Isuzu N-Series. Service manual — part 1070
CAB AND CHASSIS ELECTRICAL 8-385
J-234
J-235
J-236
J-237
L-2
L-2
P-1
P-2
No.
Connector Face
002-003
1
2
002-003
1
2
002-042
004-020
003-009
1 2 3
003-010
3 2 1
000-004
000-006
P-3
P-4
P-5
P-6
X-5,
14, 18,
26
X-19,
21
X-32
X-33
No.
Connector Face
000-006
000-004
000-002
000-002
005-006
005-003
1
2
3
5
4
004-004
1
2
3
4
014-002
1 2 3
7 8 9 10
11
4
12
5
13
6
14
8-386 CAB AND CHASSIS ELECTRICAL
H-5
H-6, H-7, H-8
Electronic Control Type PTO
General Description
This circuit consists of starter switch, PTO switch (for
dump vehicle, it shares with dump control switch), relay,
diodes, solenoid and control unit.
Electronic control type PTO is installed on the left side of
transmission.
PTO's gears are engaged at any time. There is a sleeve
installed on the output shift, and the sleeve is shifted by
the solenoid through the shift rods(s) and shift arm(s).
This causes turning the power on or off.
N-2
N-7
N-17
N-18
N-19
No.
Connector Face
001-020
001-020
008-005
1
2
3
4
5
6
7
8
006-007
1 2 3
4 5 6
010-003
10
9
8
7
6
5
4
3
2
1
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 8-387
Parts Location
B-67 STARTER SW
B-84 PTO SW
P-1
J-123, J-124 PTO CONTROL UNIT
J-125 PTO SOLENOID
J-126 PTO SOLENOID SW
P-2
P-3
P-4
J-9
B-51
PTO INDICATOR LAMP (METER)
RELAY BOX ASM
FL-1, FL-2
FUSIBLE LINK
BATTERY
P-5
RELAY BOX ASM (No.1)
X-12 HEATER & A/C RELAY
X-32, X-34 DIODE
FUSE
BOX ASM
F-16 FUSE
RELAY BOX ASM (No.2)
F-29~F-31 FUSE
X-14 PTO MAIN RELAY
X-15 PTO SOLENOID RELAY
X-16 PTO CUT RELAY
B-7
B-274
H6~H8
B-89 CLUTCH SW
N8A0526E
8-388 CAB AND CHASSIS ELECTRICAL
Circuit Diagram
40A
KEY
P-1
P-2
P-3
P-4
P-5
FRAME
H-7
1
B-67
2
2
FL-2
10A
PTO
F-31
100A/120A
MAIN
CHARGE
RELAY
HEATER
& A/C
RELAY
FL-1
B
ST
ACC
ON
STARTER SW
DIODE
PTO CUT
RELAY
CLUTCH
SWITCH
DIODE
PTO SOL
M/T RELAY
PTO
SWITCH
B-67
B-67
3
4
X-34
1
X-16
3
X-34
2
X-16
5
3.0W/L
3.0L
3.0
W/B
3.0
B/Y
3.0
B/Y
0.5
B/Y
0.5W/B
3.0B/Y
0.5
B/W
0.5
L/R
0.5
R/Y
0.3
W
0.3
W
0.3
B
0.5
Y
0.5Y
0.5Y
0.3
B
0.85
P
0.85
Y
0.85
B
0.85W/G
0.85
B
0.5B
0.5
V/W
0.5
R/Y
1.25
W/L
0.85
G/O
0.5
L
10A
PTO
F-30
10A
METER
F-16
20A
PTO
F-29
X-16
1
X-16
2
X-16
4
X-12
1
X-12
2
X-12
5
X-12
4
X-15
5
X-15
2
X-15
3
X-15
1
B-89
1
B-89
4
H-8
2
B-51
5
J-126
1
J-126
2
B-51
8
H-6
2
X-14
0.85L
3.0B/Y
2
X-32
1
X-32
X-34
3
3
X-14
DIODE
PTO MAIN
RELAY
PTO SOL.
SWITCH
METER
PTO
3
X-32
4
X-32
B-84
4
B-84
B-7
1
J-9
B-274
H-8
1
J-123
2
J-124
5
1
X-14
5
X-14
J-123
1
J-125
3
J-125
2
J-124
4
J-124
3
J-125
1
FRAME
FRAME
H/L BRACKET
PTO SOL.
CONT UNIT
PTO
2.0
L
0.5
B
N8A0516E
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