305 Troubleshooting by failure code, Part 5
Failure code [DXE5KA] Merge-divide Main Sol Open Circuit
40-305 32 PC200, 200LC, 220, 220LC-8M0
SEN06137-00
Failure code [DXE5KA] Merge-divide Main Sol Open Circuit
Action
level
Failure code
Failure
Merge-divide Main Solenoid Open Circuit
(Pump controller system)
L01 DXE5KA
Detail of failure
q When pump merge-divider (main) EPC solenoid is driven, no current flows and open circuit is de-
tected .
Action of con-
troller
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.)
q Even if cause of failure disappears, machine does not become normal until starting switch is turned
to OFF position.
Problem on
machine
q Single operation speed of work equipment and swing is high in fine control mode (L).
q Machine does not turn easily during travel.
Related infor-
mation
q Drive current to merge-divider main EPC solenoid can be checked with monitoring function.
(Code: 08000 Merge-divider (main) solenoid current)
q Method of reproducing failure code: Turn starting switch to ON position.
Cause Procedure, measuring location, criteria and remarks
1
Defective merge-divider main EPC
solenoid (internal open circuit)
1. Turn starting switch to OFF position.
2. Disconnect connector V23, and connect T-adapters to male side.
Between V23 (male) (1) and (2) Resistance 3 to 14 z
2
Open or short circuit in wiring har-
ness
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)
Resistance 3 to 14 z
3
Open circuit in wiring harness
(wire breakage or defective con-
tact of connector)
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) Resistance Max. 1 z
Between V23 (female) (2) and each of C02 (female)
(115), (117) and (120)
Resistance Max. 1 z
4 Defective pump controller
If no failure is found by above checks, pump controller is defective. (Since this
is an internal defect, troubleshooting cannot be performed.)
To Next Page
Loading...
Need help?
General
