JLG 4394RT Service Manual - Manual (Page 220)

SECTION 5 - JLG CONTROL SYSTEM
5-14 – JLG Lift– 3121249
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 giving a fault. See
engine manual 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.
Table 5-2. Fault Code Listing - Software P1.X
Fault Flash
Code
Communicated (Displayed on Analyzer) Fault Description Priority