiator.>
<Ref. to CO(H4DOTC)-27, Radiator Cap.>
4) Check the electric fan operates using Subaru
Select Monitor, when the coolant temperature ex-
ceeds 95 C (203 F). If not operate, check the elec-
tric fan system.
SOHC model
<Ref. to CO(H4SO)-6, Radiator Main Fan Sys-
tem.>
<Ref. to CO(H4SO)-9, Radiator Sub Fan System.>
DOHC Turbo model
<Ref. to CO(H4DOTC)-8, Radiator Main Fan Sys-
tem.>
<Ref. to CO(H4DOTC)-13, Radiator Sub Fan Sys-
tem.>
PM-20