Help Descriptions And Fault Flash Codes - JLG E450A Service And Maintenance Manual

Flash Code
No flash code is indicated for the following help messages; they are intended to hint at a possible problem if the vehicle is not behaving as expected.
EVERYTHING OK
The "normal" help message in platform mode
GROUND MODE OK
The "normal" help message in ground mode
BRAKES RELEASED
Indicates manual brake release in ground mode
DRIVING AT CREEP - TILTED
Drive speed is limited to creep because the vehicle is tilted.
FWS OPEN
A drive or boom function has been selected but footswitch is open.
PUMP MOTOR AT CURRENT LIMIT
Pump current has reached controller current limit or safe operating area limit.
RUNNING AT CREEP - CREEP SWITCH OPEN
All function speeds are limited to creep because the creep switch is open.
RUNNING AT CUTBACK - ABOVE ELEVATION
All function speeds are limited to cutback speed because the vehicle is above elevation.
RUNNING AT CREEP - TILTED AND ABOVE ELEVATION
All function speeds are limited to creep because the vehicle it tilted and above elevation.
TESTS ACTIVE - RECYCLE EMS TO END
The system tests have been activated; normal vehicle operation is not allowed.
TILT MODULE FAILURE: BAD TILT SENSOR
There is a problem with the tilt sensor interface circuitry; the controller defaults to massively tilted and does not try
to prevent vehicle roll on the grade.
TRACTION MOTOR AT CURRENT LIMIT
Traction current has reached controller current limit or safe operating area limit.
WATER BATTERIES
The batteries have been charged a number of times (set by machine digit) and need a top-up; when this is done the
count will reset
Flash code 2/1 indicates problems with the footswitch.
2/1
FWS FAULTY
The two footswitch signals do not agree. EMS recycle required.
START UP
Neither EMS input is active - the system is just switching on or is discharging the capacitor bank. A welded line con-
tactor might also cause this
3121714
Table 6-8. Help Descriptions and Fault Flash Codes
SECTION 6 - JLG CONTROL SYSTEM
Description
6-35