Pontiac FIREBIRD 1972 Service Manual page 1417

15-2 1972 PONTIAC SERVICE MANUAL
T U R N I G N I T I O N S W I T C H T O A C C E S S O R Y POSITION.
T O CHECK F U S E . T U R N H E A T E R B L O W E R MOTOR ON.
IF B L O W E R O P E R A T E S . F U S E I S O . K .
U S I N G P R O B E , CONNECT T E S T L I G H T T O B L U E
W l R E A T R E G U L A T O R CONNECTOR.
I
C O N N E C T T E S T
L A M P F R O M B L A C K
WlRE A T R E G U L A T O R
T O GROUND.
I I
DISCONNECT 3-WIRE D E P R E S S ENGAGE-
CONNECTOR A T M E N T S W I T C H
S T E E R I N G C O L U M N
,
F U L L Y .
A N D CONNECT T E S T
L A M P F R O M B L A C K
WlRE H E R E TO
GROUND.
I
R E P L A C E REGULATOR R E P L A C E ENGAGE-
V A L V E BODY AND M E N T S W I T C H .
M A G N E T A S S E M B L Y .
I
WIRE B E T W E E N
BROWN WlRE A N D
I
R E P L A C E ENGAGE-
M E N T S W I T C H .
C O N N E C T T E S T
L A M P F R O M B L U E
W l R E A T 3-WIRE
CONNECTOR ON
S T E E R I N G C O L U M N
T O GROUND.
I
C I R C U I T I N B L U E L A M P F R O M BROWN
WIRE B E T W E E N WIRE A T S T E E R I N G
CONNECTOR A N D C O L U M N CON-
R E G U L A T O R . NECTOR T O GROUND.
I
R E P L A C E ENGAGE-
I
C O N N E C T T E S T
M E N T S W I T C H . L A M P F R O M EACH
BROWN W!RE A T
B R A K E SWITCH TO
GROUND.
B L U E WIRE A T
-
S T E E R I N G C O L U M N
CONNECTOR.
CONNECT T E S T
L A M P F R O M B L A C K
WlRE TO GROUND.
D E P R E S S E N G A G E -
M E N T S W I T C H
I
I
I
CHECK FOR O P E N R E P L A C E B R A K E CHECK FOR O P E N
C I R C U I T I N WlRE T O
S W I T C H . C I R C U I T I N WIRE TO
S T E E R I N G C O L U M N F U S E B L O C K .
CONNECTOR.
H O L D S W I T C H
B U T T O N I N A N D
P R E S S B R A K E
R E P L A C E ENGAGE-
P E D A L .
M E N T S W I T C H .
I
R E P L A C E B R A K E S Y S T E M E L E C T R I C -
S W I T C H . A L L Y
0.
K .
Fig. 15-1 Cruise Control Electrical Check-Out Procedure