Failure Code [Dhtcl6] Hst Filter Clogging Sensor: Functional Defect - Komatsu WA250-6 Shop Manual

SEN03846-00

Failure code [DHTCL6] HST filter clogging sensor: Functional defect

Action code Failure code
E01 DHTCL6
Contents of
• When engine stopped, HST filter clogging sensor was turned ON (Ground fault was detected).
trouble
Action of
• Turns HST filter clogging caution lamp OFF.
machine monitor
Problem that
appears on
• Foreign matter may enter HST hydraulic circuit.
machine
Related
• Input state (ON/OFF) of HST filter clogging sensor can be checked with monitoring function.
information
(Monitoring code: MONITOR PANEL – 40903 – D-IN-24)
Defective HST filter clogging
1
sensor (Internal defect)
Possible causes
and standard
value in normal
Ground fault in wiring har-
state
2 ness (Contact with GND cir-
cuit)
3 Defective machine monitor
Related circuit diagram
16
40-360
Failure code [DHTCL6] HST filter clogging sensor: Functional defect
HST filter clogging sensor: Functional defect
Trouble
(Machine monitor system)
Causes
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Wiring harness between T13 – T14
a Prepare with starting switch OFF, then carry out troubleshooting
without turning starting switch ON.
Between wiring harness L26 (female) (5) –
T13 and ground
If causes 1 – 2 are not detected, machine monitor may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
360 Troubleshooting by failure code (Display of code), Part 6
Standard value in normal state/Remarks on troubleshooting
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
WA250, 250PZ-6