SEN04121-02 40 Troubleshooting
36 PC130-8
Failure code [DWJ0KA] Merge-divider sol discon 1
User code Failure code
Trouble
Merge-divider solenoid disconnection
(Pump controller system)
— DWJ0KA
Contents of
troubl
e
• When merge-divider EPC solenoid was driven,
disconnection was detected in circuit.
Action of
controller
• None in particular (Since no current flows, solenoid does not operate).
• If cause of failure disappears, system resets itself.
Problem that
a
ppears on
machine
• Single operation speed of work equipment and swing is high in lifting mode (L).
Related
information
• 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 merge-divider EPC
solen
oid (Internal disconnec-
tion)
a Prep
are with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
V02 (male) Resistance
Between (1) – (2) 20 – 60 z
2
Disconnection in wiring har-
ness (Disconnection in wiring
or
defective contact in con-
nector)
a Prep
are with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Wiring harness between CP02 (female)
(1
12) – V02 (female) (2)
Resis-
tance
Max. 1 z
Wiring harness between CP02 (female)
(1
15), (117), (120) – V02 (female) (1)
Resis-
tance
Max. 1 z
3 Defective pump controller
a Prep
are with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
CP02 (female) Resistance
Between (112) – (115), (117),
(120)
20 – 60 z
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