JLG R4045 Operation And Safety Manual page 120

SECTION 6 - GENERAL SPECIFICATIONS AND MAINTENANCE
DTC Help Message
POWER MODULE TOO COLD - MODULE SHUT-
4236
DOWN
MASTER MODULE TEMPERATURE – OUT OF
426
RANGE
BATTERY VOLTAGE TOO LOW – SYSTEM
SHUTDOWN
441
BATTERY VOLTAGE TOO HIGH – SYSTEM
SHUTDOWN
442
LOGIC SUPPLY VOLTAGE OUT OF RANGE HIGH None
4421
6-28
Flash
Alarm
Code
None 4_2 • DriveState = PREVENTED
• LiftUpState = PREVENTED
None 4_2 • Normal operation
None 4_4 • SafeMode
• LiftDownState = PREVENTED
None 4_4 • Enter SafeMode
• LiftDownState = MAX
4_4 • Enter SafeMode
• LiftDownState = MAX
Action
• Heatsink temperature below -40° F(-40°C).
• Possible Cause:
• Controller is operating in an extreme environment.
• The Ground Module's internal temperature sensor is out of range. (<
104° F (40° C) or > 302° F (150° C)
• Battery Voltage(VBAT) momentarily dropped below 14.5V when
using flooded lead-acid batteries, or 16.0V when using AGM batter-
ies. With a low battery charge, this can occur during heavy current
demand due to Drive, Steer, or Lift Up. Recharge batteries or check
for damaged batteries, sulfated batteries, or poor power connec-
tions.
• The Ground Module measured excessively high battery voltage
(VBAT) (>32.0V) and de-energized the Main Line Contactor and Bat-
tery Relay to protect system devices and was unable to bring voltage
down to normal operating range. This may be due to improper bat-
tery charging or incorrect voltage batteries being used.
• The Ground Module's VSW voltage was measured to be more than
32V. This may be caused by loose battery terminal, severely dis-
charge batteries, a damaged battery, or an improper wire harness
connection.
Trigger
31215942