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JLG error codes

JLG 260MRT rough terrain scissor lift

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 46 messages with the original message from the manufacturer's manual, and for 27 of them the description, causes and solution in the manual's own words. They apply to these machines: JLG 260MRT. Source: JLG Service and Maintenance Manual 260MRT (3121108, 31215866), help messages and flash codes tables.

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

MessageMeaningType
EVERYTHING OKEVERYTHING OKmessage
GROUND MODE OKGROUND MODE OKmessage
ALARM SOUNDING - TILTED & ABOVE ELEVATIONALARM SOUNDING - TILTED & ABOVE ELEVATIONwarning / function limited
DIFFERENT FUNCTION SELECTED & IGNOREDDIFFERENT FUNCTION SELECTED & IGNOREDmessage
DRIVING AT CUTBACK - ABOVE ELEVATIONDRIVING AT CUTBACK - ABOVE ELEVATIONmessage
FUNCTION SELECTED BUT TRIGGER SWITCH OPENFUNCTION SELECTED BUT TRIGGER SWITCH OPENmessage
JOYSTICK MOVED BUT NO FUNCTION SELECTEDJOYSTICK MOVED BUT NO FUNCTION SELECTEDmessage
DRIVE PREVENTED - ABOVE DRIVE CUTOUT HEIGHTDRIVE PREVENTED - ABOVE DRIVE CUTOUT HEIGHTwarning / function limited
STARTUPflash code 2/1STARTUPmessage
FUNCTIONS LOCKED OUT - SHORT TO PLATFORM ROW INPUT DETECTEDflash code 2/2FUNCTIONS LOCKED OUT - SHORT TO PLATFORM ROW INPUT DETECTEDblocking fault
FUNCTION PROBLEM - DRIVE PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - DRIVE PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - LIFT PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - LIFT PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - O/R or L/J PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - O/R or L/J PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - START PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - START PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - GLOW PLUG PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - GLOW PLUG PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - STEER LEFT PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - STEER LEFT PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - STEER RIGHT PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - STEER RIGHT PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - HORN PERMANENTLY SELECTEDflash code 2/2FUNCTION PROBLEM - HORN PERMANENTLY SELECTEDwarning / function limited
FUNCTION PROBLEM - JOYSTICK CALIBRATION FAULTYflash code 2/2FUNCTION PROBLEM - JOYSTICK CALIBRATION FAULTYblocking fault
JOYSTICK FAULTY - WIPER OUT OF RANGEflash code 2/2JOYSTICK FAULTY - WIPER OUT OF RANGEblocking fault
JOYSTICK FAULTY - STEER SWITCHES ACTIVE TOGETHERflash code 2/2JOYSTICK FAULTY - STEER SWITCHES ACTIVE TOGETHERblocking fault
FUNCTION LOCKED OUT - JOYSTICK NOT CENTEREDflash code 2/2FUNCTION LOCKED OUT - JOYSTICK NOT CENTEREDwarning / function limited
FUNCTION PROBLEM - TRIGGER PERMANENTLY CLOSEDflash code 2/2FUNCTION PROBLEM - TRIGGER PERMANENTLY CLOSEDwarning / function limited
TRIGGER CLOSED TOO LONG WHILE IN NEUTRALflash code 2/2TRIGGER CLOSED TOO LONG WHILE IN NEUTRALwarning / function limited
NO DATA FROM TILT SENSOR - NOT CONNECTED OR FAULTYflash code 2/3NO DATA FROM TILT SENSOR - NOT CONNECTED OR FAULTYblocking fault
DRIVE & LIFTUP PREVENTED - OSC AXLE NOT SETflash code 2/5DRIVE & LIFTUP PREVENTED - OSC AXLE NOT SETblocking fault
DRIVE & LIFTUP PREVENTED - FUNCTION CUTOUT ACTIVEflash code 2/5DRIVE & LIFTUP PREVENTED - FUNCTION CUTOUT ACTIVEblocking fault
ALL FUNCTIONS PREVENTED - FUNCTION CUTOUT ACTIVEflash code 2/5ALL FUNCTIONS PREVENTED - FUNCTION CUTOUT ACTIVEblocking fault
PLATFORM OVERLOADflash code 2/5PLATFORM OVERLOADblocking fault
ELEV PROX PERMANENTLY CLOSED - CHECK PROX & CAM SWITCH ADJUSTMENTflash code 2/5ELEV PROX PERMANENTLY CLOSED - CHECK PROX & CAM SWITCH ADJUSTMENTblocking fault
LEVEL PREVENTED - CHASSIS TILTED EXCESSIVELYflash code 2/5LEVEL PREVENTED - CHASSIS TILTED EXCESSIVELYblocking fault
FRONT LEFT LEVELING JACK SHORT TO GROUNDflash code 2/6FRONT LEFT LEVELING JACK SHORT TO GROUNDblocking fault
FRONT RIGHT LEVELING JACK SHORT TO GROUNDflash code 2/6FRONT RIGHT LEVELING JACK SHORT TO GROUNDblocking fault
REAR LEFT LEVELING JACK SHORT TO GROUNDflash code 2/6REAR LEFT LEVELING JACK SHORT TO GROUNDblocking fault
REAR RIGHT LEVELING JACK SHORT TO GROUNDflash code 2/6REAR RIGHT LEVELING JACK SHORT TO GROUNDblocking fault
FRONT LEFT LEVELING JACK SHORT TO BATTERYflash code 2/6FRONT LEFT LEVELING JACK SHORT TO BATTERYblocking fault
FRONT RIGHT LEVELING JACK SHORT TO BATTERYflash code 2/6FRONT RIGHT LEVELING JACK SHORT TO BATTERYblocking fault
REAR LEFT LEVELING JACK SHORT TO BATTERYflash code 2/6REAR LEFT LEVELING JACK SHORT TO BATTERYblocking fault
REAR RIGHT LEVELING JACK SHORT TO BATTERYflash code 2/6REAR RIGHT LEVELING JACK SHORT TO BATTERYblocking fault
OUTPUT ENERGIZED EXTERNALLY - CHECK WIRINGflash code 3/3OUTPUT ENERGIZED EXTERNALLY - CHECK WIRINGblocking fault
OUTPUT SHORTED - CHECK WIRINGflash code 3/3OUTPUT SHORTED - CHECK WIRINGblocking fault
BATTERY VOLTAGE TOO LOWflash code 4/4BATTERY VOLTAGE TOO LOWblocking fault
BATTERY VOLTAGE TOO HIGHflash code 4/4BATTERY VOLTAGE TOO HIGHblocking fault
ENGINE SHUTDOWN – OVERSPEEDflash code 5/5ENGINE SHUTDOWN – OVERSPEEDblocking fault
ENGINE SHUTDOWN - OIL PRES / COOLANT TEMPflash code 5/5ENGINE SHUTDOWN - OIL PRES / COOLANT TEMPblocking fault
COMMUNICATION FAILURE: I/O MODULEflash code 6/6COMMUNICATION FAILURE: I/O MODULEblocking fault