|
Step
|
Action
|
Yes
|
No
|
|
DEFINITION: Time required to defrost the windshield is longer than normal.
|
1
|
Were you sent here from Symptoms or another diagnostic table?
|
Go to
Step 2
|
Go to
Symptoms - HVAC Systems - Automatic
|
2
|
|
2.
|
Select the DEFROST mode.
|
|
3.
|
Select the maximum blower speed.
|
Does sufficient air flow from the defroster outlets?
|
Go to
Step 3
|
Go to
Step 6
|
3
|
|
1.
|
Select the minimum blower speed.
|
|
2.
|
Select the maximum temperature setting.
|
Does the inlet hose feel warmer than the outlet hose?
|
Go to
Step 7
|
Go to
Step 4
|
4
|
Perform the A/C system performance test. Refer to
A/C system performance test
.
Is the A/C system operating within the specifications?
|
Go to
Step 5
|
Go to
Step 8
|
5
|
Inspect for correct operation of the air inlet door.
Is the air inlet door operating correctly?
|
Go to
Step 10
|
Go to
Step 9
|
6
|
Repair the air delivery concern. Refer to
Diagnostic Starting Point - Vehicle
.
Is the repair complete?
|
Go to
Step 10
|
-
|
7
|
Repair the heating concern. Refer to
Heating Performance Diagnostic
.
Is the repair complete?
|
Go to
Step 10
|
-
|
8
|
Repair the A/C performance concern. Refer to
Air Conditioning (A/C) System Performance Test
.
Is the repair complete?
|
Go to
Step 10
|
-
|
9
|
Repair the air inlet door concern. Refer to
Air Inlet Housing Replacement
.
Is the repair complete?
|
Go to
Step 10
|
-
|
10
|
Operate the system in order to verify the repair.
Did you find and correct the problem?
|
System OK
|
Go to
Step 2
|
