Pontiac FIREBIRD 1972 Service Manual page 196

AUTOMATIC TEMPERATURE CONTROL 1B-9
TO M I X DOOR
--%
1- GROUND
7
2- BAT. 12V.
V A C U U M
I
-
HOT VALVE 4- RECIRC. D o o n 7 - L O W E R MODE SIGNAL
VALVE
a-
VAC. SUPPLY INPUT I
-
M O D E I N P U T 8 - UPPER M O D E D O O R ( 1 1 - L E V E L )
P O R T S
3 -
N C I M . I N P U T 6 - UPPER M O D E D O O R ( N O D l - L E V E L ) 9 - CHECKED V A C U U M
Fig. 1 B-6 Identification of B Series Programmer Components