JLG error codes

JLG electric boom lifts E300A, E300AJ, E300AJP and E600J, M600J

These machines do not give a fault number: the JLG analyser shows a text message, and the diagnostic light flashes out the group flash code (e.g. 2/2). In our database the message is also the code; we give the flash code with every message. Below are 105 messages with the original message from the manufacturer's manual and its description. They apply to these machines: JLG E300A, E300AJ, E300AJP, E600J, M600J. Source: JLG Service and Maintenance Manual E300A/E300AJ/E300AJP (3120772) and E600J/M600J (3121117, 3121813), Help Descriptions and Fault Flash Codes tables.

Brand

Machine type / control system

Error code

Showing the first 30: type more digits of the code.

The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.

All JLG messages: the list

Message	Meaning	Type
EVERYTHING OK	EVERYTHING OK	message
GROUND MODE OK	GROUND MODE OK	message
BRAKES RELEASED	BRAKES RELEASED	warning / function limited
DRIVING AT CREEP - TILTED	DRIVING AT CREEP - TILTED	warning / function limited
FWS	FWS	message
PUMP MOTOR AT CURRENT LIMIT	PUMP MOTOR AT CURRENT LIMIT	warning / function limited
RUNNING AT CREEP - CREEP SWITCH OPEN	RUNNING AT CREEP - CREEP SWITCH OPEN	message
RUNNING AT CUTBACK - ABOVE ELEVATION	RUNNING AT CUTBACK - ABOVE ELEVATION	message
RUNNING AT CREEP - TILTED AND ABOVE ELEVATION	RUNNING AT CREEP - TILTED AND ABOVE ELEVATION	warning / function limited
TESTS ACTIVE - RECYCLE EMS TO END	TESTS ACTIVE - RECYCLE EMS TO END	message
TILT MODULE FAILURE: BAD TILT SENSOR	TILT MODULE FAILURE: BAD TILT SENSOR	blocking fault
TRACTION MOTOR AT CURRENT LIMIT	TRACTION MOTOR AT CURRENT LIMIT	warning / function limited
WATER BATTERIES	WATER BATTERIES	warning / function limited
FWS FAULTYflash code 2/1	FWS FAULTY	blocking fault
START UPflash code 2/1	START UP	warning / function limited
DRIVE JOYSTICK FAULTYflash code 2/2	DRIVE JOYSTICK FAULTY	blocking fault
DRIVE LOCKED - JOYSTICK MOVED BEFORE EMS/FWSflash code 2/2	DRIVE LOCKED - JOYSTICK MOVED BEFORE EMS/FWS	warning / function limited
FWS INTERLOCK TRIPPEDflash code 2/2	FWS INTERLOCK TRIPPED	warning / function limited
STEER LOCKED - SELECTED BEFORE EMS/FWSflash code 2/2	STEER LOCKED - SELECTED BEFORE EMS/FWS	warning / function limited
STEER SWITCHES FAULTYflash code 2/2	STEER SWITCHES FAULTY	blocking fault
WAITING FOR FWS TO BE OPENflash code 2/2	WAITING FOR FWS TO BE OPEN	message
JOYSTICK FAULTS - CHECK PLATFORM BOX WIRINGflash code 2/2	JOYSTICK FAULTS - CHECK PLATFORM BOX WIRING	blocking fault
LIFT/SWING JOYSTICK FAULTYflash code 2/3	LIFT/SWING JOYSTICK FAULTY	blocking fault
LIFT/SWING LOCKED - JOYSTICK MOVED BEFORE EMS/FWSflash code 2/3	LIFT/SWING LOCKED - JOYSTICK MOVED BEFORE EMS/FWS	warning / function limited
PUMP POT FAULTYflash code 2/3	PUMP POT FAULTY	warning / function limited
PUMP SWITCHES FAULTY - CHECK DIAGNOSTICS/BOOMflash code 2/3	PUMP SWITCHES FAULTY - CHECK DIAGNOSTICS/BOOM	blocking fault
PUMP SWITCHES LOCKED - SELECTED BEFORE EMS/FWSflash code 2/3	PUMP SWITCHES LOCKED - SELECTED BEFORE EMS/FWS	warning / function limited
PUMP SWITCHED LOCKED - SELECTED BEFORE EMSflash code 2/3	PUMP SWITCHED LOCKED - SELECTED BEFORE EMS	warning / function limited
SWING/LIFT JOYSTICK FAULTYflash code 2/3	SWING/LIFT JOYSTICK FAULTY	blocking fault
BOOM PREVENTED - DRIVE SELECTEDflash code 2/5	BOOM PREVENTED - DRIVE SELECTED	message
BOOM PREVENTED - FUNCTION CUTOUT ACTIVEflash code 2/5	BOOM PREVENTED - FUNCTION CUTOUT ACTIVE	warning / function limited
DRIVE & BOOM PREVENTED - FUNCTION CUTOUT ACTIVEflash code 2/5	DRIVE & BOOM PREVENTED - FUNCTION CUTOUT ACTIVE	warning / function limited
DRIVE PREVENTED - ABOVE ELEVATIONflash code 2/5	DRIVE PREVENTED - ABOVE ELEVATION	message
DRIVE PREVENTED - BOOM MOVEMENT SELECTEDflash code 2/5	DRIVE PREVENTED - BOOM MOVEMENT SELECTED	message
DRIVE PREVENTED - CHARGER CONNECTEDflash code 2/5	DRIVE PREVENTED - CHARGER CONNECTED	message
DRIVE PREVENTED - TILTED ABOVE ELEVATIONflash code 2/5	DRIVE PREVENTED - TILTED ABOVE ELEVATION	blocking fault
LINE & DIRECTION CONTACTORS MISWIREDflash code 3/1	LINE & DIRECTION CONTACTORS MISWIRED	blocking fault
OPEN-CIRCUIT FORWARD DIRECTION CONTACTOR OR TRACTION MOTORflash code 3/1	OPEN-CIRCUIT FORWARD DIRECTION CONTACTOR OR TRACTION MOTOR	blocking fault
OPEN-CIRCUIT LINE CONTACTORflash code 3/1	OPEN-CIRCUIT LINE CONTACTOR	blocking fault
OPEN-CIRCUIT REVERSE DIRECTION CONTACTOR OR TRACTION MOTORflash code 3/1	OPEN-CIRCUIT REVERSE DIRECTION CONTACTOR OR TRACTION MOTOR	blocking fault
WELDED LINE CONTACTORflash code 3/2	WELDED LINE CONTACTOR	blocking fault
OVERLOADED VALVE SUPPLY-CHECK WIRING.flash code 3/3	OVERLOADED VALVE SUPPLY-CHECK WIRING.	blocking fault
SHORT-CIRCUIT FORWARD CONTACTOR COILflash code 3/3	SHORT-CIRCUIT FORWARD CONTACTOR COIL	blocking fault
SHORT-CIRCUIT LINE CONTACTOR COILflash code 3/3	SHORT-CIRCUIT LINE CONTACTOR COIL	blocking fault
SHORT-CIRCUIT REVERSE CONTACTOR COILflash code 3/3	SHORT-CIRCUIT REVERSE CONTACTOR COIL	blocking fault
BRAKES DID NOT LOCKflash code 3/5	BRAKES DID NOT LOCK	blocking fault
BRAKES DID NOT RELEASEflash code 3/5	BRAKES DID NOT RELEASE	blocking fault
CONTROLLER TOO HOT - PLEASE WAITflash code 4/2	CONTROLLER TOO HOT - PLEASE WAIT	blocking fault
BATTERY LOWflash code 4/4	BATTERY LOW	warning / function limited
BATTERY TOO HIGH - SYSTEM SHUT DOWNflash code 4/4	BATTERY TOO HIGH - SYSTEM SHUT DOWN	blocking fault
BATTERY TOO LOW - SYSTEM SHUT DOWNflash code 4/4	BATTERY TOO LOW - SYSTEM SHUT DOWN	blocking fault
NO VEHICLE MOVEMENT DETECTED AT MAXIMUM POWERflash code 5/5	NO VEHICLE MOVEMENT DETECTED AT MAXIMUM POWER	blocking fault
DRIVE PREVENTED - BOTH SPEED ENCODERS FAULTYflash code 5/5	DRIVE PREVENTED - BOTH SPEED ENCODERS FAULTY	blocking fault
LEFT SPEED ENCODER FAULTYflash code 5/5	LEFT SPEED ENCODER FAULTY	warning / function limited
TILT MODULE FAILURE; NOT COMMUNICATINGflash code 5/5	TILT MODULE FAILURE; NOT COMMUNICATING	blocking fault
RIGHT SPEED ENCODER FAULTYflash code 5/5	RIGHT SPEED ENCODER FAULTY	warning / function limited
SPEED ENCODERS READING INVALID SPEEDflash code 5/5	SPEED ENCODERS READING INVALID SPEED	blocking fault
VEHICLE RUNAWAY - CHECK SPEED ENCODERSflash code 5/5	VEHICLE RUNAWAY - CHECK SPEED ENCODERS	blocking fault
48V PROTECTION TRIPPED - CHECK INTER-MODULE WIRINGflash code 6/6	48V PROTECTION TRIPPED - CHECK INTER-MODULE WIRING	blocking fault
CAPACITOR BANK FAULT - CHECK POWER CIRCUITSflash code 7/7	CAPACITOR BANK FAULT - CHECK POWER CIRCUITS	blocking fault
OPEN-CIRCUIT PUMP MOTORflash code 7/7	OPEN-CIRCUIT PUMP MOTOR	blocking fault
OPEN-CIRCUIT DIRECTIONAL CONTACTOR OR TRACTION MOTORflash code 7/7	OPEN-CIRCUIT DIRECTIONAL CONTACTOR OR TRACTION MOTOR	blocking fault
PUMP POINT A LOW - CHECK POWER CIRCUITSflash code 7/7	PUMP POINT A LOW - CHECK POWER CIRCUITS	blocking fault
STALLED TRACTION MOTORflash code 7/7	STALLED TRACTION MOTOR	blocking fault
STALLED PUMP MOTORflash code 7/7	STALLED PUMP MOTOR	blocking fault
TRACTION MOTOR OVERLOADEDflash code 7/7	TRACTION MOTOR OVERLOADED	warning / function limited
PUMP MOTOR OVERLOADEDflash code 7/7	PUMP MOTOR OVERLOADED	warning / function limited
TRACTION CURRENT AT ZERO - CHECK SHUNT WIRINGflash code 7/7	TRACTION CURRENT AT ZERO - CHECK SHUNT WIRING	blocking fault
TRACTION POINT A HIGH - CHECK POWER CIRCUITSflash code 7/7	TRACTION POINT A HIGH - CHECK POWER CIRCUITS	blocking fault
TRACTION POINT A LOW - CHECK POWER CIRCUITSflash code 7/7	TRACTION POINT A LOW - CHECK POWER CIRCUITS	blocking fault
POWER MODULE FAILURE: CONTACTOR DRIVE CODE 1flash code 9/9	POWER MODULE FAILURE: CONTACTOR DRIVE CODE 1	blocking fault
POWER MODULE FAILURE: HWFS CODE 2flash code 9/9	POWER MODULE FAILURE: HWFS CODE 2	blocking fault
POWER MODULE FAILURE: HWFS CODE 3flash code 9/9	POWER MODULE FAILURE: HWFS CODE 3	blocking fault
POWER MODULE FAILURE: HWFS CODE 4flash code 9/9	POWER MODULE FAILURE: HWFS CODE 4	blocking fault
POWER MODULE FAILURE: HWFS CODE 10flash code 9/9	POWER MODULE FAILURE: HWFS CODE 10	blocking fault
POWER MODULE FAILURE: HWFS CODE 11flash code 9/9	POWER MODULE FAILURE: HWFS CODE 11	blocking fault
POWER MODULE FAILURE: HWFS CODE 12flash code 9/9	POWER MODULE FAILURE: HWFS CODE 12	blocking fault
POWER MODULE FAILURE: HWFS CODE 13flash code 9/9	POWER MODULE FAILURE: HWFS CODE 13	blocking fault
POWER MODULE FAILURE: HWFS CODE 14flash code 9/9	POWER MODULE FAILURE: HWFS CODE 14	blocking fault
POWER MODULE FAILURE: HWFS CODE 15flash code 9/9	POWER MODULE FAILURE: HWFS CODE 15	blocking fault
POWER MODULE FAILURE: HWFS CODE 16flash code 9/9	POWER MODULE FAILURE: HWFS CODE 16	blocking fault
POWER MODULE FAILURE: HWFS CODE 17flash code 9/9	POWER MODULE FAILURE: HWFS CODE 17	blocking fault
POWER MODULE FAILURE: HWFS TEST STALLEDflash code 9/9	POWER MODULE FAILURE: HWFS TEST STALLED	blocking fault
POWER MODULE FAILURE: BAD TEMPERATURE SENSORflash code 9/9	POWER MODULE FAILURE: BAD TEMPERATURE SENSOR	blocking fault
POWER MODULE FAILURE: S/C LINE CONTACTOR DRIVERflash code 9/9	POWER MODULE FAILURE: S/C LINE CONTACTOR DRIVER	blocking fault
FSW OPEN	FSW OPEN	message
RUNNING AT CREEP - TILTED & ABOVE ELEVATION	RUNNING AT CREEP - TILTED & ABOVE ELEVATION	warning / function limited
FSW FAULTYflash code 2/1	FSW FAULTY	blocking fault
DRIVE LOCKED - JOYSTICK MOVED BEFORE EMS/FSWflash code 2/2	DRIVE LOCKED - JOYSTICK MOVED BEFORE EMS/FSW	warning / function limited
FSW INTERLOCK TRIPPEDflash code 2/2	FSW INTERLOCK TRIPPED	warning / function limited
STEER LOCKED - SELECTED BEFORE EMS/FSWflash code 2/2	STEER LOCKED - SELECTED BEFORE EMS/FSW	warning / function limited
WAITING FOR FSW TO BE OPENflash code 2/2	WAITING FOR FSW TO BE OPEN	message
4WD ASSIST DISABLED-NOT AVAILABLE WITH BOOMflash code 2/2	4WD ASSIST DISABLED-NOT AVAILABLE WITH BOOM	message
LIFT/SWING LOCKED - JOYSTICK MOVED BEFORE EMS/FSWflash code 2/3	LIFT/SWING LOCKED - JOYSTICK MOVED BEFORE EMS/FSW	warning / function limited
PUMP SWITCHES LOCKED - SELECTED BEFORE EMS/FSWflash code 2/3	PUMP SWITCHES LOCKED - SELECTED BEFORE EMS/FSW	warning / function limited
OPEN-CIRCUIT FORWARD CONTACTOR OR TRACTION MOTORflash code 3/1	OPEN-CIRCUIT FORWARD CONTACTOR OR TRACTION MOTOR	blocking fault
OPEN-CIRCUIT REVERSE CONTACTOR OR TRACTION MOTORflash code 3/1	OPEN-CIRCUIT REVERSE CONTACTOR OR TRACTION MOTOR	blocking fault
SYSTEM TOO HOT - PLEASE WAITflash code 4/2	SYSTEM TOO HOT - PLEASE WAIT	blocking fault
GROUND MODULE FAILURE: OBSOLETE ON THIS VEHICLEflash code 6/6	GROUND MODULE FAILURE: OBSOLETE ON THIS VEHICLE	blocking fault
CAPACITOR BANK FAULT - CHECK POWER/MOTOR WIRINGflash code 7/7	CAPACITOR BANK FAULT - CHECK POWER/MOTOR WIRING	blocking fault
WARNING:flash code 7/7	WARNING:	blocking fault
OPEN-CIRCUIT DIRECTION CONTACTOR OR TRACTION MOTORflash code 7/7	OPEN-CIRCUIT DIRECTION CONTACTOR OR TRACTION MOTOR	blocking fault
PUMP POINT A LOW - CHECK POWER / MOTOR WIRINGflash code 7/7	PUMP POINT A LOW - CHECK POWER / MOTOR WIRING	blocking fault
TRACTION POINT A HIGH - CHECK POWER / MOTOR WIRINGflash code 7/7	TRACTION POINT A HIGH - CHECK POWER / MOTOR WIRING	blocking fault
TRACTION POINT A LOW - CHECK POWER / MOTOR WIRINGflash code 7/7	TRACTION POINT A LOW - CHECK POWER / MOTOR WIRING	blocking fault