Komatsu SAA6D114E-3 User Manual

SEN00460-01 40 Troubleshooting
40 114E-3 Series
E-48 Code [1633/CA1633] KOMNET Error 1
Error code Failure code
Trouble Abnormality in KOMNET
1633 CA1633
Contents of
trouble
• Engine controller detected abnormality in KOMNET communication circuit to controllers on applica-
ble machine side.
Action of con-
troller
• Depends on machine model.
• If problem is removed, system is returned to normal operating state.
Problem that
appears on
machine
• KOMNET communication information may not be transmitted correctly to cause incorrect operation
of machine.
(Problem depends on failure occurrence location.)
Related infor-
mation
• Method of reproducing failure code: Starting switch ON.
Possible causes
and standard
value in normal
state
Causes Standard value in normal state/Remarks on troubleshooting
1
Disconnection in wiring har-
ness (Disconnection in wiring
or defective contact in con-
nector)
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between CM02 (female) (8)
(9) – C01 (female) (45), – J2 (female) (46),
– K02 (female) (A)
Resis-
tance
Max. 1 z
Wiring harness between CM02 (female) (10)
– C01 (female) (64), – J2 (female) (47),
– K02 (female) (B)
Resis-
tance
Max. 1 z
2
Ground fault in wiring har-
ness (Short circuit with GND
circuit)
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between CM02 (female) (8)
(9) – C01 (female) (45), – J2 (female) (46),
– K02 (female) (A), – N08 (male) (3)
Resis-
tance
Min. 1 Mz
Wiring harness between CM02 (female) (10)
– C01 (female) (64), – J2 (female) (47),
– K02 (female) (B), – N08 (male) (10)
Resis-
tance
Min. 1 Mz
3
Hot short (Short circuit with
24V circuit) in wiring harness
a Prepare with starting switch OFF, then turn starting switch ON
and carry out troubleshooting.
Wiring harness between CM02 (female) (8)
(9) – C01 (female) (45), – J2 (female) (46),
– K02 (female) (A), – N08 (male) (3)
Voltage
Max.
5.5 V
Wiring harness between CM02 (female) (10)
– C01 (female) (64), – J2 (female) (47),
– K02 (female) (B), – N08 (male) (10)
Voltage
Max.
5.5 V
4
Defective CAN terminal
resistance (Internal short cir-
cuit, disconnection)
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
K02 (male) Resistance
Between (A) – (B) 47 – 67 z
5 Defective pump controller
If causes 1 – 4 are not detected, engine controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)

Komatsu SAA6D114E-3 Specifications

General

Brand	Komatsu
Model	SAA6D114E-3
Category	Engine
Language	English