JLG M450 ANSI Service Manual - Manual (Page 211)

SECTION 6 - JLG CONTROL SYSTEM
3121127 – JLG Lift – 6-33
2514 25 BOOM PREVENTED - DRIVE SELECTED Boom functions are not possible while the vehicle is being driven
AND is configured to not allow simultaneous drive & boom opera-
tion.
2516 25 DRIVE PREVENTED - ABOVE ELEVATION Driving is not possible while Boom functions are selected AND is
configured to not allow simultaneous drive & boom operation.
2517 25 DRIVE PREVENTED - TILTED & ABOVE ELEVATION Driving is not possible while the vehicle is tilted and above eleva-
tion AND is configured to prevent drive while tilted and above ele-
vation.
2518 25 DRIVE PREVENTED - BOOM SELECTED Driving is not possible while the vehicle boom functions are
selected AND is configured to not allow simultaneous drive &
boom operation.
2536 25 ALL FUNCTIONS PREVENTED - FUNCTION CUTOUT Machine Setup’s set for "1 =CHARGER & BOOM" and machine is
above elevation
2542 25 FUNCTION PREVENTED - BRAKES ELECTRONICALL Y
RELEASED FOR TOWING Indicates Manual Brake release active in Ground mode
2548 25 SYSTEM TEST MODE ACTIVE System test mode active
2549 25 DRIVE & BOOM PREVENTED - SOFT TOUCH ACTIVE Machine Setup’s SOFT TOUCH is set for "2=BOOM & DRIVE" and
Soft touch switch is OPEN
2550 25 BOOM PREVENTED - FUNCTION CUTOUT ACTIVE Machine Setup’s DRIVE CUTOUT is set for "1 =CHARGER &
BOOM" and machine is above elevation
2551 25 TELESCOPE OUT PREVENTED - TIL TED & ABOVE ELEVATION Telescope OUT is not possible while the vehicle is tilted and above
elevation AND is configured to prevent drive while tilted and
above elevation.
2552 25 LIFT UP PREVENTED - TILTED & ABOVE ELEVATION Lift UP is not possible while the vehicle is tilted and above eleva-
tion AND is configured to prevent drive while tilted and above ele-
vation.
2553 25 LEVELING PREVENTED - ABOVE ELEVATION Machine Setup’s LEVEL inhibit is set for "1 =ELEV" and machine
is above elevation
2554 25 DRIVE PREVENTED - SPEED SENSORS FAULTY Both Speed sensor input voltages are out of range
2555 25 FUNCTION PREVENTED - SELECTED BEFORE FSW Function switch was selected before and during foot switch clo-
sure
2556 25 FUNCTION PREVENTED - SELECTED BEFORE EMS Function was CLOSED at power up
321 32 LINE CONTACTOR WELDED OR MISWIRED The capacitor bank charge did not decrease from battery supply
when line contactor was de-energized (this could be caused due
to a power wiring error)
325 32 LINE & DIRECTION CONTACTORS MISWIRED When the line contactor was closed, traction point A went HIGH
(and the capacitor bank charge did not increase to battery supply)
- this occurs if the line contactor coil wiring is swapped with that
for a direction contactor coil
33300 33 LINE CONTACTOR COIL - OPEN CIRCUIT The capacitor bank did not increase to battery supply when the
line contactor was CLOSED
33301 33 LINE CONT ACTOR COIL - SHORT TO GROUND Line contactor was not energized when required, due to over cur-
rent protection
33361 33 DIRECTION CONTACTOR COIL - OPEN CIRCUIT Traction point A is collapsing when the traction MOSFETs are
pulsed. This maybe due to an open circuit traction motor or power
wiring error
Table 6-8. Diagnostic Fault Codes
DTC
Flash
Code
Fault Message Description