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10-4
POWER DISTRIBUTION
FUSE BLOCK-
UNDERHOOD
Connector
F
To
F on
page
10-5.
IGN A
Fuse 34
40A
E
From
E on
page
10-3.
A/C
Fuse 30
10A
4WD
Fuse 48
15A
HVAC 1
Fuse 39
10A
IGN 0
Fuse 47
10A
TBC IG
Fuse 50
3A
HVAC
Fuse 44
30A
STARTER
RELAY 47
Page 21
A/C
RELAY 44
Pages
63-1 and
65-1
F11
RED
3
F
YEL
3
B5
C201
Connector
C2
RED
3
**59
*31
PPL
0.35
F6
POWERTRAIN
CONTROL
MODULE (PCM)
(4.2L)
(5.2L)
Pages 21, 23 and 24
Connector
C2**
C1*
F7
CRANK
Fuse 17
10A
E
LOCK
LOCK
START
START
ACCY
RUN
RUN
ACCY
LOCK
START
RUN
ACCY
See page
10-12
ORN
3
D1
ORN
3
C5
C1
YEL
3
C201
Connector
WHT
3
WHT
3
C1
G
D
E6
D9
BRAKE
Fuse 51
10A
TBC RUN
Fuse 52
3A
FUSE
BLOCK-
REAR
Connector
See page
10-12
See page
10-16
See page
10-16
See page
10-15
See page
10-15
See page
10-15
*4.2L
**5.3L
IGNITION
SWITCH
Connector
Circuit Schematic
10-5
POWER DISTRIBUTION
FUSE BLOCK-
UNDERHOOD
Connector
G
To
G on
page
10-6.
F
From
F on
page
10-4.
WASH
Fuse 7
20 A
F2
B
E1
HDM
RELAY 46
Page 100
TAN/
WHT
0.35
2
4
E2
YEL
0.35
REAR
WASH
RELAY 38
Page 92
LOW HDLP -RT
Fuse 3
10 A
LOW HDLP -LT
Fuse 6
21 A
COILS
Fuse 14
10 A
HDLP-HI
RELAY 43
Page 100
HI HDLP -LT
Fuse 5
10 A
HI HDLP -RT
Fuse 2
10 A
DK GRN/WHT
0.35
B
A
HEADLAMP-
RIGHT
Page 100
Connector
LT GRN/BLK
0.35
F1
C4
A
HEADLAMP-
LEFT
Page 100
Connector
HDLP
WASH
RELAY 37
(Not used)
Circuit Schematic
10-6
POWER DISTRIBUTION: 5.3L
FUSE BLOCK-
UNDERHOOD
Connector
IGN E
Fuse 22
10A
G
From
G on
page
10-5.
IGN 1
RELAY 58
(5.3L)
7
PNK
0.8
E12
THROTTLE
ACTUATOR
CONTROL
(TAC)
MODULE
Pages 24-5
and 34-2
Connector
C1
HOTIN RUN AND START
See Power
Distribution,
page 10-3.
ETC
Fuse 23
15A
INJ A
Fuse 55
15A
D
IGNITION
COIL 1
Page 20-2
Connector
D
IGNITION
COIL 3
Page 20-2
Connector
D
IGNITION
COIL 5
Page 20-2
Connector
D
IGNITION
COIL 7
Page 20-2
Connector
H
C109
Connector
PNK
0.5
PNK
0.8
PNK
0.8
PNK
0.8
PNK
0.8
PNK
0.8
PNK
0.5
FUEL
INJECTOR 1
Page 24-3
Connector
A
A
A
PNK
0.5
PNK
0.5
PNK
0.5
PNK
0.5
A
FUEL
INJECTOR 3
Page 24-3
Connector
FUEL
INJECTOR 5
Page 24-3
Connector
FUEL
INJECTOR 7
Page 24-3
Connector
INJ B
Fuse 56
15A
D
IGNITION
COIL 2
Page 20-3
Connector
D
IGNITION
COIL 4
Page 20-3
Connector
D
IGNITION
COIL 6
Page 20-3
Connector
D
IGNITION
COIL 8
Page 20-3
Connector
H
C108
Connector
PNK
0.5
PNK
0.8
PNK
0.8
PNK
0.8
PNK
0.8
PNK
0.8
PNK
0.5
FUEL
INJECTOR 2
Page 24-4
Connector
A
A
A
PNK
0.5
PNK
0.5
PNK
0.5
PNK
0.5
A
FUEL
INJECTOR 4
Page 24-4
Connector
FUEL
INJECTOR 6
Page 24-4
Connector
FUEL
INJECTOR 8
Page 24-4
Connector
BLK
0.8
F3
C1
G107
See Ground
Distribution,
page 14-2.
D12
C12
Circuit Schematic
10-7
POWER DISTRIBUTION
FUSE BLOCK-
UNDERHOOD
Connector
C
ORN
0.35
B6
LIFTGATE
MODULE
(LGM)
Pages 53
and 130-1
Connector
C1
HOT AT ALL TIMES
LGM/DSM
Fuse 6
10A
ORN
0.35
MEMORY
SEAT
MODULE
PASSENGER
Page 141-2
Connector
1
1
ORN
0.35
ORN
0.35
B
GARAGE
DOOR
OPENER
Page 157
Connector
VOICE
RECORDER
Page 158
Connector
A
C900
Connector
ORN
0.35
MEMORY
SEAT
MODULE
-DRIVER
Page 141
Connector
B
ORN
0.35
A6
C2
OH BATT/ONSTAR
Fuse 27
10A
E1
C3
ORN
0.35
16
VEHICLE
COMMUNICATION
INTERFACE
MODULE (VCIM)
Page 151
Connector
15
ORN
0.35
E4
C2
C1
B1
ORN
0.5
D1
C1
RADIO
Fuse 41
15A
RADIO
Pages 150,
150-4
Connector
ORN
0.35
HVAC
CONTROL
MODULE
-AUXILIARY
Pages 63-5,
65-8, 150-3
and 150-4
Connector
**A16
*A2
HVAC
CONTROL
MODULE
Pages 63
and 65
Connector
ORN
0.35
C1
C1
B7
C1
B4
C307
Connector
HVAC B
Fuse 36
10A
ORN
0.35
H
To H on
page 10-8.
* Air Conditioning: Manual
** Air Conditioning: Automatic
I/P BATT
Fuse 48
125A
RED
13
FUSE BLOCK-
REAR
Connector
D
C305
Connector
ORN
0.35
ORN
0.35
Circuit Schematic
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