FOLDOUT 16
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE
Jser code Service code Abnormal system Nature of abnormality
Condition
when normal (voltage, current, resistance)
Action by controller when abnormality is detected
Problem that
appears
on
machine when there is abnormality
I.
Short circuit in wiring harness between
EOI (5) - (16), (5) - (17), (16) - (17)
2. Short circuit in wiring harness between
E04 (I) - (2), (I) - (3), (2) - (3) EOI (female) E06 (male) Resistance value
3. Short circuit in wiring harness between
E06 (I) - (2), (1) - (3), (2) - (3)
(5) - (7)
(I) - (2)
0.25 - 7kR
I. Does
not become partial speed when set at
4. Short circuit in wiring harness between
high idling position
E3:08
Abnormality in fuel
EOI (5) - (7). (7) - (16)
(7) - (16)
(2) - (3)
0.25 - 7kR
Maintains engine speed at position
Of fuel COntrOl
2. Does not reach high
idling when set at partial
control dial input value
5. Disconnection in wiring harness between
dial immediately before abnormality occurred
EOI (5) - X07 (6) - E06 (I)
(5)-(16) -
speed
2-3kQ
3. There are cases of hunting
6. Disconnection in wiring harness between
(I) - (3)
4-6kQ
4. Lacks output (max. speed of engine is too low)
-
EOI (7) - X07 (5) - E06 (2)
7. Disconnection in wiring harness between
Betweeneach
pin and chassis
-
Min. 1 MR
EOI (16) -X07 (4) - E06 (3)
8. Defective fuel control dial
9. Defective contact of EOI, X07, E06 connectors
E
:
05
E3:17
E05 (male)
EOI (female)
Resistance value
1. Disconnection inside governor motor (l)-(2) (IO) - (20)
2.5 - 7Q
2. Disconnection in wiring harness between
I. When there is a disconnection in both the A
EOI (10) - HO2 (4) - E05 (1)
(3) - (4)
(II)-(21)
2.5 - 7R
phase and 8 phase at the same time, the
Abnormality
3. Disconnection in wiring harness between
problem is the same as for a short circuit in the
(disconnection) in
EOI (I 1) - HO2 (7) - E05 (3)
4. Disconnection in wiring harness between
(I) - (3)
(IO) - (II)
Min. 1 MR
governor motor system
governor motor drive
Takes no particular action
2. When there is a disconnection in only one of A
system
EOI (20) - HO2 (5) - E05 (2)
phase or B phase
5. Disconnection in wiring harness between
(I) - (4)
(IO) - (21)
Min. 1 MQ
1) Engine does not stop
EOI (21)
-
HO2 (8) - E05 (4)
Between pins (IO),
2) Stops moving at position immediately before
6. Defective contact of EOI, H02, E05 connectors
~~~~nn$~~~$i~2)’ (ll), (20) (21) and
Min. 1 MR
failure, so engine speed cannot be controlled
chassis
3) There are cases of hunting
Motor drive current
:
Hold
:
0.7 A
Start
:
0.84 A
E05 (male) EOI (female)
Resistance value
(I) - (2) (IO) - (20)
2.5 - 7R
1. Short circuit inside governor motor
(3) - (4)
(II)-(21)
2.5 - 7R
1. If during operation
2. Wiring harness between EOI (IO) - HO2 (4) - E05
1) Set to low idling
Abnormality (short
(I) short circuiting with wiring harness between
2) Engine does not stop
E3:18
circuit) in governor
EOI (20) - HO2 (5) - E05 (2)
(l)-(3)
(10) -(II)
Min. I MR
3) There are cases of hunting
motor drive system
3. Wiring harness between EOI (I I) - HO2 (7) - E05
Sets motor drive current to 0
2. When stopped
(3) short circuiting with wiring harness between
(I) - (4)
(IO) - (21) Min. 1 MR
I) Engine starts, but stays at low idling
EOI (21)
-
HO2 (8) - E05 (4)
2) Engine does not stop after starting
4. Wiring harness in Items 2 and 3 short circuiting Between pins (I), (2), Between Pins (1%
3) There are cases of hunting
with ground
(3), (4) and chassis
$JJ!$?so)’ (*I) and
Min. 1 MR
Motor drive current
:
Hold
:
0.7 A
Start
:
0.84 A
E3:Ol
I. When monitor panel and pump controller
I. When monitor panel and pump controller
1. %;ntcrcuit, disconnection in network wiring
cannot receive signal
Abnormality in network
1) Working mode: H/O
cannot receive signal
reception system
1) Even when working mode is switched,
2.Abnormality in pump controller
2) Automatic warming-up: ON
3.Abnormality in engine throttle controller.
3) Overheat signal: OFF
engine speed does not change
2. Same as normal when only pump controller
p
2. Same as normal when only pump controller
cannot receive signal
cannot receive signal
20415
0
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