SECTION 5 - GENERAL SPECIFICATIONS AND MAINTENANCE
3121272
– JLG Lift –
5-25
4-4 Battery Supply
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
441
BATTERY VOLTAGE TOO LOW - SYSTEM
SHUTDOWN
A problem has been detected with the batter-
ies or power module.
•
Recharge batteries or check for damaged batteries.
•
Check battery charger function.
Refer problem to a qualified JLG mechanic.
442
BATTERY VOLTAGE TOO HIGH - SYSTEM
SHUTDOWN
A problem has been detected with the batter-
ies or power module.
•
May be due to improper battery charging or incorrect voltage batteries being
used.
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 battery;
otherwise;
•
Refer problem to a qualified JLG mechanic.
6-6 Communication
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
661
CANBUS FAILURE - POWER MODULE
The control system failed to receive messages
from the power module.
Refer problem to a qualified JLG mechanic.
6643 CANBUS FAILURE - LSS ANGLE SENSOR The control system failed to receive messages
from the angle sensor.
Refer problem to a qualified JLG mechanic.
