Isuzu N-Series. Service manual — part 1067
CAB AND CHASSIS ELECTRICAL 8-373
TCM
4
B-426
0.5
BLK
2
BLK
12
0.5
BLK
17
1.25
BLK
8
2
12
1
13
Diagnostic
request
(SRS)
Diagnostic
request
(ECM)
Diagnostic
request
(EHCU)
Class 2 Serial
Communication
Ground
Ground
5
B-79
4
18
B-428
11
Diagnostic
request
switch
Diagnostic
request
1.25
BLK
1.25
BLK
0.3
BLK/
WHT
0.5
BLK
0.5
BLK
0.3
WHT/
BLK
0.3
WHT/
GRN
0.5
YEL
0.5
GR
Y
0.5L
T
BLU
DLC
9
B-426
7
Keyword 2000
Keyword serial
communication
0.3
L
T
BLU
0.5
L
T
BLU
EHCU (ABS Module)
EHCU (ABS Module)
ECM
SRS C/U
ECM
B-1
Frame
W/S-D
18
21
22
J/C-B
W/S-C
Signal ground
Signal ground
Power ground
Power ground
N7A2133E
8-374 CAB AND CHASSIS ELECTRICAL
0.5
YEL/
BLK
0.5
1(LHD)
3(RHD)
3(LHD)
5(RHD)
RED/
YEL
0.5
YEL/
BLK
0.5
RED/
YEL
0.5
YEL/
BLK
0.5
RED/
YEL
0.5
YEL/
RED
0.5
BLU/
WHT
0.5
BLU/
WHT
0.5
YEL/
RED
0.5
BLU/
WHT
0.5
YEL/
RED
30
29
6
12
B-427
B-425
31
2
4
J-237
J-237
TCM
Oil Pump
ASM
T
ransmission
fluid
temperature
sensor
Lock up clutch
solenoid valve
Gearshift clutch
solenoid valve
5
6
H-4
H-17
6
14
H-119
H-118
73
Low reference
TCM
H-4
B-427
TFT
sensor
signal
5V reference
Gearshift clutch
solenoid valve
control
+B
Lock up clutch
solenoid valve
control
+B
N7A2134E
CAB AND CHASSIS ELECTRICAL 8-375
0.5
YEL/
WHT
TCM
33
H-5
11
10
B-426
10
4
B-427
29
23
H-5
0.5
YEL/
WHT
11
H-1
19
0.5
YEL/
WHT
0.5
YEL/
BLK
32
0.5
YEL/
BLK
7
0.5
YEL/
BLK
Low reference
0.5
WHT
10
H-8
19
18
0.5
WHT
3
H-1
19
0.5
WHT
0.5
RED
0.5
WHT/
BLU
0.5
ORN/
BLU
0.5
WHT/
BLU
0.5
ORN/
BLU
8
12
H-1
19
0.5
WHT/
BLU
0.5
ORN/
BLU
9
0.5
RED
2
0.5
RED
T
urbine
Speed
Sensor
Low reference
5V reference
Input shaft
speed sensor
signal
TCM
13
B-426
0.5
YEL/
RED
15
H-1
19
0.5
YEL/
RED
27
H-5
0.5
YEL/
RED
20
H-8
0.5
BLK
6
0.5
BLK
11
0.5
BLK
1
2
J-232
5V reference
T
urbine
speed sensor
signal
5V reference
Gear select
position sensor
signal
5V reference
Gear select
position sensor
signal
11
5
26
20
H-5
0.5
YEL
0.5
BRN
0.5
YEL
0.5
BRN
0.5
YEL
0.5
BRN
5
2
H-1
18
Input
Shaft
Speed
Sensor
1
2
J-139
2
1
J-223
3
J-223
Gear Select
Position
Sensor
Gear Shift
Position
Sensor
2
1
J-142
3
J-142
Low reference
Low reference
N7A2135E
8-376 CAB AND CHASSIS ELECTRICAL
F-5
10A
F-17
NEES (IG)
10A
F-16
10A
F-18
10A
0.5
BLK/
ORN
0.5
BLK/
ORN
0.5
BLK/
ORN
0.3
GRY/
BLU
0.3
GRY/
RED
0.3
GRY/
BLK
0.5
GRN
0.5
GRN
0.5
GRN/
YEL
0.5GRN
Stop Light
11
H-5
3
B-428
2
9
17
Fuse & Relay Box
(Glove Box)
ST
OP
LIGHT
METER
SRS
TCM
J/C-2
Brake
Pedal
Switch
2
1
B-66
B-66
Neutral
Switch
1
2
J-50
J-50
F-28
ECM
10A
0.5
LT GRN
0.5
LT GRN
ECM
Exhaust
Brake
Solenoid V
alve
0.5
BLK/
BLU
0.5
BLK/
BLU
37
H-5
10
0.5B/L
2
6
4
1
Neutral
switch
signal
Reset
switch
signal
Slow
switch
signal
Fast
switch
signal
Brake
pedal
switch
Reset
Switch
6
4
B-105
B-105
Half-clutch
Adjustment
Switch
3
B-106
1
2
B-106
J/C-G
5
4
6
TCM
0.3
2
BLK
0.5
BLK
3
BLK
1.25
BLK
B-7
Headlight
Bracket
Tail
Light
BLU/
WHT
2
BLK
2
BLK
0.5GRY/RED
1.25
GRY/
BLK
0.5
GRY/
RED
0.5
GRY/
RED
12
5
7
1
1
6
H-12
19
B-428
3
H-3
B-1
Frame
Room Lamp
TCM
PTO
switch
signal
Door
switch
signal
Ignition
voltage
W/S-B
J/C-D
J/C-H
W/S-D
W/S-C
2
3
Door Switch
(Left)
1
N-7
Door Switch
(Right)
1
N-2
PT
O
Switch
1
2
3
B-417
B-417
4
Ignition
voltage
N7A2136E
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