Pontiac Fiero 1988 Service Manual page 1064

A I R C O N D I T I O N I N G : A I R D E L I V E R Y
C 6 0 , M A N U A L
T R O U B L E S H O O T I N G H I N T S
• Try the following checks before doing the
System Check.
1. If either of the door actuators works when
first operated, but slows down or stops after
a few operations, check the actuator and
linkage for binding.
2. If actuator operation can be heard, but air
delivery is not correct, check actuator
linkage.
• Go to System Check 8A-62 for a guide to
normal operation of the entire A/C System.
• Go to System Check for a guide to normal
operation of the A / C Air Delivery.
• Go to System Diagnosis for diagnostic tests.
S Y S T E M C H E C K
• Use the System Check Table as a guide to
normal operation of the A/C Air Delivery.
© [Refer to System Diagnosis for a list of symp-
toms and diagnostic steps.
S Y S T E M C H E C K T A B L E
Mode
Selector
Heat/
De-
frost
Door
Mode
Door
Out-
side/
Recir-
culat-
ing
Door
Air Flow
OFF A C
A No Blower
operation
MAX A A
B Recirculated
Air from In-
strument
Panel Outlets
and Floor
C O M P O N E N T L O C A T I O N
Page-Figure
Fuse Block. Behind LH side of I/P 201- 6-D
Mode Door Actuator Rear of heater-A/C module 201- 8-C
Recirculating Door A c t u a t o r . . . . . . . Rear of heater-A/C module 201- 8-C
G201 Behind center of I/P 201- 6-C
S212. Main harness, behind center of dash 201- 6-C
(Continued from previous column)
NORM A A
A Fresh Air
from Instru-
ment Panel
Outlets and
Floor
BI-LEV
A B
A Fresh Air
from Instru-
ment Panel,
Floor and
Windshield
Outlets
VENT A A
A Fresh Air
from Instru-
ment Panel
Outlets and
Floor
HTR A C
A Fresh Air
from Floor
and bypass to
Windshield
DEF B C
A Fresh Air
from Wind-
shield and by-
pass to Floor
Refer to System Diagnosis when a result is
not normal.
S Y S T E M D I A G N O S I S
• Do the tests listed for your symptom in the
Symptom Table below.
• Tests follow the Symptom Table.
S Y M P T O M T A B L E
SYMPTOM DO T E S T
Air delivery does not
switch from
recirculate to outside
to recirculate when
Mode pushbuttons
are set for MAX,
then NORM, then
MAX
Test A
Air delivery does not
switch from A/C
Outlets to A/C and
Heat Outlets to Heat
Outlets to Defrost
Outlets as Mode
pushbuttons are set
for VENT, B/L,
HTR, and
DEFROST
TestB
(Continued in next column)
(Continued on next page)