Failure Code [Dxe5Ka] Merge-Divide Main Sol Open Circuit - Komatsu PC200-8M0 Shop Manual

SEN06137-00

Failure code [DXE5KA] Merge-divide Main Sol Open Circuit

Action
Failure code
level
L01 DXE5KA
q
When pump merge-divider (main) EPC solenoid is driven, no current flows and open circuit is de-
Detail of failure
tected .
q
None in particular (Since no current flows, merge-divider main solenoid does not operate. Since no
current flows, merge-divider LS solenoid does not operate, either.)
Action of con-
q
troller Even if cause of failure disappears, machine does not become normal until starting switch is turned
to OFF position.
q
Problem on Single operation speed of work equipment and swing is high in fine control mode (L).
q
machine Machine does not turn easily during travel.
q
Drive current to merge-divider main EPC solenoid can be checked with monitoring function.
Related infor-
(Code: 08000 Merge-divider (main) solenoid current)
mation
q
Method of reproducing failure code: Turn starting switch to ON position.
Cause
Defective merge-divider main EPC
1
solenoid (internal open circuit)
Open or short circuit in wiring har-
2
ness
Open circuit in wiring harness
3 (wire breakage or defective con-
tact of connector)
4 Defective pump controller
32
40-305
Failure code [DXE5KA] Merge-divide Main Sol Open Circuit
Merge-divide Main Solenoid Open Circuit
Failure
(Pump controller system)
Procedure, measuring location, criteria and remarks
1. Turn starting switch to OFF position.
2. Disconnect connector V23, and connect T-adapters to male side.
Between V23 (male) (1) and (2)
1. Turn starting switch to OFF position.
2. Disconnect connector C02 and connect T-adapters to female side.
Between C02 (female) (112) and each of (115),
(117) and (120)
a If no failure is found by check on cause 2, this check is not required.
1. Turn starting switch to OFF position.
2. Disconnect connectors C02 and V23, and connect T-adapters to each
female side.
Between C02 (female) (112) and V23 (female) (1)
Between V23 (female) (2) and each of C02 (female)
(115), (117) and (120)
If no failure is found by above checks, pump controller is defective. (Since this
is an internal defect, troubleshooting cannot be performed.)
305 Troubleshooting by failure code, Part 5
Resistance
Resistance
Resistance
Resistance
PC200, 200LC, 220, 220LC-8M0
3 to 14 z
3 to 14 z
Max. 1 z
Max. 1 z