Failure Code [Dw43Kb] Travel Speed Sol Short - Komatsu PC210-8 Shop Manual

UEN00242-01

Failure code [DW43KB] Travel Speed Sol Short

User code Failure code
— DW43KB
Contents of
• When output to travel speed shifting solenoid was turned ON, short circuit was detected in circuit.
trouble
Action of • Turns output to travel speed shifting solenoid OFF.
controller
• Even if cause of failure disappears, system does not reset itself until starting switch is turned OFF.
• PC210: Speed is low at High travel speed position (Machine monitor is set to High but actual speed
Problem that
is about Middle).
appears on
• PC240: Speed is low at High and Middle travel speed position (Machine monitor is set to High or
machine
Middle but actual speed is about Low).
• Operating condition of travel speed shifting solenoid can be checked with monitoring function.
Related infor-
(Code: 02300: Solenoid 1)
mation
• Method of reproducing failure code: Start engine + Set travel speed to High + Operate travel lever.
Defective travel speed shift-
1 ing solenoid (Internal discon-
nection)
Possible causes
Ground fault in wiring har-
and standard
2 ness (Short circuit with GND
value in normal
circuit)
state
3 Defective pump controller
32
Travel speed 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) (87) –
V04 (female) (1)
a Prepare with starting switch OFF, then carry out troubleshooting
Between (87) – (115), (117),
Between (87) – chassis ground
Standard value in normal state/Remarks on troubleshooting
without turning starting switch ON.
V04 (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