Troubleshotting
U-15
Step Inspection Action
7
Inspect air port.
l Is air port clogged?
Yes Remove obstruction, then go to step
9.
No Go to next step.
8
Verify that defroster duct is installed.
l Is defroster duct properly installed?
Yes Check air passage for clogging,
deformity, and air leakage, then go
to next step.
No Assemble properly air passage in
right position, and go to next step.
9
Verify if malfunction symptom occurs after repair.
l Does air blow out?
Yes Troubleshooting completed.
Explain conditions to customer.
No Recheck malfunction symptoms,
and repeat from step 1 if
malfunction reoccurs.
Ii. Airflow of air port can not be changed.
2 Airflow of front air port can not be changed.
Malfunction
description
Malfunction in front blower system
Possible causes
Malfunction in front blower, relay, front blower motor, front resistor, front fan switch
or related harness: step 1
Malfunction in blower assembly: step 2-4
Troubleshooting procedure
Step Inspection Action
1
Inspect blower system
Inspect the systems and electrical parts listed below:
Front blower motor relay
Front blower motor
Front resistor
Front fan switch
Relevant harness
Are all these parts normal?
Yes Go to next step.
No Repair or replace the failed parts
and go to step 5.
2 Verify whether malfunction occurs in blower
assembly or elsewhere.
l Turn ignition switch to on position.
l Turn fan switch on.
l Is there noise with blower in operation?
Yes Go to next step.
No Go to step 4.
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