Isuzu N-Series. Service manual — part 1168
8-384 CAB AND CHASSIS ELECTRICAL
Circuit Diagram
8B
8W/B
5W/B
3R
3R
ACG(B)
5W/B
3B/Y
0.5B/Y
0.3W/V
0.3W/L
0.5G
3W/L
100A/120A
3
4
2
ABS (IG)
TAIL
LIGHT
H-8
12
H-15
15
H-15
16
J-191
37
J-191
18
J-191
38
J-191
52
H-4
20
H-4
9
B-79
B-1
12
B-79
5
0.3W/G
H-8
13
H-15
11
H-15
6
B-79
2
B-79
1
B-79
4
B-79
7
0.3W/B
3B
3B
0.3W/G
0.3W/B
3B
3B
0.3W/B
0.3W/G
0.5B
0.5Y
0.5B
H-8
8
B-431
1
0.5L
H-8
7
B-431
2
0.5L/W
0.5L
0.5L/W
RESISTOR 1
H-8
6
B-387
1
0.5L
H-8
5
B-387
2
0.5L/W
0.5L
0.5L/W
RESISTOR 2
DATA LINK CONNECTOR
1.25B
FRAME-LH (FRONT)
B-7
3B
HEADLIGHT BRACKET (LH)
J-9
FRAME-LH (CENTER)
0.5L
0.5L/W
0.5SB
0.5SB
3B
0.5Y
CAN
L
CAN
H
CC-
KW2000
IS-
DIAG
ECM
N5A2073E
CAB AND CHASSIS ELECTRICAL 8-385
Connector List
No.
Connector Face
B-1
B-7
B-51
B-66
B-67
B-67
B-79
B-125
000-001
000-012
020-004
002-031
1
2
004-002
2
4
1
3
004-001
1
2
3
4
016-005
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9
008-001
1
5
2
6
3
7
4
8
B-387
B-387
B-431
B-431
H-4
H-4
H-14
H-14
No.
Connector Face
002-038
002-039
002-038
002-039
020-002
10 11 12 13 14 15
1 2 3 4 5
17 18 19 20
6 7 8 9
16
020-003
9 8 7 6
20 19 18 17 16
5
14
15
4
13
3
12
2
11
1
10
016-004
4
3
2
1
9
8
7
6
5
13 12 11 10
16
15
14
016-003
1
2
3
4
5
6
7
8
9
11 12 13 14
15
16
10
8-386 CAB AND CHASSIS ELECTRICAL
H-15
H-15
J-9
J-74
J-74
J-75
J-75
J-148
No.
Connector Face
016-003
1
2
3
4
5
6
7
8
9
11 12 13 14
15
16
10
016-004
4
3
2
1
9
8
7
6
5
13 12 11 10
16
15
14
000-001
002-012
1
2
002-011
1
2
002-012
1
2
002-011
1
2
002-012
1
2
J-148
J-149
J-149
J-177
J-177
J-191
P-1
P-2
No.
Connector Face
002-011
1
2
002-012
1
2
002-011
1
2
034-001
034-002
000-004
000-006
CAB AND CHASSIS ELECTRICAL 8-387
H-5
H-6, H-7, H-8
HSA (Hill Start Aid) System
General Description
The HSA (hill start aid) is the system to retain the brake
force with brake pedal not depressed when the vehicle
is parked, and to automatically release the brake force
when starting the vehicle.
The HSA control unit drives the HSA valve located in the
pipe route between the master cylinder and the wheel
cylinder, to hold/release the brake fluid pressure. Also,
alarm function (activates when the door opened with
HSA operating, when the HSA system has running long
time, when the HSA pressure goes down) and self-diag-
nosis function are equipped with the HSA control unit.
P-3
P-4
P-5
X-4
No.
Connector Face
000-006
000-004
000-002
005-006
N5A2011E
1
2
1
2
1 2 3 4
5 6 7 8
9 10 11 12 13
14 15 16 17 18
2
1
2
1
4 3 2 1
8 7 6 5
13 12 11 10 9
18 17 16 15 14
H - 6
H - 7
H - 8
N8A5489E
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