Kubota WSM L3560 Workshop Manual page 646

L3560, L4060, L4760, L5060, L5460, L6060, WSM
Display on IntelliPanel
ERROR No. 90
HST-F SOLENOID NG
ERROR No. 91
HST-R SOLENOID NG
ERROR No. 92
Hi-Lo SOLENOID NG
ERROR No. 93
Starter RELAY NG
ERROR No. 94
OPC NG
ERROR No. 95
PTO SOLENOID NG
Trouble Item
• Output voltage of proportional
valve terminal or return current
is out of specification
• Wiring for proportional valve is
disconnected or short-circuited
Proportional valve for • Proportional valve failure
forward is in trouble
Proportional valve for
reverse is in trouble
• Hi-Lo solenoid output terminals
voltage is out of specification
• Hi-Lo solenoid broken or
Hi-Lo solenoid shift is in
short-circuited
trouble
• Wiring for Hi-Lo solenoid valve
is disconnected or
short-circuited
• Starter relay failure
• Wiring for starter relay is
Starter relay is in trouble
disconnected or short-circuited
• Wiring for OPC is disconnected
or short-circuited
OPC is in trouble
• PTO solenoid valve failure
• Wiring for PTO solenoid valve
is disconnected or
Solenoid (PTO) is in
short-circuited
trouble
• Grounding plate of solenoid is
poor contact with chassis
Probable Cause
Travel motion is possible on
the backward side only
Check the connector of
proportional
Check the proportional valve
by Test mode (Mode A)
Check the proportional valve
resistance at valve or main
ECU connector
Check the ground cable
Replace the proportional valve
Travel motion is possible on
the forward side only
Check the connector of
proportional
Check the proportional valve
by Test mode (Mode A)
Check the proportional valve
resistance at valve or main
ECU connector
Check the ground cable
Replace the proportional valve
Travel motion is possible. The
HST electronic control
function (Mode 3) is in the
inoperative condition
Check the Hi-Lo solenoid
resistance
Replace the Hi-Lo solenoid
Engine does not start
Replace the starter relay
Check the wiring connector of
starter relay
Engine is stopped
Check the wiring connector of
OPC
Check the communication line
between terminal B18 of main
ECU and terminal 20 of
engine ECU
PTO does not rotate
Check the PTO solenoid valve
Replace the PTO solenoid
valve
Check the wiring connector of
PTO solenoid valve
9-S8
ELECTRICAL SYSTEM
Reference
Solution
Page
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9-S58
9-S17
9-S58
9-S35
9-S58
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9-S58
9-S17
9-S58
9-S35
9-S58
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9-S59
9-S59
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9-S66
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9-S62
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3-S20
3-S113
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9Y1210824ELS0151US0
KiSC issued 03, 2016 A