GMC 1982 Light Duty Truck, Service Manual, Page: 1339 / 1435

INSTRUMENT PANEL AND GAGES 8C-47
E L E C T R I C A L C I R C U I T I D E N T I F I C A T I O N ( C o n t ' d )
Circuit
Number
Circuit
Color
Circuit Name
Circuit
Number
Circuit
Color
Circuit Name
71 Black
Ground, A/C Selector Sw. "D e f"
Controlled
131 Black-Pink Generator (Alternator) Ext.
Resist. 1 Ohm/Foot
72 Light Blue
Feed, Blower Sw. "Medium 2 '
132 White Ground, Fuel Economy Sw.
Controlled
Controlled, Amber Telltale
73 Purple-White
Feed, Blower Sw. "Medium 3 "
Controlled
133 Yellow Ground, Fuel Economy Sw.
Controlled, Grn. Telltale
74 Light Green
Feed to Throttle Switch
135 Dark Green
75
Dark Blue
Feed, Ign. Sw. "On and Crank"
Controlled - Fused
White Ground, Resistive, Temp. Gauge
Sensor Controlled
76 Pink
Feed, Ign. Sw. Controlled
139
Pink-Black Feed, Ign. Sw. "On and Crank"
78
Light Blue
Electric Choke Feed
Controlled - Fused
80 Light Green
Ground Key Warning Buzzer
140 Orange Feed, Battery - Fused
81 Nat. White
Electric Remote Mirror, Right
141 Brown-White Feed, Ign. Sw., "Accsy and On"
82 Light Blue
Electric Remote Mirror, Left
Controlled
83
Dark Green
Feed, Cruise Engage Sw.
"R etard" Controlled
142 Black Rr Compartment Lid Lock
Release
84 Dark Blue
Feed, Cruise Engage Sw.
143 Pink Feed Radio Sw. 'O n" Controlled
"Engage" Controlled
144 Yellow Feed to Pwr A nt Sw.
85 White
Ground, Cruise Indicator
Regulator Controlled
145 Dark Green Feed, Pwr Ant Up, Relay Con­
trolled
86 Brown
Feed, Cruise Brake Release Sw.
146
Dark Green Ground, Trunk Release Tell-Tale
Controlled
150
Black Ground Circuit - Direct
88
Yellow
Electric Remote Mirror, Up
151 Black Ground Circuit - Direct
89 Light Green
Electric Remote Mirror, Down
152
Black Ground Circuit - Direct
90 Pink
Feed, Cutout Sw. Controlled,
153
Black Ground Circuit - Direct
Cir. Brkr. Protected
154 Black Ground Circuit - Direct
91 Gray
Windshield Wiper - Low
155 Black Ground Circuit - Direct
92 Purple
Windshield Wiper - Hi
156
White
Ground Circuit - Sw. Controlled
93 White
Windshield Wiper Motor Feed
Body Interior Lamps - such
94 Pink
Windshield Washer Sw. to Washer
as Dome, Courtesy, Map,
95 Dark Green Ground, Pulse Wiper Sw. Warning, etc.
Controlled
157 Gray Ground Circuit - Sw. Controlled -
96 Brown
Feed, Pulse Wiper Rheostat Sw.
Controlled
Body Interior Lamps - such as
Dome, Courtesy, Map, Warning
99 Black-White
Windshield Washer Low Fluid
etc.
101
Dark Blue Resistor Output to Blower Relay
158 Black-Orange Ground Circuit - Sw. Controlled -
102 White
SL Alternator - Regulator
Sensing Circuit
Body Interior Lamps - such as
Dome, Courtesy, Map, Warning
105 Black
Ammeter - Generator
etc.
106
Gray
Ammeter - Battery 159 Tan
Ground, Key Warning Buzzer
107
Dark Blue
Over Speed Warning Light
160 White Power Antenna Down
111 Black Ground, Anti-Ski Low Air Sw. 161 Black Power Antenna Up
Controlled 162 Gray Power Top - Up
112 Dark Green
Telltale Temperature Gauge (Hot)
163 Purple Power Top - Down
115 Light Blue Speaker Return, RT rr Stereo 164 Dark Blue Window Control LF Up
116 Yellow
Speaker Return, LF rr Stereo
165
Brown
Window Control LF Down
117 Dark Green Speaker Return, RT Frt. Stereo 166 Dark Blue-
118 Gray Speaker Return, LF Frt. Stereo White Window Control RF Up
119
White
Generator (Alternator) to 167 Tan
Window Control RF Down
Regulator
168
Dark Green
Window Control LR Up
120 Purple Electric Fuel Pump Feed 169 Purple
Window Control LR Down
121
White
Tachometer to Coil
170
Light Green
Window Control RR Up
125 Yellow
Door Jamb Switch 171 Purple-White Window Control RR Down
126 Black Seat Back Lock Feed 172 Light Green
Vent Control LF Close
130 Brown-White
Generator (Alternator) Ext.
173 Yellow
Vent Control LF Open
Resist. 2 Ohms/Foot 174 Dark Green
Vent Control RF Close