SECTION 5 - JLG CONTROL SYSTEM
5-14 – JLG Lift– 3121642
2/6
FRONT DECK RETRACT VALVE SHORT TO GROUND
Reported by the I/O module and during system test when the front deck retract
valve is short to ground.
6
FRONT DECK RETRACT VALVE SHORT TO BATTERY
Reported by the I/O module and during system test when the front deck retract
valve is short to battery.
REAR DECK EXTEND VALVE OPEN CIRCUIT
Reported by the I/O module and during system test when the rear deck extend
valve is open circuit.
REAR DECK EXTEND VALVE SHORT TO GROUND
Reported by the I/O module and during system test when the rear deck extend
valve is short to ground.
REAR DECK EXTEND VALVE SHORT TO BATTERY
Reported by the I/O module and during system test when the rear deck extend
valve is short to battery.
REAR DECK RETRACT VALVE OPEN CIRCUIT
Reported by the I/O module and during system test when the rear deck retract
valve is open circuit.
REAR DECK RETRACT VALVE SHORT TO GROUND
Reported by the I/O module and during system test when the rear deck retract
valve is short to ground.
REAR DECK RETRACT VALVE SHORT TO BATTERY
Reported by the I/O module and during system test when the rear deck retract
valve is short to battery.
4/3
Flash code 4/3 indicates engine issues.
7
FUEL SENSOR SHORT TO BATTERY Reported when the fuel sensor is reading a value that is much too high.
FUEL SENSOR SHORT TO GROUND Reported when the fuel sensor is reading ground.
FUEL SENSOR DISCONNECTED Reported when the fuel sensor is reading a value that is too high.
OIL PRESSURE SHORT TO BATTERY Reported when the oil pressure sensor is reading a value that is too high.
OIL PRESSURE SHORT TO GROUND Reported when the oil pressure sensor is reading a value that is too low.
COOLANT TEMPERATURE SHORT TO GROUND Reported when the coolant temperature sensor is reading a value that is too low.
ENGINE TEMPERATURE HIGH This fault is not reported at this time.
AIR FILTER BYPASSED This fault is not reported at this time.
NO ALTERNATOR OUTPUT
Reported when the engine is running for at least a few seconds and the alternator
input is on the ground board is high.
OIL PRESSURE LOW
Reported when the oil pressure is below eight PSI and the engine is running for at
least a few seconds.
ENGINE SHUTDOWN COMMANDED – CHECK ENGINE SENSORS Reported when the engine is commanded to shutdown by the control system.
WRONG ENGINE SELECTED Reported when CAN ECM is detected and not configured.
DEUTZ ECM FAULT CODE
Reported when the Deutz Engine Controller is gi vin g a f ault . S ee en gine manu al
for more information.
4/4
Flash code 4/4 indicates a battery supply issue.
8
BATTERY LOW Reported when the voltage on the system is below 11 volts.
BATTERY TOO HIGH – SYSTEM SHUTDOWN Reported when the voltage on the system is above 16 volts.
BATTERY TOO LOW – SYSTEM SHUTDOWN Reported when the voltage on the system is below 9 volts.
LSS BATTERY VOLTAGE HIGH Reported when the voltage on the LSS is above 34 volts.
LSS BATTERY VOLTAGE LOW Reported when the voltage on the LSS is below 9 volts.
5/5
Flash code 5/5 indicates a speed sensor issue.
9
SPEED SENSOR READING INVALID SPEED Reported when the speed sensor is reading a value over 4000 RPM.
SPEED INPUT LOST
Reported when the speed sensor is reading zero RPM and the oil pressure is over
eight PSI.
Table 5-2. Fault Code Listing - Software P1.X
Fault Flash
Code
Communicated (Displayed on Analyzer) Fault Description Priority
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