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23-2
ENGINE CONTROLS: 4.2L
C1
HOT AT ALL TIMES
PCM B
Fuse 20
20A
FUSE
BLOCK –
UNDERHOOD
Connector
C3
F3
48
FUEL
PUMP
FUEL
PUMP
AND
SENDER
ASSEMBLY
Connector
Starter
enable
relay
control
C
B
8
Low
reference
M
F/PMP
RELAY 41
C1
F3
A11
FUEL
LEVEL
SENSOR
Full
250 OHMS
Empty
40 OHMS
A
D
3
22
Fuel
level
sensor
signal
C2
DK GRN/WHT
0.35
BLK
0.8
GRY
0.8
BLK
0.8
PPL
0.8
ORN/BLK
0.8
YEL/BLK
0.35
Fuel
pump
relay
control
Starting
System
DK GRN/WHT
0.35
PPL
0.8
ORN/BLK
0.8
C12
D1
C101
Connector
G305
G107
POWER-
TRAIN
CONTROL
MODULE
(PCM)
Connector
See Ground
Distribution,
page 14-2.
BLK
0.8
See Ground
Distribution,
page 14-7.
See Power
Distribution,
page 10-3.
Circuit Schematic
23-3
ENGINE CONTROLS: 4.2L
PNK/BLK
0.5
LT GRN/BLK
0.5
BLK
0.5
PNK
0.5
PNK
0.5
PNK
0.5
PNK
0.5
PNK
0.5
Fuel
injector 6
control
PCM 1
Fuse 28
15A
HOT IN RUN AND START
FUSE
BLOCK –
UNDERHOOD
Connector
C1
F5
A
FUEL
INJECTOR
6
Connector
B
Fuel
injector 5
control
A
FUEL
INJECTOR
5
Connector
B
Fuel
injector 4
control
A
FUEL
INJECTOR
4
Connector
B
Fuel
injector 3
control
A
FUEL
INJECTOR
3
Connector
B
H
Fuel
injector 2
control
A
FUEL
INJECTOR
2
Connector
B
G
14
Fuel
injector 1
control
A
FUEL
INJECTOR
1
Connector
B
F
A
C104
Connector
PNK
0.5
PNK
0.5
PNK
0.5
PNK
0.5
BLK
0.5
YEL/BLK
0.5
BLK/WHT
0.5
LT BLU/BLK
0.5
C2
6
7
8
16
15
D
C104
Connector
C
B
PNK/BLK
0.5
LT GRN/BLK
0.5
YEL/BLK
0.5
BLK/WHT
0.5
LT BLU/BLK
0.5
POWERTRAIN
CONTROL
MODULE
(PCM)
Connector
See Power
Distribution,
page 10-17.
See Power
Distribution,
page 10-17.
Circuit Schematic
23-4
ENGINE CONTROLS: 4.2L
ORN/BLK
0.35
BLK
0.35
BLK
0.35
PPL
0.35
BRN
0.35
C2
C1
63
58
54
Low
reference B
C2
64
5V
reference 2
16
C3
59
10
C1
11
55
C3
3
49
GRY
0.35
LT BLU/BLK
0.35
GRY
0.35
WHT/BLK
0.35
TAN
0.35
ACCELERATOR
PEDAL
POSITION
(APP)
SENSOR
Connector
G
J
K
D
THROTTLE
BODY
Connector
ENGINE
COOLANT
TEMPERATURE
(ECT)
SENSOR
Connector
B
MANIFOLD
ABSOLUTE
PRESSURE
(MAP)
SENSOR
Connector
A
C
C
G
H
B
BLK/WHT
0.35
POWERTRAIN
CONTROL
MODULE
(PCM)
Connector
POWERTRAIN
CONTROL
MODULE
(PCM)
Connector
5V
reference 1
Circuit Schematic
23-5
ENGINE CONTROLS: 4.2L
8
INTAKE AIR
TEMPERATURE
(IAT)
SENSOR
Connector
B
12
62
A/C
REFRIGERANT
PRESSURE
SENSOR
Connector
FUEL PUMP
& SENDER
ASSEMBLY
Connector
D
FUEL TANK
PRESSURE
(FTP)
SENSOR
Connector
A
C
1
2
5V
reference 1
14
C1
13
C1
54
POWERTRAIN
CONTROL
MODULE
(PCM)
Connector
POWERTRAIN
CONTROL
MODULE
(PCM)
Connector
GRY
0.35
GRY
0.35
BLK
0.35
BLK
0.35
ORN/BLK
0.8
BLK
0.35
GRY
0.35
GRY
0.35
BLK
0.35
BLK
0.35
ORN/BLK
0.8
BLK
0.35
C12
C101
Connector
J
C100
Connector
C11
C101
Connector
E
C100
Connector
F
C100
Connector
C10
C101
Connector
Low
reference B
60
60
COOLING
FAN
Connector
C
E
GRY
0.35
GRY
0.35
E
C108
Connector
C3
C
C100
Connector
GRY
0.35
A
C105
Connector
GRY
0.35
C
GRY
0.35
GRY
0.35
C
C105
Connector
GRY
0.35
C108
Connector
Circuit Schematic
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