Komatsu Galeo BR380JG-1E0 Shop Manual page 724

SEN02095-00
Disconnection in wiring
harness
(Disconnection in wir-
3
ing harness or defec-
tive contact in
connector)
4 Defective solenoid
Possible
causes and
standard value
5 Defective diode
in normal state
Defective travel lock
EPC pressure switch
(When the machine
travels immediately
6 after the switch is
pressed but stops
soon, travel lock EPC
pressure switch may
be defective.)
Defective transmitter
7
and receiver
38
Cause Standard value in normal state/Remarks on troubleshooting
Wiring harness between A33 (female) (7) – A45
(5) – D10 (female) (4)
Wiring harness between S23 (female) (2) – A02
(12) – A08A (2) – D10 (female) (5) (6) (7) (8)
Wiring harness between S23 (female) (1) – A02
(4) – C03 (female) (29)
a Prepare with starting switch OFF, then carry out troubleshooting without
turning starting switch ON.
V20 (male), V21 (male),
V22 (male), V23 (male)
Between (2) – chassis ground
a Prepare with starting switch OFF, then carry out troubleshooting without
turning starting switch ON.
Check the connector D10 according to "Testing procedure for diodes" in
Testing and adjusting.
Check with monitoring function of the machine monitor.
(Code 25001: Radio controller traveling signal)
Start the engine and operate with the radio controller, ensuring the safety
of surrounding area.
(See Troubleshooting E-17, and operate the machine under the operable
conditions.)
Radio controller traveling signal)
When no fault is found in the troubleshooting 3 and 5 but a fault is found in
this troubleshooting, travel lock EPC pressure switch may be defective
If all the results of above checks 1 – 6 are normal, the transmitter or
receiver is defective.
Between (1) – (2)
Code 25001:
40 Troubleshooting
Resistance Max. 1 z
Resistance Max. 1 z
Resistance Max. 1 z
Resistance
20 – 60 z
Min. 1 Mz
The ON display is normal when the
radio controller is operating.
BR380JG-1E0