JLG 24RS Service Manual - Manual (Page 210)

SECTION 6 - JLG CONTROL SYSTEM
6-34 – JLG Lift – 3121287
L/S JOY. CENTER TAP BAD 2220 The Platform Module detects that the Lift/Swing center tap voltage is
out of range Disable Lift and Swing in Plat-
form Mode. The Platform Module detects
that the lift/swing center tap
voltage is in range and no lon-
ger reports the fault
LIFT/SWING LOCKED - JOY-
STICK MOVED BEFORE FOOT-
SWITCH 2221 The Ground Module detects one of the following conditions:
The machine is in Platform Mode and the Lift and/or Swing controls
are not in the neutral position immediately following Start Up.
The machine is in Platform Mode and the footswitch is depressed or
DTC 2212, 2213 or 2223 are active while the Lift/Swing joystick is not
in the neutral position.
If fault occurs at startup, dis-
able Lift and Swing in Platform
Mode
If fault occurs by engaging the
footswitch after the control,
then machine is not permitted
to enter the Machine Enabled
state.
Return Lift/Swing controls to
neutral while not in the
Enabled state.
Return Lift/Swing controls to
neutral and release the foot-
switch
WAITING FOR FSW TO BE OPEN 2222 Machine is in Platform Mode
Footswitch has been engaged since Start Up Machine is not allowed to enter
the Machine Enabled state Release the Footswitch
FUNCTION SWITCHES LOCKED
- SELECTED BEFORE ENABLE 2223 The machine is in Platform Mode and the footswitch is depressed or
DTC 2212, 2213, or 2221 is active while any of the following boom
control inputs are engaged:
Tower Lift
Telescope
Platform Level
Platform Rotate
Jib Lift Machine is not allowed to enter
the Machine Enabled state Release engaged control
switch and then depress foot-
switch
FOOTSWITCH SELECTED
BEFORE START 2224 Machine is in Platform mode
The footswitch is already engaged when an engine start is
attempted from the platform controls Disable engine start Release the footswitch before
attempting to start the engine
FUNCTION PROBLEM - PLAT-
FORM ROTATE LEFT PERMA-
NENTLY SELECTED 2247 The machine is in Platform mode and the platform rotate switch is
sending a continual left rotate signal. Machine enters Creep Mode
and Platform Rotate Left and
Right prohibited. Release the footswitch and
return the platform rotate
switch to neutral. Actuate
switch while monitoring state
changes under appropriate
menu in DIAGNOSTICS-->OPER
CONTROLS on Analyzer.
Replace the switch if faulty.
FUNCTION PROBLEM - PLAT-
FORM ROTATE RIGHT PERMA-
NENTLY SELECTED 2248 The machine is in Platform mode and the platform rotate switch is
sending a continual right rotate signal. Machine enters Creep Mode
and Platform Rotate Left and
Right prohibited. Release the footswitch and
return the platform rotate
switch to neutral. Actuate
switch while monitoring state
changes under appropriate
menu in DIAGNOSTICS-->OPER
CONTROLS on Analyzer.
Replace the switch if faulty.
Table 6-5. Fault Code Troubleshooting Information
Help Message DTC Condition Producing DTC
Control System Response or
Machine Condition
Corrective Action/
Operational Requirement
for Function Movement
and/or to Clear Fault