TROUBLESHOOTING E-MODE
PC58UU-3
20-315
1
PRECAUTIONS FOR OPERATING SYSTEM RESET SWITCH WHEN
ERROR CODE IS DISPLAYED AND WORK EQUIPMENT STOPS
•
If the solenoid system has a trouble and the error code [42], [51], and [52] are displayed and the work
equipment stops, do not turn ON the emergency work equipment operation switch. If the emergency
work equipment operation switch is turned ON and fuse 3 is broken, inspect the related diodes as well
as the solenoid system having the trouble.
<Reference>
When the cause of the trouble in the solenoid system is a short circuit in the solenoid or short circuit
with the chassis ground in the wiring harness between the controller and solenoid, if the emergency
work equipment operation switch is turned on, an overcurrent flows and the internal resistance of the
diodes may become 0 before the fuse is broken.
★
The PPC lock solenoid system is checked for only [short circuit in the solenoid and short circuit with the
chassis ground in the positive (+) wiring harness]. Accordingly, if error code [41] is displayed, never
turn on the reset switch but perform troubleshooting first.
•
Diodes related to each solenoid
Error code Troubled system
Related diodes
D3 D4 D5 D6 D7 D8 D9 D10
41 PPC lock solenoid
●●
42 LEFT offset stop solenoid
●●
51 Boom RAISE EPC solenoid
●●
52 Arm IN EPC solenoid
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