SECTION 5 - JLG CONTROL SYSTEM
5-10 – JLG Lift– 3121166
0 0 D RIVING AT CUTB ACK -- POTHOLE STILL
ENGAGED
While stowed, drive speed is reduced (due to lower ground
clearance) since the control system detected that the pot-
hole protection mechanism is deployed (failed to retraced).
In platform mode with a healthy elevation sensor, elevation
sensor less than 0.15V and the elevation prox closed and
pot-hole protection’s PHP switches detect down.
In platform mode with an unhealthy elevation sensor, the
elevation prox is closed AND
pot-hole protection’s PHP
switches detect down.
Clear the obstacle blocking
the pot-hole protection mech-
anism, repair the mechanical
problem, re-adjust the pot-
hole limit switches, or repair
the wiring to correct the prob-
lem.
0 0 F UNCTIONS LO CKED OUT -- SYSTEM POWERD
DOWN
After 2 hours without activity, the control system enters a
low-power state to preserve battery charge.
Check batteries charge, con-
dition, etc. Normal operation
should resume after a power
cycle.
0 0 DRIVE PREVENTED -- ELEVATED AND ABOVE
DRIVE CUTOUT HEIGHT
The Drive Cutout functionality is enabled, and the platform
is elevated above the calibrated cutout height.
Drive Cutout is set to 1=YES AND
the Elevation Sensor is
“Healthy” AND the Elevation Sensor’s Zeroed Voltage is
Greater Than the Calibrated Drive Cutout Voltage.
Refer to Drive Cutout Functionality.
Check elevation switches
Check pothole switches.
Help messages with the 2-1 flash code occur during after power-up of the vehicle control system.
2 1 STARTUP This help message is issued at each power-up. This serves
to indicate which messages have been recorded in logged
help since the last power-up event.
No motion restrictions.
No motions restricted.
2 1 K EYSWITCH FAULTY -- PLAT FORM & GROUN D
ACTIVE TOGETHER
The platform and ground mode inputs from the keyswitch
are active at the same time. The control system will default
to ground mode when if this happens. The keyswitch and
wiring inside the ground control box should be examined /
repaired.
Platform EMS digital input energized and ground mode
select digital input energized.
Default to ground mode operation and lift up prevented
Re-cycle power once the
problem has been resolved to
clear this difficulty.
Help messages with the 2-2 flash code indicate difficulty with the platforms controls.
2 2 F UNCTION PROBLEM -- HO RN PERMANENT LY
SELECTED
Horn switch in the platform control box was closed during
power-up.
In platform mode, the Indoor/Outdoor switch digital input is
energized and power-up is active. Retained until either is
momentarily de-energized.
Previously selected Indoor/Outdoor mode maintained.
Release or repair the switch to
clear the message.
2 2 F UNCTION PROBLEM -- IN DOOR / OUTDOO R
PERMANENTLY SELECTED
Indoor / Outdoor switch in the platform control box was
closed during power-up.
In Platform Mode, the Indoor / Outdoor Switch Digital Input
is Energized and Power-up is Active. Retained until Digital
Input is momentarily De-energized.
Previously selected Indoor / Outdoor Mode maintained
Release or repair the switch to
clear the message.
Table 5-2. Flash Code Listing
FLASH
CODE
HELP MESSAGE CAUSE POSSIBLE RESOLVE
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