Chevrolet CHEVY VAN G10 SERIES Service Manual page 320

ELEC TR IC A L - BODY A N D CHASSIS 12-20
Circuit Circuit
Num ber
C olor
2 Red
3 Pink
W hite - Purple
3
& Orange
W hite-Red &
3
Black
4 Brown
5 Purple
6 Purple
Y ellow
7
8 Gray
9 Brown
10 Light Blue
11
Light Green
12 Tan
13 Purple
14 Light Blue
15 Dark Blue
16 Purple
17 White
18 Y ellow
19 Dark G reen
2 0 Red
22 White
2 4 Light Green
Brown
25
Dark Blue
2 6
Brown
27
Black
28
29 Dark Green
3 0 Tan
31 Dark Blue
32 Y ellow
33 Tan
34 Purple
Dark Green
35
ELECTRICAL C IR C U IT ID E N TIFIC A TIO N
Circuit Nam e
F eed , Battery - U nfused
F eed , Ign. Sw . "O n" C ontrolled -
U nfused
Primary Ignition V oltage - D ropping
R esistor. .38 o h m /ft.
Primary Ignition V oltage - D ropping
R esistor 30 o h m ./ft.
F eed . Ign. Sw . A ccy . C ontrolled -
U nfused
Neutral S a fety S w itch Feed or Neutral
S afety S w itch to R elay (Truck ) or
Relay to Ignition S w itch (Truck)
(A u to . Trans.)
Starter S olen oid Feed
Primary Ignition R esistance Bypass
Instrum ent and Panel Lights,
(F used N o . 4 4 Circuit)
Tail and License Lam p, Forward Side
Marker Lamps.
Tail, Clearance and Marker Lamps
(Trailers)
Dim m er S w itch Feed
H eadlam p, High Beam
H eadlam p, Low Beam
Front Parking Lamps
L.H . Indicator and F ront
D irection Light
R. H. Indicator and Front
D irection Light
D irection Signal S w itch, F eed
from Flasher
D irection Signal S w itch, F eed
from S top Sw itch
Stop and D irection Lamp or D irection
Lamp O nly - Rear L.H.
S top and D irection Lamp, or
D irection Lamp O nly - Rear R.H .
Stop Lam p (Trailer)
Ground - Direct (Trailer Wiring)
Back-Up Lamp
Generator or G enerator Arm ature
to V oltage Regulator "A " (Includes
G enerator Telltale Circuit) or
R egulator to Ignition Sw itch (Truck)
Field Circuit (F ) (G en./R eg.)
Traffic Hazard S w itch, F eed from
Flasher
Horn Sw itch
Horn Feed
F uel Gauge to Tank Unit
Oil Pressure - Engine
Map Light
Warning Light - Brake Alarm
Fog or Drive Lamp
T elltale T em p. Gauge (H ot), or Std.
T em p. - Readable Gauge.
Circuit
Circuit
Color
Num ber
Dark Blue Flasher, F use Feed
38
F eed , Ign. Sw . " On" C ontrolled
Pink-Black
39
Fused
F eed , Battery - Fused
Orange
4 0
F eed , Ign. Sw . A ccsy. C ontrolled -
Brown-W hite
41
Fused
Radio Feed
Y ellow
4 3
Instrum ent and Panel Lights, F eed
4 4 Dark Green
(U sually Light S w itch to Fuse)
Marker and Clearance Lamps
Black
45
(Trailers - ICC Requirem ent)
Rear Seat Speaker F eed from Radio
46 Dark Blue
Single or R t., Stereo
A uxiliary Circuits (Trailer)
47 Dark Blue
M od. A ssem bly to C ontrol
49 Gray
Blower S w itch - Feed
5 0 Brown
Y ellow Blower F eed - Low
51
Blower F eed - High
52 Orange
K ick-D own on A u tom atic Transm ission
Orange
55
A m plifier to H eatsink (R adio)
Tan
56
Com pressor to Air C onditioning
59 Dark Green
S w itch
F eed , Battery -
60 Orange-Black
Circuit Braker P rotected
Blow er-Sw itch C ontrol - Low and Feed
63 Tan
Blower M otor to Relay
Purple
65
F eed , R elay C ontrolled -
70 Red-White
Circuit Breaker P rotected
Blower S w itch Medium to Blower
72 Light Blue
Resistor
Dark Green Back-Up S w itch or Parking Brake
75
Alarm F eed
F eed-K ey Warning Buzzer
8 0 Pink-Black
Pink-Black F eed , C u tout Sw . C ontrolled -
9 0
Circuit Breaker Protected
W indshield Wiper - Low
91 Black
W indshield Wiper - High
Light Blue
9 2
W indshield Wiper M otor-Feed
93 Y ellow
W indshield Washer S w itch to
94 Dark Blue
Windshield Washer
Resistor O utput to Blow er R elay
101 Dark Blue
SI Alternator Regulator Sensing
102 White
Circuit
Black Am m eter - Generator
105
A m m eter - Battery
106 Black-White
Over-Speed Warning Light
Dark Blue
107
Buzzer to L ow Air Pressure or
111 Black
V acuum Switch
Telltale Tem perature Gauge (H ot)
Dark G reen
112
White
G enerator (A lternator) to Regulator
White
119
Power Trans. Relay to Thermo
120 Black
S w itch (Truck)
Tachom eter to Coil
121 Brown
Circuit Nam e
C H E V Y V A N SH O P M A N U A L