Ecm/Vim Circuit Diagram - Isuzu 4HL1 Workshop Manual

1A-22 Engine Control System

ECM/VIM Circuit Diagram (1/5)

SBF-1 80A/100A
MAIN
SBF-2 50A
KEY
1
3 W/L 3 W/L
H-7
SBF-3 60A
GLOW
SBF-5 50A
ECM
2
3 W/G
H-7
F-25
ENG.CONT
2L
+
P-1
3
P-2
X-18
+
P-3
X-18
5
P-4
0.5
B
Frame
0.5
L/Y
0.5
L/Y
117
J-191
3
B
J-9
Left Side Frame
(Center)
Right Frame (Front) B-274
5 W/B
H-6
OFF
ACC
2 ON 3
B
B-67 B-67
ST
4
B-67
Starter Switch
0.3
B/O
3 W/G
3
W/G
30A
0.3
2
W/G
9
3 0.85
B/L B/O
H-4
2
W/G
1
X-18
1.25
W/R
X-18
2
3
W/R
3 0.5
B/L W/R
2 4
X-22 X-22
X-22 X-22
3 5
3
B/G 2
H-105
3 0.5
B/G W/G
1.25
Glow Plug E-3
W/R
0.5
L/Y
118 98
J-191 J-191
3 B
1
5 W/B
3B/Y
3B/W
0.5
B/O
1
B-89
1
B-355
B-354
1
B-89
2
P
0.5
W/L
0.5
LG/L
10 49 49
B-352 B-352 B-352
B-349 B-349 B-349 B-349 B-352
38 76 75 36 2
1.25 1.25 0.85 0.5
W/R W/R B/O LG/B
8 6 7 19
H-4 H-4 H-4 H-4
0.5
LG/B
2
J-31
0.85
B/O
J-31
8
1
H-5
1.25 1.25 0.75 0.5
W/R W/R B/O B/O
0.75
B/O
114 115 116 109
J-191 J-191 J-191 J-191
ECM
3 W/B
F-16 15A
ENG. CONT
PTO Cut Relay
0.5 B-216 (4)
B/O
0.5
0.5
R/Y
B/O
2 1
B-89 B-89
Clutch PTO Switch
B-89 B-89
3 4
0.5
0.5
G/O
B/O
0.5
B/O
49
B-352
VIM
B-350 B-350 B-350 B-350
65 26 27 24
0.5
B
0.5
LB
0.5 0.5
R W
4 13 12 8 1
H-4 H-4 H-4 H-8 H-8
0.5 0.5 0.5
R W GR/W
97 89 88 112
J-191 J-191 J-191 J-191
1.25 B
A
C
B
PTO Solenoid M/T Relay
B-64 (3)
B-352
9
0.5 LB
0.5 GR/W
0.5 B
0.5 B
0.5 L
Diagnostic Connector
B-79
0.85
B
8
6
B-274
Joint Connector
LNW21AXF002701-X