Isuzu N-Series. Service manual — part 648
6E-14 Engine Control System (4HK1)
CKP and CMP Sensors
E
-111
ECM
ECM
0.5
BLU/
WHT
0.5
BLU/
BLK
0.5
BLK
0.5
BLK
0.5
BLK
0.5BLK
E
-111
2
E-1
12
100
1
E-1
12
3
98
99
0.5
ORN
107
2
E-98
106
108
CKP
sensor
low
signal
1
E-98
0.5
YEL
CKP
sensor
high
signal
12V reference
CMP
sensor
signal
Shield ground
Shield ground
N6A6634E
0.5
BLK
0.5
BLK
FRP
Sensor
Boost
Pressure
Sensor
CMP
Sensor
CKP
Sensor
Engine Control System (4HK1) 6E-15
Injectors
121
1
1
1
2
2
WHT
ECM
ECM
11
6
2
RED
2
WHT
0.75
WHT
0.75
GRN
0.75
GRN/
WHT
0.75 WHT
Cylinder #1
Fuel
Injector
Cylinder #4
Fuel
Injector
Cylinder #3
Fuel
Injector
Cylinder #2
Fuel
Injector
4
4
2
1
2
WHT
0.75
WHT
0.75
BLK
0.75
WHT/
YEL
3
3
1
33
3
2
2
RED
0.75
RED
0.75
YEL
0.75
BLK/
BLU
0.75 RED
2
2
H-125
H-126
2
3
E-138
E-141
E-140
E-139
11
8
1
E-141
E-138
E-140
E-139
2
RED
0.75
RED
0.75
BLU
0.75
BLK
6
6
H-126
H-125
120
7
7
11
7
8
8
11
9
5
5
Cylinder #1
fuel
injector
control
Cylinder #4
fuel
injector
control
Cylinder #3
fuel
injector
control
Cylinder #2
fuel
injector
control
Charge voltage
(Common 1)
Charge voltage
(Common 2)
N6A6638E
6E-16 Engine Control System (4HK1)
Glow Control System, A/C Control System, PTO Switch
0.5
PNK
0.5
GRN/
ORN
ECM
0.85
GRN/
ORN
0.5
BLU/
ORN
0.5
BLU/
ORN
0.85GRN/ORN
Refrigerator
Compressor
J-6
0.85
GRN/
WHT
0.85
GRN/
WHT
Thermo A/C
Relay
2
H-5
9
H-105
8
H-4
1
1
J-7
J-6
2
E-5
1
1
J-191
34
44
33
0.75
WHT/
RED
A/C
Pressure
Switch
A/C
Compressor
1
H-120
Glow
Plug
3
BLK/
YEL
3
BLK/
YEL
3
BLK/
BLU
F-9
ENG. (IG)
10A
0.5
BLK/
RED
0.5
YEL/
BLK
0.5 YEL/BLK
0.5
YEL/
BLU
E-3
Ignition Switch
5
2
4
X-20
X-20
3
H-5
18
10
B-84
B-84
1
2
PT
O
Switch
A/C
signal
Refrigerator
switch
signal
Glow plug
relay
control
SBF-3
GLOW
60A
Fuse &
Relay Box
(Glove Box)
Fuse &
Relay Box
(Behind the Cab)
Fuse &
Relay Box
(Behind the Cab)
PTO
switch
signal
0.5
BLK
1.25
BLK
B-1
Frame
W/S-C
+B
N6A6639E
ECM
Glow
Relay
Engine Control System (4HK1) 6E-17
Clutch Switch, Neutral Switch, Exhaust Brake Switch, Engine Warm Up Switch, Exhaust Brake Solenoid
Valve, Intake Throttle Solenoid Valve
F-28
ECM
10A
Fuse &
Relay Box
(Glove Box)
Fuse &
Relay Box
(Behind the Cab)
6
45
H-5
17
H-4
0.5
LT GRN/
RED
0.5
BRN/
BLK
0.5
LT GRN/
RED
2
102
H-105
0.5
LT GRN/
WHT
50
Neutral
Switch
0.5
LT GRN
0.5
LT GRN
0.5
LT GRN
0.5
LT GRN/
WHT
0.85
LT GRN
0.5
BLK/
BLU
15
J-191
E-111
0.5
BLK
ECM
Intake
throttle
solenoid
valve
control
Exhaust
brake
solenoid
valve
control
Neutral
switch
signal
Exhaust
brake
switch
signal
F-9
ENG. (IG)
10A
0.5
YEL/
BLU
0.5
BRN/
YEL
Clutch
Switch
0.5
BRN/
YEL
Ignition Switch
47
Clutch
switch
signal
1
2
5
4
J/C-2
2
1
J-40
J-40
2
1
J-31
J-31
1
2
J-50
J-50
2
5
B-69
B-69
2
1
B-89
B-89
Intake
Throttle
Solenoid
Valve
Exhaust
Brake
Solenoid
Valve
N6A6640E
TCM
0.5
L
T
GRN/
BLU
0.5
BLK
3
BLK
0.5
BLK
1.25
BLK
0.5
L
T
GRN
/BLU
0.5
L
T
GRN
/BLU
0.5
BRN/
BLK
0.85
L
T
GRN/
RED
0.85
L
T
GRN/
RED
0.5
L
T
GRN/
RED
0.5
L
T
GRN/
BLU
B-1
Frame
B-7
H/L
Bracket
F-2
FUEL
HEA
TER
10A
Heater Relay
F-7
T
AIL
LIGHT
10A
T
ail Relay
5
Engine
W
arm up
Switch
2
6
3
41
B-31
B-31
7
51
H-4
Engine
warm up
switch
signal
W/S-F
W/S-C
4
9
J/C-D
11
5
J/C-B
Exhaust
Brake
Switch
(Combination
Switch)
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