JLG 1932RS/6RS Service And Maintenance Manual page 131

4-2 Thermal Limit (SOA)
DTC FAULT MESSAGE
421 POWER MODULE TOO HOT - PLEASE
WAIT
422 DRIVING AT CUTBACK - POWER MOD-
ULE CURRENT LIMIT
423 LIFT UP AT CUTBACK - POWER MOD-
ULE CURRENT LIMIT
4-4 Battery Supply
DTC FAULT MESSAGE
441 BATTERY VOLTAGE TOO LOW - SYS-
TEM SHUTDOWN
442 BATTERY VOLTAGE TOO HIGH - SYS-
TEM SHUTDOWN
446 LOGIC SUPPLY VOLTAGE OUT OF
RANGE
4421 LOGIC SUPPLY VOLTAGE OUT OF
RANGE
4422 LOGIC SUPPLY VOLTAGE OUT OF
RANGE
3121273
DESCRIPTION
The System Module's internal temperature is
excessive (>+75° C). Allow to cool by powering
down.
Armature current was greater than 250A for at
least 60 seconds. To avoid damage to the vehicle,
the System Module has reduced the current limit
to 120A.
Pump current was greater than 150A for at least
60 seconds. To avoid damage to the vehicle, the
System Module has reduced the current limit to
80A
DESCRIPTION
Battery Voltage momentarily dropped below
14.5V when using flooded lead-acid batteries, or
16.0V when using AGM batteries. With a low bat-
tery charge, this can occur during heavy current
demand due to Drive, Steer, or Lift Up.
The System Module momentarily measured
excessively high battery voltage (>36.0V) and
de-energized the Main Line Contactor and Bat-
tery Relay to protect system devices.
The system module logic supply voltage was
measured to be out of normal operating range by
the interface PCB (<11V).
The system module logic supply voltage was
measured by the power PCB to be more than 34V
for 10uS.
The system module logic supply voltage was
measured by the power PCB to be less than 11V
for 10uS.
SECTION 6 - DIAGNOSTIC TROUBLE CODES
• Power down and allow to cool.
• Do not operate in ambients over 140° F (60° C).
• Check for jammed or obstructed drive motors.
• Check for excessively high current consumption in the pump, ANALYZER -> DIAG-
NOSTICS -> PUMP -> PUMP CUR over 130 Amps with an empty deck.
• Check for excessively high traction current consumption, ANALYZER -> DIAGNOS-
TICS -> TRACTION -> ARM CUR over 120 Amps while driving on the level.
• HEALTH (Status LED) - ON
• Check for jammed or obstructed drive motors.
• Check for excessively high traction current consumption, ANALYZER -> DIAGNOS-
TICS -> TRACTION -> ARM CUR over 120 Amps while driving on the level.
• HEALTH (Status LED) - ON
• Check for jammed or obstructed arm stack or pivot bushing.
• Check for excessively high current consumption in the pump, ANALYZER -> DIAG-
NOSTICS -> PUMP -> PUMP CUR over 130 Amps with an empty deck.
• Refer to Section 4.3, Pump/Motor.
• HEALTH (Status LED) - ON
• Recharge batteries or check for damaged batteries.
• Check battery charger function.
• HEALTH (Status LED) - ON
• May be due to improper battery charging or incorrect voltage batteries being
used.
• HEALTH (Status LED) - ON
• This may be caused by a loose battery terminal, severely discharged batteries,
damaged battery, or an improper wire harness connection.
• Drive, Steer, and Lift Prevented
• HEALTH (Status LED) - ON
• This may be caused by a loose battery terminal, severely discharged batteries,
damaged battery, or an improper wire harness connection.
• Drive, Steer, and Lift Prevented
• HEALTH (Status LED) - ON
• This may be caused by a loose battery terminal, severely discharged batteries,
damaged battery, or an improper wire harness connection.
• Drive, Steer, and Lift Prevented
• HEALTH (Status LED) - ON
CHECK
CHECK
6-11