Failure Code [Daj0Kt] Hst Controller Memory (Eeprom): Abnormality - Komatsu WA250-6 Shop Manual

SEN03844-00

Failure code [DAJ0KT] HST controller memory (EEPROM): Abnormality

Action code Failure code
E01 DAJ0KT
Contents of
• Information in HST controller ROM (non-volatile memory) is abnormal.
trouble
Action of • Sets internal adjustment values to defaults.
machine monitor
• Even if cause of failure disappears, system does not reset itself until starting switch is turned OFF.
Problem that
appears on
• Performance may lower. For example, shift-down feel from 3rd or 4th gear speed may become bad.
machine
Related
• Method of reproducing failure code: Turn starting switch ON.
information
Possible causes
and standard
value in normal
1 Defective HST controller
state
22
40-340
Failure code [DAJ0KT] HST controller memory (EEPROM): Abnormality
HST controller memory (EEPROM): Abnormality
Trouble
(HST controller system)
Causes
• Carry out troubleshooting according to the following procedure.
1. Change set information of HST controller.
(Example: Change HST selection to B.)
2. Turn starting switch OFF.
3. Wait for at least 30 seconds, then turn starting switch ON again.
4. At this time, check that set information is reflected.
(Example: See if HST selection is kept at B and value is returned
to default A.)
<Diagnosis>
Set information is not reflected
(Value is returned to default): HST controller is defective.
Set information is reflected
(Value is not returned to default): HST controller is normal.
340 Troubleshooting by failure code (Display of code), Part 4
Standard value in normal state/Remarks on troubleshooting
WA250, 250PZ-6