JLG 450A_AJ Series II Service Manual User Manual
Page 395
SECTION 6 - JLG CONTROL SYSTEM
3121180
– JLG Lift –
6-59
Table 6-8. Help Fault Codes, Displayed Faults, and Descriptions - S/N 0300066949 & S/N 1300000001 to Present
Fault Flash
Code
Communicated (Displayed on
Analyzer) Fault
Description
Priority
None
No flash code is indicated for the following help messages. They are intended
to hint at a possible problem if vehicle is not behaving as expected.
1
EVERYTHING OK
The “normal” help message in platform mode
GROUND MODE OK
The “normal” help message in ground mode
FSW OPEN
A drive or boom function has been selected but footswitch is open.
RUNNING AT CREEP – CREEP
SWITCH OPEN
All function speeds are limited to creep because the creep switch is open.
RUNNING AT CREEP – TILTED AND
ABOVE ELEVATION
All boom function speeds are limited to creep because vehicle is tilted and
above elevation.
RUNNING AT CUTBACK – OUT OF
TRANSPORT POSITION
Drive speed is limited to “ELEVATED MAX” because vehicle is out of transport
position.
CHASSIS TILT SENSOR OUT OF
RANGE
The chassis tilt sensor has indicated a tilt angle greater than 19 degrees for
more than 4 seconds. Not reported during 2 second power-up.
LOAD SENSOR READING UNDER
WEIGHT
Load sensor is reading 20% or more under calibrated zero point. This fault may
occur if basket is resting on ground. Not reported during 2 second power-up.
ENVELOPE ENCROACHED –
HYDRAULICS SUSPENDED
Machines with envelope control ONLY. System has detected an envelope
violation
OVER MOMENT – HYDRAULICS SUS-
PENDED
Only occurs on machines with moment control. The system has detected an
over moment violation.
UNDER MOMENT – HYDRAULICS
SUSPENDED
Machines with moment control ONLY. System has detected an under moment
violation.
1/1
Flash code 1/1 indicates a “sleep” mode.
NOT REQUIRED
2/1
Flash code 2/1 indicates problems with footswitch.
2
FSW FAULTY
The two footswitch inputs have read the same state for more than one second.
An EMS cycle is required.
KEYSWITCH FAULTY
Platform and ground modes selected simultaneously