Isuzu N-Series. Service manual — part 1059
CAB AND CHASSIS ELECTRICAL 8-341
E-5
E-5
H-14
H-14
H-105
H-105
J-6
J-9
No.
Connector Face
001-013
1
001-014
1
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
012-001
1
2
3
4
5
6
7
8
9
10 11 12
012-002
4
8
12
3
7
11
2
6
10
1
5
9
004-011
1
3
2
4
000-001
J-41
P-1
P-4
P-2
P-3
P-5
J-23
No.
Connector Face
002-015
1
2
000-004
000-004
000-006
000-006
000-002
001-009
1
8-342 CAB AND CHASSIS ELECTRICAL
H-5
H-6
Fuel Heater and Rear Heater
General Description
The circuit consists of fuel heater, rear heater, rear heat-
er switch and the exhaust brake relay.
The fuel heater circuit is always in “ON” position when
the generator is charging and its temperature is auto-
matically controlled by the circuit breaker built in the fuel
heater.
1
2
3
7
8
9
13
14 15
19
20 21
25
26 27
31
32 33
34
35
36
37
4
5
6
10
11 12
16
17 18
22
23 24
28
29 30
38
39 40
6
5
4
12
11 10
18
17 16
24
23 22
30
29 28
40
39 38
3
2
1
9
8
7
15
14 13
21
20 19
27
26 25
33
32 31
34
35
36
37
N8A5488E
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
CAB AND CHASSIS ELECTRICAL 8-343
Parts Location
F-2, F-3
X-13 HEATER RELAY (12V, 4JH1)
RELAY BOX ASM (No.1)
X-8 EXHAUST BRAKE RELAY
(4JB1 / 4HF1 / 4HG1 4HE1 ENGINE)
N8A0369E
8-344 CAB AND CHASSIS ELECTRICAL
Circuit Diagram
Except 4JH1 Engine
2L
B-7
H-25
H-3
B-59
B-59
N-8
N-8
1
J-52
B-1
J-9
H-6
X-8
H-5
P-1
P-2
P-5
2
X-8
1
2
X-8
X-8
4
5
6
J-52
2
N-8
H-25
3
2
H-3
5
2
B-59
4
1
2
FRAME
30B/R
8
B
FL-1 100A
MAIN
8W
5W
8W/B
3W/B
RELAY; CHARGE(5)
0.85W/R
RELAY; EXHAUST
BRAKE
3B/R
F-2
15A
EXH. BRAKE,
FUEL HEATER
F-3
15A
REAR HEATER
0.5B/R
0.5B/R
0.5B
FUEL HEATER
0.5B/R
REAR HEATER
0.5B
0.85L/R
0.5L/R
0.5L/W
0
.85L/W
H I
LO
OFF
REAR HEATER
SW
3B
5B
0.5B
2B
0.85L/R
0.85L/W
0.85B/R
1
2
3
0.5W/R
H-25
H-3
0.5B/R
1
6
2B
3B
HEADLIGHT BRACKET (LH)
FRAME-LH(FRONT)
FRAME-LH (CENTER)
N8A0370E
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