Failure Code [Dxe0Ka] Ls-Epc Sol Discon - Komatsu PC210-8 Shop Manual

40 Troubleshooting

Failure code [DXE0KA] LS-EPC Sol Discon

User code Failure code
— DXE0KA
Contents of
• When LS-EPC solenoid was driven, disconnection was detected in circuit.
trouble
Action of • None in particular (Since no current flows, solenoid does not operate).
controller
• If cause of failure disappears, system resets itself.
Problem that
• Travel speed is high at Lo and Mi.
appears on
• Work equipment speed and swing speed are high in lifting mode (L).
machine
• Drive current of LS-EPC solenoid can be checked with monitoring function.
Related infor-
(Code: 01500 LS-EPC solenoid current)
mation
• Method of reproducing failure code: Turn starting switch ON.
Defective LS-EPC solenoid
1
(Internal disconnection)
Possible causes
Disconnection in wiring har-
and standard
ness (Disconnection in wiring
2
value in normal
or defective contact in con-
state
nector)
3 Defective pump controller
PC210, 230, 240-8
LS-EPC solenoid system disconnection
Trouble
(Pump controller system)
Cause
a Prepare with starting switch OFF, then carry out troubleshooting
a Prepare with starting switch OFF, then carry out troubleshooting
Wiring harness between C02 (female) (88) –
V19 (female) (1)
Wiring harness between C02 (female) (115),
(117), (120) – V19 (female) (2)
a Prepare with starting switch OFF, then carry out troubleshooting
Between (88) – (115), (117),
Standard value in normal state/Remarks on troubleshooting
without turning starting switch ON.
V19 (male)
Between (1) – (2)
without turning starting switch ON.
without turning starting switch ON.
C02 (female)
(120)
UEN00243-01
1
Resistance
7 – 14 z
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resistance
7 – 14 z
11