Troubleshotting
U-17
Step Inspection Action
2
Verify that airflow mode cable of a/c unit is
positioned securely and correctly.
l Is airflow mode cable positioned securely
and correctly in relation to airflow links of
front a/c unit?
Yes Go to next step.
No Adjust airflow mode cable or install
correctly, and then go to step 6.
3
Inspect front climate control unit
l Inspect the front climate control unit as
per items shown below:
— Is engagement of rack-and-pinion proper?
— Is airflow mode cable properly installed in
correct direction relative to rack?
— Is cable clamp distorted?
l Are all above items normal?
Yes Go to next step.
No Restore proper engagement of
rack-and-pinion or install airflow mode
cable in correct direction, then go to step
6.
4
Inspect airflow mode doors of front a/c unit.
l Is there any foreign material or
obstructions in any of a/c unit doors?
Yes Remove obstruction, then go to step 6
No Go to next step.
5
Verify that all airflow mode doors of front
a/c unit are positioned firmly and properly.
l Are all doors of front a/c unit firmly and
properly positioned?
Yes Inspect each door for crack or damage,
then go to next step.
No
Install malfunction doors securely in
proper position, then go to next step
6 Verify whether malfunction symptom
occurs after repair.
l Does airflow mode change?
Yes Troubleshooting completed. Explain
conditions to customer.
No Recheck malfunction symptoms, and
then repeat from step 1 if malfunction
reoccurs.
Iv. Fogged windshield
4
Fogged front windshield
Malfunction
symptom
The indicator light doesn’t work when airflow is in defroster mode
Fresh of front climate control unit in defroster mode or in heat/defroster mode.
Possible causes
Malfunction in front climate control unit (ig2 signal) system, steps 2 and 4
Malfunction in air intake actuator, steps 3,6-9
Malfunction in front climate control unit (recirculate and fresh signal) system, steps
7,10—12
Malfunction in air intake door of blower assembly, steps 13, 14
When performing an asterisked (*) troubleshooting, shake the wiring harness and connectors to verify
whether the intermittent malfunctions are caused by poor contact. If there is any problem, make sure that
connectors, terminals and wiring harness are connected correctly and undamaged.
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