Failure Code [Dw91Kb] Travel Junction Sol Short - Komatsu PC210-8 Shop Manual

UEN00242-01

Failure code [DW91KB] Travel Junction Sol Short

User code Failure code
— DW91KB
Contents of
• When output to travel junction solenoid was turned ON, short circuit was detected in circuit.
trouble
Action of • Turns output to travel junction solenoid OFF.
controller
• Even if cause of failure disappears, system does not reset itself until starting switch is turned OFF.
Problem that
appears on
• Machine is not steered easily during travel.
machine
• Operating condition of travel junction solenoid can be checked with monitoring function.
Related infor-
(Code: 02300 Solenoid 1)
mation
• Method of reproducing failure code: Start engine + Steer machine with right and left travel levers.
Defective travel junction
1 solenoid (Internal short cir-
cuit or ground fault)
Possible causes
Ground fault in wiring har-
and standard
2 ness (Short circuit with GND
value in normal
circuit)
state
3 Defective pump controller
40
Travel junction solenoid system short
Trouble
(Pump controller system)
Cause
a Prepare with starting switch OFF, then carry out troubleshooting
Between (1) – chassis ground
a Prepare with starting switch OFF, then carry out troubleshooting
Wiring harness between C02 (female) (110)
– V05 (female) (1)
a Prepare with starting switch OFF, then carry out troubleshooting
Between (110) – (115), (117),
Between (110) – chassis ground
Standard value in normal state/Remarks on troubleshooting
without turning starting switch ON.
V05 (male)
Between (1) – (2)
without turning starting switch ON.
without turning starting switch ON.
C02 (female)
(120)
40 Troubleshooting
1
Resistance
20 – 60 z
Min. 1 Mz
Resis-
Min. 1 Mz
tance
Resistance
20 – 60 z
Min. 1 Mz
PC210, 230, 240-8