Operator Manual User Manual

SECTION 6 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
6-22 – JLG Lift – 3121221
444 LSS BATTERY VOLTAGE TOO LOW A problem has been detected with the load
sense system.
• Recharge batteries or check for damaged batteries.
Refer problem to a qualified JLG mechanic.
446
4421
4422
LOGIC SUPPLY VOLTAGE OUT OF RANGE The System Module logic supply voltage
was measured to be out of normal operating
range.
• Check for severely discharged battery, loose cables or for damaged bat-
tery; otherwise;
• Refer problem to a qualified JLG mechanic.
4-4 Battery Supply
DTC FAULT MESSAGE DESCRIPTION CHECK
6-6 Communication
DTC FAULT MESSAGE DESCRIPTION CHECK
661 CANBUS FAILURE - POWER MODULE The control system failed to receive mes-
sages from the power module.
Refer problem to a qualified JLG mechanic.
662 CANBUS FAILURE - PLATFORM MODULE In platform mode, the control system failed
to receive messages from the platform
board.
Refer problem to a qualified JLG mechanic.
663 CANBUS FAILURE - LOAD SENSING SYS-
TEM MODULE
With load sensing system enabled, the con-
trol system failed to receive messages from
the load sensing system module.
Refer problem to a qualified JLG mechanic.
664 CANBUS FAILURE - ACCESSORY MOD-
ULE
An accessory module has stopped commu-
nication.
• See accessory module documentation for troubleshooting.
Refer problem to a qualified JLG mechanic.
6635 CANBUS FAILURE - CHASSIS TILT SEN-
SOR
Machine control system lost communica-
tion with the machines’ tilt sensor.
• Refer problem to a qualified JLG mechanic.