Subaru 1600 Service Manual page 590

HEATING, VENTILATING AND AIR-CONDITIONING SYSTEM
2)
Blower Motor Diagnoses
Blower motor inoperative
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Check 20A fuse for blower relay, and 15A fuse
between ignition switch and blower relay.
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Fuse blown
Fuse OK
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Locate short-circuited spot and repair or replace
Ground black wire leading to relay
faulty parts.
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Blower runs.
Blower does not run.
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Check lead wire connection.
Ground one of lead wires, yellow/green (Extra
When no problem is found, replace relay.
Hi speed), yellow/black (Hi speed), yellow/red
(Med. speed), yellow (Low speed) leading to .
blower switch.
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Blower runs.
Blower does not run.
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Check ground circuit connection and lead wire
connection. When no problem is found, replace
Ground red/white wire of blower motor.
blower speed switch.
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Blower runs.
Blower does not run.
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Check connection of resistor. When no problem is
Connect 12-volt test light to green/white wire lead-
found, replace resistor.
ing of blower motor.
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Light ON
Light OFF
1
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Check lead wire connection. When no problem
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Check connector and check fuse holder, too.
is found, replace blower motor. Repag or replace damaged parts, if any.
13-45
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