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20-0
IGNITION SYSTEM: 4.2L
PNK
0.5
PNK
0.5
HOT IN RUN AND START
PCM 1
Fuse 28
15A
FUSE
BLOCK-
UNDER-
HOOD
Connector
44
Ignition
coil 1
control
C5
E5
C1
42
Ignition
coil 2
control
35
C2
Ignition
coil 3
control
IGNITION
COIL 2
Connector
P1
E10
C1
BLK
0.8
BLK
0.8
B
From B
on page
20-1
C
B
A
IGNITION
COIL 1
Connector
P1
F10
C1
BLK
0.8
BLK
0.8
A
From A
on page
20-1
C
B
A
IGNITION
COIL 3
Connector
P1
D10
C1
BLK
0.8
BLK
0.8
C
From C
on page
20-1
C
B
A
FUSE
BLOCK–
UNDER-
HOOD
Connector
RED/WHT
0.35
LT BLU
0.35
BLK
0.8
G109
C10
C1
PNK
0.5
D5
PNK
0.5
PPL
0.35
PNK
0.5
PNK
0.5
POWER-
TRAIN
CONTROL
MODULE
(PCM)
Connector
Circuit Schematic
20-1
IGNITION SYSTEM: 4.2L
PNK
0.5
41
Ignition
coil 4
control
40
Ignition
coil 5
control
34
C2
Ignition
coil 6
control
IGNITION
COIL 5
Connector
P1
BLK
0.8
A
C
B
A
IGNITION
COIL 4
Connector
P1
BLK
0.8
B
To B
on page
20
C
B
A
IGNITION
COIL 6
Connector
P1
BLK
0.8
C
C
B
A
PNK
0.5
PNK
0.5
DK GRN/WHT
0.35
DK GRN
0.35
LT BLU/WHT
0.35
49
C1
Engine
speed
signal
(TACH)
WHT
0.35
Gauges
To A
on page
20
To C
on page
20
POWER-
TRAIN
CONTROL
MODULE
(PCM)
Connector
Circuit Schematic
20-2
IGNITION SYSTEM: 5.3L
PNK
0.35
IC 5
control
IC 3
control
Low
reference
D
IGNITION
COIL 7
Connector
C
D
PNK
0.35
27
IC 7
control
POWER-
TRAIN
CONTROL
MODULE
(PCM)
Connector
IGNITION
COIL 5
Connector
IGNITION
COIL 3
Connector
IGNITION
COIL 1
Connector
HOT IN RUN AND START
INJ A
Fuse 55
15A
D
PNK
0.35
D
PNK
0.35
D12
PNK
0.35
C109
Connector
H
FUSE
BLOCK–
UNDERHOOD
Connector
See Power
Distribution,
Page 10-6.
PNK
0.35
PNK
0.35
RED
0.8
B
RED
0.8
BRN
0.8
BLK
0.8
C
68
BRN
0.8
BLK
0.8
C
F
LT BLU
0.8
BRN
0.8
BLK
0.8
C
G
BRN
0.8
BLK
0.8
C
A
BLK
0.8
G109
BLK
0.8
Gauges
E
C109
BRN
0.8
C2
LT BLU
0.8
PPL
0.8
DK GRN
0.8
DK GRN
0.8
IC 1
control
Engine
speed
signal
BRN
0.8
PPL
0.8
C1
WHT
0.35
BLK
0.8
B
A
B
A
B
A
B
A
69
26
10
60
See Ground
Distribution,
page 14-4.
Circuit Schematic
20-3
IGNITION SYSTEM: 5.3L
BRN
0.8
PNK
0.8
IC 4
control
28
IC 6
control
Low
reference
D
IGNITION
COIL 2
Connector
C
B
D
PNK
0.8
67
IC 2
control
POWER-
TRAIN
CONTROL
MODULE
(PCM)
Connector
IGNITION
COIL 4
Connector
IGNITION
COIL 6
Connector
IGNITION
COIL 8
Connector
HOT IN RUN AND START
INJ B
Fuse 56
15A
D
PNK
0.8
D
PNK
0.8
C12
PNK
0.35
C108
Connector
H
FUSE
BLOCK–
UNDERHOOD
Connector
See Power
Distribution,
Page 10-6.
PNK
0.35
PNK
0.35
A
B
RED/
WHT
0.8
BLK
0.8
C
B
29
A
BLK
0.8
C
B
A
F
LT BLU/
WHT
0.8
BLK
0.8
66
C
B
A
G
BLK
0.8
C
A
BLK
0.8
G109
BLK
0.8
E
C108
Connector
BRN
0.8
61
C2
DK GRN
0.8
DK GRN/
WHT
0.8
IC 8
control
RED
0.8
LT BLU
0.8
PPL
0.8
PPL/WHT
0.8
BRN
0.8
BRN
0.8
BRN
0.8
BRN/
WHT
0.8
C1
See Ground
Distribution,
page 14-4.
BLK
0.8
Circuit Schematic
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