ACTION TAKEN BY CONTROLLER AND CONDITION
OF MACHINE WHEN ERROR CODE IS DISPLAYED
12-208
140-3 SERIES
TROUBLESHOOTING
ACTION TAKEN BY CONTROLLER AND CONDITION OF
MACHINE WHEN ERROR CODE IS DISPLAYED
Error
code
System with
abnormality
Nature of abnormality
E-1b
Abnormality in
NE revolution
sensor system
1. Defective contact, disconnection, short circuit, or short circuit with ground in wiring harness inside NE rev-
olution sensor
2. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1 (5)
(+) and NE revolution sensor SNE (1)
3. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1
(12) (–) and NE revolution sensor SNE (2)
4. Defective engine controller
E-1C
Abnormality in
G revolution
sensor system
1. Defective contact, disconnection, short circuit, or short circuit with ground in wiring harness inside G revo-
lution sensor
2. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN2 (1)
(+) and G revolution sensor SG (1)
3. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN2 (9)
(–) and G revolution sensor SG (2)
4. Defective engine controller
E-20
Abnormality in
model
selection
system
1. Defective model selection connector
2. Defective contact, or disconnection in wiring harness between controller CN4 (13) and model selection
connector MSC (1)
3. Short circuit with ground in wiring harness between controller CN4 (14) and model selection connector
MSC (2)
4. Defective contact, or disconnection in wiring harness between controller CN4 (15) and model selection
connector MSC (3)
5. Defective engine controller
E-22 Overrun
1. Engine speed goes above operating range.
2. Defective engine controller
E-23 Overheat
1. Engine water temperature goes above operating range.
2. Defective engine controller
E-24
Drop in oil
pressure
1. Engine oil pressure goes below operating range.
2. Defective oil pressure low-pressure sensor
3. Defective oil pressure high-pressure sensor
4. Short circuit with chassis ground in wiring harness between controller CN4 (5) and oil pressure low-pres-
sure sensor POL
5. Short circuit with chassis ground in wiring harness between controller CN4 (6) and oil pressure low-pres-
sure sensor POH
6. Defective engine controller
E-30
Abnormality in
idling
validation
signal system
1. Defective throttle sensor
2. Defective contact or disconnection in wiring harness between controller CN4 (female) (8) (GND) and throt-
tle sensor TS (female) (4)
3. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN4
(female) (11) (signal 2) and throttle sensor TS (female) (5)
4. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN4
(female) (12) (signal 3) and throttle sensor TS (female) (6)
5. Defective engine controller
E-31
Abnormality in
throttle sensor
system
(accelerator
pedal type)
1. Defective throttle sensor
2. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1 (4)
(power source) and throttle sensor TS (3)
3. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1 (6)
(signal) and throttle sensor TS (2)
4. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1
(11) (GND) and throttle sensor TS (1)
5. Defective engine controller
Abnormality in
throttle sensor
system
(fuel control dial
type)
1. Defective throttle sensor
2. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1 (4)
(power source) and throttle sensor TS (1)
3. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1 (6)
(signal) and throttle sensor TS (2)
4. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN1
(11) (GND) and throttle sensor TS (3)
5. Defective engine controller
E-34
Abnormality in
water temperature
high-temperature
sensor system
1. Defective water temperature high-temperature sensor
2. Defective contact, disconnection, or short circuit with ground in wiring harness between controller CN2 (4)
(signal) and water temperature high-temperature sensor TWH (1)
3. Defective contact or disconnection in wiring harness between controller CN2 (10) (GND) and water tem-
perature high-temperature sensor TWH (2)
4. Defective engine controller
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