Pontiac Fiero 1988 Service Manual page 33

1A-8 HEATING AND VENTILATION
< 3 > IMPROPER AIR DELIVERY O R NO MODE SHIFT
WITH T H E V E H I C L E ON AND T H E E N G I N E WAsRM, RUN T H E FOLLOWING FUNC-
TIONAL C H E C K S . C H E C K C A B L E S F O R E X C E S S I V E E F F O R T OR BINDING.
MODE TEMP
LEVER
FAN
SWITCH
BLOWER
SPEED
POUVER
VBNT
OUTLET
HEATER
OUTLET
DEFR.
OUTLET
SIDE
WINDOW
DEFOGGER
OUTLET
VENT
COLD OFF
OFF N 0
AIRF LOW
NO
AIRFLOW
NO
AIRFLOW
NO
AIRFLOW
VENT COLD HIGH HIGH AMBJENT
AIRFB-OW
NO
AIRFLOW
NO
AIRFLOW
NO
AIRFLOW
HEATER COLD
TO HOT
HIGH HIGH N O
AIRFL-OW
COLD TO
HOT
AIRFLOW
MINIMUM
C0LDT0H0T
AIRFLOW
MINIMUM
COLDTOHOT
AIRFLOW
DEFROSTER COLD
TO HOT
HIGH HIGH N O
AIRFL_0W
MINIMUM
COLD TO
HOT
AIRFLOW
COLD TO
HOT
AIRFLOW
MINIMUM
COLD TO
HOT
AIRFLOW
C H E C K DOOR E F F E C T E D AT U MIT F O R C A B L E
C O N N E C T E D & C A B L E SHEATTH RETAINED
OK
D I S C O N N E C T C A B L E AT DOOR & C H E C K DOOR
TRAVEL & E F F O R T
.
1
NOT OK
REPAIR A S N E C E S S A R Y
NOT O K
REPAIR A S N E C E S S A R Y
OK
n
C H E C K BOWD E N C A B L E TRAVEL B Y
MOVING C O N T R O L L E V E R
T R A V E L OK
R E I N S T A L L &
R E C H E C K
NO TRAVEL
C H E C K C A B L E ATTACHMENT AT C O N T R O L & C H E C K
FOR B R O K E E N C O N T R O L . REPAIR A S N E C E S S A R Y .
G20025-1 A
Figure 9 Improper Air Delivery Or Mocde Shift Diagnosis