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8-76
1977 PONTIAC SERVICE MANUAL
Circuit
Color
Black
Dark Green-
W h i t e
W h i t e
Black
Brown
Black
L i g h t G r e e n
Brown
Dark G r e e n
:olor depends
m
Resistance
Brown-White
Black-Pink
Brown
Pink-Black
O r a n g e
Brown-White
Black
Black
Black
Black
Black
Black
W h i t e
White-Black
White-Dark
G r e e n
Black-Purple
W h i t e
Black
G r a y
Purple
Dark Blue
Brown
Dark Blue-
W h i t e
Tan
Dark G r e e n
Purple
Light G r e e n
C i r c u i t N a m e
3uzzer t o Low A i r Pressure o r
Vacuum Switch
relltale Temperature G a u g e ( H o t )
Senerator
( A l t e r n a t o r )
t o Regulator
) o w e ? '
Trans.
-
Relay t o Thermo
Switch (Truck)
rachometer t o C o i l
jwitch on Shift Lever t o A d a p t e r ,
o r t o M o t o r on Rear Axle ( L o w ) ,
o r t o A d a p t o r ( L o w ) (Truck)
j w i t c h t o Diff. Lock-Out Valve
(Truck)
Diesel I g n i t i o n
-
Buzzer t o No. 4 "L"
on Voltage
Regulator
(Truck)
rwo-Speed Axle
-
Switch on Shift
Lever t o M o t o r o n Rear Axle
( H i g h ) (Truck)
Generator
( A l t e r n a t o r )
External
Resistance
2 ohms per f o o t
I
ohm per f o o t
Low Vacuum t o A i r Pressure
W a r n i n g L i g h t t o Switch (Truck)
Feed, Ign. Sw. "On"
Controlled
-
Fused
Feed.
Battery
-
Fused
Feed Ign. Sw. Accsy. Controlled
-
Fused
G r o u n d C i r c u i t
-
Direct
G r o u n d C i r c u i t
-
Direct
G r o u n d C i r c u i t
-
Direct
G r o u n d C i r c u i t
-
Direct
G r o u n d C i r c u i t
-
Direct
G r o u n d C i r c u i t
-
Direct
G r o u n d C i r c u i t
-
Switch Controlled
-
Body Interior Lamps
-
such as Dome,
Courtesy.
M a p . W a r n i n g , etc.
G r o u n d
-
Key W a r n i n g Buzxer
Power Antenna
-
Down
Power Antenna
-
U p
Power Top
-
U p
Power Top
-
Down
W i n d o w C o n t r o l
-
L. F.
-
U p
W i n d o w C o n t r o l
-
L. F.
-
Down
W i n d o w C o n t r o l
-
R.F.
-
U p
W i n d o w C o n t r o l
-
R. F.
-
Down
W i n d o w C o n t r o l
-
L. R.
-
U p
W i n d o w C o n t r o l
-
L. R.
-
Down
W i n d o w C o n t r o l
-
R.R.
-
U p
Circuit
Number
171
172
173
174
175
I 7 6
177
I 7 8
179
180
18
1
I 8 2
I 8 3
I 8 4
I 8 5
186
I 8 7
188
I 8 9
I
90
191
192
193
194
I 9 5
I 9 6
197
198
199
200
20
1
239
240
24
1
340
C i r c u i t
C o l o r
Purple-White
Light G r e e n
Yel:ow
L i g h t Green
Yellow-Black
Dark G r e e n
Yellow
Dark G r e e n
Tan
Light G r e e n
L i g h t Blue
Yellow
L i g h t Blue
Tan-White
Tan
G r a y
Tan-Black
Gray-Black
Dark G r e e n
Yellow
L i g h t G r e e n
Purple
White-Purple
&
O r a n g e
Red
W h i t e
L i g h t Blue
Black
L i g h t G r e e n
Brown
L i g h t G r e e n
Tan
Pink-Black
O r a n g e
Brown-White
O r a n g e
Circuit N a m e
N i n d o w C o n t r o l
-
R. R.
-
Down
t e n t C o n t r o l
-
L. F.
-
Close
t e n t C o n t r o l
-
L. F.
-
O p e n
t e n t C o n t r o l
-
R. F.
-
Close
t e n t C o n t r o l
-
R. F.
-
O p e n
Power Seat
-
Fore
)ewer
Seat
-
A f t
Power Seat
-
6 - W
-
Fore and A f t
Power Seat
-
6 - W
-
Solenoid
-
Rear
-
U p and Down
Power Seat
-
6 - W
-
Solenoid
-
Frt.
-
U p and Down
'ower
Seat
-
Solenoid
-
Fore and A f t
Power Seat
-
6 - W
-
A f t and Down
railgate or C e n t e r Partition
W i n d o w
-
U p
railgate or Center Partition
W i n d o w
-
Down
Vent C o n t r o l
-
L. R.
-
O p e n
Vent C o n t r o l
-
L. R.
-
Close
Vent C o n t r o l
-
R. R.
-
O p e n
Vent C o n t r o l
-
R. R.
-
Close
Power Seat
-
4 - W
-
Fore and Down
Power Seat
--
4 - W
-
A f t and U p
Power Seat
-
4 - W
-
Solenoid
-
U p and Down
Defogger
-
H i g h o r Single Speed
Defogger
-
Low Speed
-
.38 ohm/ft.
R. H.
W h e e l Pick-Up t o Electronic
C o n t r o l
R.
H.
W h e e l Pick-Up t o Electronic
C o n t r o l
L.
H.
W h e e l Pick-Up t o Electronic
C o n t r o l
L.
H.
W h e e l Pick-Up t o Electronic
C o n t r o l
I n - C a r Sensor t o C o n t r o l
Rear Seat Speaker
-
Feed f r o m Radio
L e f t Stereo
Front Speaker
-
Feed f r o m Radio
-
Single or Right Stereo
Front Speaker
-
Feed f r o m Radio
-
L e f t Stereo
Feed, Ign. Sw. "On"
Controlled
-
Fused
Feed.
Battery
-
Fused
Feed Ign. Sw. Accsy. Controlled
-
Fused
Feed.
Battery
-
Fused
I
Fig. 8-95 Electrical Wire Codes By Circuit Number
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