JLG E450A Service And Maintenance Manual page 386

SECTION 6 - JLG CONTROL SYSTEM
DTC Cat DTC Num
00 48 BATTERY CHARGE LOW
00 46 TORQUE CUTBACK - EXCESSIVE TILT
21 1 POWER CYCLE
21 2 KEYSWITCH FAULTY
21 3 FSW FAULTY
22 1 FUNCTION PROBLEM - HORN PERMANENTLY
SELECTED
22 4 FUNCTION PROBLEM - STEER LEFT PERMA-
NENTLY SELECTED
22 5 FUNCTION PROBLEM - STEER RIGHT PERMA-
NENTLY SELECTED
22 7 STEER SWITCHES FAULTY
22 11 FSW INTERLOCK TRIPPED
22 12 DRIVE LOCKED - JOYSTICK MOVED BEFORE
FOOTSWITCH
22 13 STEER LOCKED - SELECTED BEFORE FOOT-
SWITCH
22 16 D/S JOY. OUT OF RANGE HIGH
22 17 D/S JOY. CENTER TAP BAD
6-70
Table 6-17. Diagnostic Trouble Codes
DTC Text
Battery SOC < 10%
UGM detects that the machine is ascending an
inclination of greater than or equal to:
19 degrees for a period of greater than 1 second.
[MACHINE SETUP = E400 or 450].
The normal help message is issued to designate
the start of each power cycle in Analyzer Logged
Help; new entry only recorded if new DTCs
occurred since last power cycle
UGM Ground Mode (input J7-3) and UGM Plat-
form Mode (input J7-2) are both HIGH at the same
time
The ground footswitch input and platform foot-
switch input have been both HIGH or both LOW for
greater than or equal to 1 second
The horn switch was closed during power-up
Machine in Platform Mode;
Steer Left Switch input = HIGH at Startup
Machine in Platform Mode;
Steer Right Switch input = HIGH at Startup
Both steer switch inputs on the Drive/Steer joy-
stick are High (detectable in Platform or Ground
mode).
Machine is in Platform Mode;
A Machine Enabled state has been active for
greater than or equal to 7 seconds without activa-
tion of any drive, steer, or boom functions
The machine is in Platform Mode and the drive
joystick is not in the neutral position immediately
following Start Up,.
The machine is in Platform Mode and a proper
machine enable signal is received or DTC 2213,
2221 or 2223 is active while the drive joystick is
not in the neutral position.
The UGM detects that the machine is in Platform
Mode and a proper machine enable signal is
received or DTC 2212, 2221 or 2223 is active while
the steer controls are not in the neutral position.
The PM detects that the drive or steer joystick sig-
nal voltage > 8.1V and reports the fault to the
UGM.
The PM detects that the drive/steer center tap
voltage is not between 3.31 volts and 3.75 volts
and reports the fault to the UGM
Fault Description
Battery SOC > Discharged;
speed restrictions removed after controls ini-
tialized
The UGM detects that the grade in direction of
travel is more than 3 degrees less than the
machine's trip point
No special conditions required
UGM Ground Mode (input J7-3) or UGM Plat-
form Mode (input J7-2) = LOW
Power cycled
Horn switch input = LOW
Steer Left Switch returns to neutral; steer func-
tions enabled after remaining controls are ini-
tialized
Steer Right Switch returns to neutral;
Steer functions enabled after remaining con-
trols are initialized
Steer Right and Steer Left are no longer simulta-
neous HIGH: steer and full Drive speed permit-
ted after controls are initialized
The footswitch is released
If triggered by the drive joystick not being in the
neutral position immediately following Start
Up THEN when Drive joystick is returned to its
neutral position and the machine is not in the
Enabled state. If triggered by proper machine
enable signal being received while the drive
joystick is not in the neutral position then when
the Drive joystick is returned to neutral or the
footswitch is released
When the steer controls are returned to neutral
or the footswitch is released
The PM no longer reports the fault
The PM detects that the drive/steer center tap
voltage is between 3.31 and 3.75 volts and no
longer reports the fault to the UGM
Solution
3121714