JLG 680S, Service And Maintenance Manual

Page: 471 / 530

SECTION 6 - JLG CONTROL SYSTEM
3121234 6-55
2220 22 L/S JOY. CENTER TAP BAD Resistive joysticks.
- There is a +/- 1V range. around these values due to
resistor tolerances.
2221 22 LIFT/SWING LOCKED - JOYSTICK MOVED BEFORE
FOOTSWITCH If triggered by the Lift and/or
Swing joystick not being in
the neutral position at
Startup, the UGM shall prohibit Lift and Swing.
If triggered by Lift and/or
Swing joystick is not in the
neutral position when Footswitch becomes active or
while DTC 2212, 2213 or 2223
is active, the UGM shall not
Enable the Machine.
2222 22 WAITING FOR FSW TO BE OPEN Can be reported during power- up.
2223 22 FUNCTION SWITCHES LOCKED - SELECTED BEFORE ENABLE The UGM shall not Enable the
Machine.
2224 22 FOOTSWITCH SELECTED BEFORE START The UGM shall prohibit
Engine Start.
2269 22 FUNCTION PROBLEM - HIGH SPEED & CREEP ACTIVE
TOGETHER
234 23 FUNCTION SWITCHES FAULTY - CHECK DIAGNOSTICS/BOOM Disable whichever boom
functions whose boom control inputs are triggering the fault. If Engine Start/
Aux at fault, disable Engine Start but permit Auxiliary Power/
Emergency Descent.
235 23 FUNCTION SWITCHES LOCKED - SELECTED BEFORE AUX
POWER
236 23 FUNCTION SWITCHES LOCKED - SELECTED BEFORE START
SWITCH
237 23 START SWITCH LOCKED - SELECTED BEFORE KEYSWITCH The UGM shall prohibit
Engine Start.
23163 23 FUNCTION PROBLEM - MSSO PERMANENTLY SELECTED No response required for this
DTC Power Cycled.
240 24 <<< OTHER CONTROLS >>>
241 24 AMBIENT TEMPERATURE SENSOR - OUT OF RANGE LOW The UGM shall set Low Temperature Cutout state = Faulty
If the Machine is in Platform
Mode and if the Boom is
Above Elevation;
The UGM shall suspend
motion;
If the Machine is in Ground
Mode; No response required for this DTC.
242 24 AMBIENT TEMPERATURE SENSOR - OUT OF RANGE HIGH Check Ambient Temperature sensor reading < 85C.
250 25 <<< FUNCTION PREVENTED >>>
259 25 MODEL CHANGED - HYDRAULICS SUSPENDED - CYCLE EMS Disable all machine and
engine functions (i.e., command engine shutdown and do not permit start).
2513 25 GENERATOR MOTION CUTOUT ACTIVE The UGM shall not Enable the
Machine.
2514 25 BOOM PREVENTED - DRIVE SELECTED The UGM shall prohibit all
boom functions.
Table 6-9. Diagnostic Trouble Code Chart (DTC)
DTC Flash Code Fault Message Check