GMC 1982 Light Duty Truck Service Manual page 32

C I R C U I T
OFF
B A T - O N L Y
LO
B A T - L O
M E D B A T - M E D
HI
B A T - H I
HI
M E D
< CD
(N C N C T T
LO
5 0
BAT
J
B L O W E R
S W I T C H
I N S T . P A N EL H A R N
C I R C U I T # 4 ( A C C )
2 5 A M P I N FUSE P A N E L
C-K MODELS
HEATER O P E R A T I O N
B A T - B L O S W - R E S Rl R 2 -
LO
BLO M T R - G R D
M E D B A T - B L O S W- R E S Rl-
B LO M T R - G R D
B A T - B L O S W -
HI
BLO M T R - G R D
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1 6 O R N
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o r n
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1 4 O R N
Fig. lA-4--Heater W iring Diagrams
J W V W r - 7 |
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1 BLO M E D |
1 6 YEL
FUSE
P AN EL
J U N C T I O N BLOCK
HEATER
B L O W ER
RESISTOR
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H
J
D A S H
( I N E N G H A R N )
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B U L K H EA D C O N N
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B L O W E R
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M O T O R
1A-7