SECTION 6 - JLG CONTROL SYSTEM
6-40
– JLG Lift –
3121659
FSW FAULTY
213
The ground footswitch input and platform footswitch input
have been both HIGH or both LOW for greater than or equal to 1
second
The UGM shall not Enable the
Machine
Power Cycled
FUNCTION PROBLEM - HORN
PERMANENTLY SELECTED
221
Machine is in Platform Mode;
The Horn switch input = High at Startup
The UGM shall prohibit Horn;
Ground and Platform Alarm
are still permitted
The Horn switch input = Low
FUNCTION PROBLEM - STEER
LEFT PERMANENTLY SELECTED
224
Machine is in Platform Mode;
The Steer Left switch input = High at Startup
The UGM shall prohibit Steer
Left and Right;
The UGM shall limit Drive to
Creep
The Steer Left switch input = Low;
Steer Left and Right and full Drive speed
permitted after controls are initialized
FUNCTION PROBLEM - STEER
RIGHT PERMANENTLY
SELECTED
225
Machine is in Platform Mode;
The Steer Right switch input = High at Startup
The UGM shall prohibit Steer
Left and Right;
The UGM shall limit Drive to
Creep
The Steer Right switch input = Low;
Steer Left and Right and full Drive speed
permitted after controls are initialized
STEER SWITCHES FAULTY
227
The Steer Left switch input = High;
The Steer Right switch input = High;
(detectable in Platform or Ground mode)
The UGM shall prohibit Steer;
The UGM shall limit Drive to
Creep
The Steer Left switch input = Low;
The Steer Right switch input = Low;
Steer and full Drive speed permitted after
controls are initialized
FSW INTERLOCK TRIPPED
2211
Machine is in Platform Mode;
The Footswitch is active for more than seven seconds with no
Drive, Steer, or Boom commands
The UGM shall disable
Machine Enable
The footswitch is released
DRIVE LOCKED - JOYSTICK
MOVED BEFORE FOOTSWITCH
2212
Machine is in Platform Mode;
The UGM detects one of the following conditions:
Drive joystick is not in the neutral position at Startup;
Drive joystick is not in the neutral position when Footswitch
becomes active or while DTC 2213, 2221 or 2223 is active
If triggered by the Drive joy-
stick not being in the neutral
position at Startup, the UGM
shall prohibit Drive and Steer.
If triggered by the Drive joy-
stick not being in the neutral
position when Footswitch
becomes active or while DTC
2213, 2221 or 2223 is active,
the UGM shall not Enable the
Machine
If triggered by the Drive joystick not being in
the neutral position at Startup, then (Drive
joystick is returned to its neutral position)
and (Drive and Steer permitted after con-
trols initialized)
If triggered by the Drive joystick not being in
the neutral position when Footswitch
becomes active or while DTC 2213, 2221 or
2223, then controls initialized
STEER LOCKED - SELECTED
BEFORE FOOTSWITCH
2213
Machine is in Platform Mode;
A Steer input is active when Footswitch becomes active or
while DTC 2212, 2221 or 2223 is active
The UGM shall not Enable the
Machine
Controls initialized
D/S JOY. OUT OF RANGE HIGH
2216
The PM detects that the Drive or Steer joystick signal voltage >
8.1V and reports the fault to the UGM.
The UGM shall prohibit Drive;
Brake release and Steer still
permitted
The PM no longer reports the fault
D/S JOY. CENTER TAP BAD
2217
The PM detects that the Drive or Steer center tap voltage is not
between 3.31 volts and 3.75 volts and reports the fault to the
UGM
The UGM shall prohibit Drive;
Brake release and Steer still
permitted
The PM detects that the drive/steer center
tap voltage is between 3.31 and 3.75 volts
and no longer reports the fault to the UGM
L/S JOY. OUT OF RANGE HIGH
2219
The PM detects that the Lift or Swing joystick signal voltage >
8.1V and reports the fault to the UGM.
If the Machine is in Platform
Mode, the UGM shall prohibit
Lift and Swing
The PM detects that the Lift and Swing joy-
stick signal voltage is < 8.1V and no longer
reports the fault to the UGM
L/S JOY. CENTER TAP BAD
2220
The PM detects that the Lift or Swing center tap voltage is not
between 3.31 volts and 3.75 volts and reports the fault to the
UGM
If the Machine is in Platform
Mode, the UGM shall prohibit
Lift and Swing
The PM detects that the lift/swing center
tap voltage is between 3.31 and 3.75 volts
and no longer reports the fault to the UGM
Table 6-5. Diagnostic Trouble Code Chart
Help Message
DTC
Fault Condition/Trigger
(For configurable items, fault applies only if
configured. All listed conditions to be met unless
stated otherwise)
Required Control
Response or State
Assignment
Conditions Required for Movement
and/or to Clear Fault
Summary of Contents for JLG 450AJ
Page 2: ......
Page 32: ...SECTION 1 SPECIFICATIONS 1 18 JLG Lift 3121659 NOTES...
Page 80: ...SECTION 4 BOOM PLATFORM 4 2 JLG Lift 3121659 Figure 4 1 Boom Assembly...
Page 81: ...SECTION 4 BOOM PLATFORM 3121659 JLG Lift 4 3 Figure 4 2 Main Boom Assembly Sheet 1 of 2...
Page 82: ...SECTION 4 BOOM PLATFORM 4 4 JLG Lift 3121659 Figure 4 3 Main Boom Assembly Sheet 2 of 2...
Page 83: ...SECTION 4 BOOM PLATFORM 3121659 JLG Lift 4 5 Figure 4 4 Upper Boom Assembly...
Page 84: ...SECTION 4 BOOM PLATFORM 4 6 JLG Lift 3121659 Figure 4 5 Jib Assembly...
Page 118: ...SECTION 4 BOOM PLATFORM 4 40 JLG Lift 3121659 NOTES...
Page 156: ...SECTION 5 BASIC HYDRAULIC INFORMATION HYDRAULIC SCHEMATICS 5 38 JLG Lift 3121659 NOTES...
Page 164: ...SECTION 6 JLG CONTROL SYSTEM 6 8 JLG Lift 3121659 Figure 6 2 Tilt Sensor Location...
Page 169: ...SECTION 6 JLG CONTROL SYSTEM 3121659 JLG Lift 6 13 Figure 6 7 Analyzer Connecting Points...
Page 181: ...SECTION 6 JLG CONTROL SYSTEM 3121659 JLG Lift 6 25 Figure 6 19 Platform Module Sheet 1 of 2...
Page 182: ...SECTION 6 JLG CONTROL SYSTEM 6 26 JLG Lift 3121659 Figure 6 20 Platform Module Sheet 2 of 2...
Page 224: ...SECTION 6 JLG CONTROL SYSTEM 6 68 JLG Lift 3121659 NOTES...
Page 340: ...SECTION 7 BASIC ELECTRICAL INFORMATION ELECTRICAL SCHEMATICS 7 116 JLG Lift 3121659 NOTES...
Page 341: ......
