Subaru 1600 Service Manual page 593

HEATING, VENTILATING AND AIR-CONDITIONING SYSTEM
5) Radiator Fan (Main Fan) Diagnoses
NOTE:
Follow this chart while referring to the description of
the electrical system (page 13-16).
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Radiator fan (main fan) will not operate.
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I
I
Check 15 A fuse for radiator fan
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(main fan).
1
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Fuse is blown.
1
I
Fuse is normal.
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Locate short-circuited spot, and repair or replace Connect one end of a 12·volt test Ugh t to fan
damaged parts. motor lead wire, and ground the other end.
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Light ON
I
I
Light OFF
J
Turn AIC switch off.
Connect one end of a 12-volt test light to main fan Check wire discontinuity on the side of electric
control relay Yellow/White wire and ground the power source.
other end.
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Light ON
I
I
Light OFF
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Turn AIC switch off, and disconnect electric
connectors for pressure switch (main fan control)
Check lead wire connections.
and sub fan relay. Connect one end of a 12-volt
When no problem is found, replace main fan.
test light to AIC relay Yellow wire and ground the
other end.
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Light ON
I
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Light OFF
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Check AlC relay connector. Check lead wire connection.
If the connector is in good condition, replace AIC
When no problem is found, replace main fan control
relay. relay.
13-48
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