JLG 4394RT Service Manual User Manual
Page 221

SECTION 5 - JLG CONTROL SYSTEM
3121249
– JLG Lift –
5-15
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.
6/6
Flash code 6/6 indicates CANbus issues.
10
CAN BUS FAILURE
Reported when there is a problem with the CANbus.
LSS NOT SENDING CAN MESSAGES
Reported when the LSS is configured and not seen on the CAN-
bus.
ENGINE CONTROLLER CAN COMMUNICATION LOST
Reported when the engine is configured to be CAN controlled and
the system is not communicating with it.
TWO PLATFORM MODULES DETECTED
Reported when there are two platform modules connected to the
control system.
8/*
Flash codes 8/* indicate load cells issues.
11
8/1
LSS CELL #1 ERROR
Reported when there is a problem with cell #1 on the LSS.
8/2
LSS CELL #2 ERROR
Reported when there is a problem with cell #2 on the LSS.
8/3
LSS CELL #3 ERROR
Reported when there is a problem with cell #3 on the LSS.
8/4
LSS CELL #4 ERROR
Reported when there is a problem with cell #4 on the LSS.
9/*
Flash codes 9/* indicate LSS or memory issues.
12
9/1
LSS WATCHDOG RESET
Reported when the LSS’s microprocessor watchdog has been
triggered.
9/2
LSS EEPROM ERROR
Reported when there is a problem with the stored memory in the
LSS.
9/3
LSS HAS NOT BEEN CALIBRATED
Reported when the LSS is configured but not calibrated.
9/9
LSS NEEDS TO BE RE-CALIBRATED
Reported when the LSS is configured and reporting a value that is
less than half of the offset value; this will be reported as a negative
value.
LSS INTERNAL ERROR – PIN EXCITATION
Reported when a pin in the LSS is reporting a voltage below 4.25
volts.
LSS INTERNAL ERROR – DRIVER FAULT
Reported when the LSS detects this internal error.
LSS INTERNAL ERROR – DRDY MISSING FROM A/D
Reported when the LSS detects this internal error.
EEPROM FAILURE – CHECK ALL SETTINGS
Reported when the memory in the ground or platform module has
become corrupt.
4150588 D
Table 5-2. Fault Code Listing - Software P1.X
Fault Flash
Code
Communicated (Displayed on Analyzer) Fault
Description
Priority