Subaru XT 1988 Service Manual page 1074

4-7
AIR CONDITIONING SYSTEM
Condenser Fan (Sub Fan) Diagnoses
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Condenser fan (sub fan) will not operate.
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Check 20A fuse for condenser fan (sub fan).
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Fuse is blown.
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Fuse is normal. I
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Locate short·circuited spot, and repair or replace
Disconnect ground terminal from battery and turn
damaged parts. fan with your hand.
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Fan turns smoothly.
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Fan does not turn smoothly.
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Check if fan turns when fan motor lead is
Replace fan motor ASSY* 1.
connected directly to battery terminal.
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[
Fan turns.
I I Fan does not turn.
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Check condenser fan (sub fan) relay. Replace fan motor ASSY* 1.
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No
Yes l
Faulty relay I
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Disconnect connector from relay (A/C, radiator
Replace condenser fan (sub fan) relay.
fan, condenser fan) and check for continuity. *2
Yes
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No
[
Normal I
Check diode inside fender and replace if faulty.
1
Connect battery ground terminal. Check if 12
volts are produced at LW lead of condenser fan
relay connector when ignition key is turned ON.
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No
Yes
Check power harness and repair or replace if
faulty.
,r
OK
52