Komatsu 80001 User Manual

SEN04119-01 40 Troubleshooting
32 PC130-8
Failure code [CA153] Charge air temp. sensor high error 1
User code Failure code
Trouble
Charge air temp. sensor high error
(Engine controller system)
E15 CA153
Contents of
trouble
• High voltage was detected in charge (boost) temperature sensor circuit.
Action of
controller
• Fixes charge (boost) temperature (intake air temperature) (70°C) and continues operation.
Problem that
appears on
machine
Related
information
• Signal voltage of charge (boost) temperature sensor can be checked with monitoring function.
(Code: 18501 Boost temperature sensor voltage)
• Method of reproducing failure code: Turn starting switch ON.
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1
Defective charge (boost)
temperature sensor
(Internal trouble)
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
PTIM (male)
Intake air
temperature
Resistance
Between (2) – (1)
0°C 29 – 36 kz
25°C 9 – 11 kz
40°C 4.9 – 5.8 kz
100°C 600 – 700 z
Between (2) –
chassis ground
All range Min. 1 Mz
2
Disconnection in wiring
harness
(Disconnection in wiring or
defective contact in connec-
tor)
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Wiring harness between ENG1 (female)
(11) – PTIM (female) (2)
Resis-
tance
Max. 1 z
Wiring harness between ENG1 (female)
(48) – PTIM (female) (1)
Resis-
tance
Max. 1 z
3
Ground fault in wiring har-
ness
(Short circuit with GND cir-
cuit)
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Wiring harness between ENG1 (female)
(11) – PTIM (female) (2) and chassis ground
Resis-
tance
Min. 1 Mz
4 Defective engine controller
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
ENG1 (female)
Intake air
temperature
Resistance
Between (11) – (48)
0°C 29 – 36 kz
25°C 9 – 11 kz
40°C 4.9 – 5.8 kz
100°C 600 – 700 z

Komatsu 80001 Specifications

General

Brand	Komatsu
Model	80001
Category	Excavators
Language	English