Power Module Failure - Internal Error; Power Module Failure - Check Power Circuits Or Mosfet Short Circuit; Eeprom Failure - Check All Settings; Function Locked Out - Power Module Software Version Improper - JLG 1930ES Service Maintenance Manual

SECTION 6 - DIAGNOSTIC TROUBLE CODES
9-9 Hardware
DTC FAULT MESSAGE
996 POWER MODULE FAILURE -
INTERNAL ERROR
997 POWER MODULE FAILURE -
CHECK POWER CIRCUITS
OR MOSFET SHORT CIR-
CUIT
998 EEPROM FAILURE - CHECK
ALL SETTINGS
999 FUNCTION LOCKED OUT -
POWER MODULE SOFT-
WARE VERSION IMPROPER
9910 FUNCTION LOCKED OUT -
PLATFORM MODULE SOFT-
WARE VERSION IMPROPER
9911 FUNCTION LOCKED OUT -
LSS MODULE SOFTWARE
VERSION IMPROPER
9912 POWER MODULE FAILURE -
SYSTEM MONITOR
9924 FUNCTIONS LOCKED OUT -
MACHINE NOT CONFIG-
URED
9950 POWER MODULE FAILURE -
INTERNAL ERROR
9951 POWER MODULE FAILURE -
INTERNAL ERROR
9952 POWER MODULE FAILURE -
INTERNAL ERROR
9953 POWER MODULE FAILURE -
INTERNAL ERROR
9954 POWER MODULE FAILURE -
INTERNAL ERROR
9955 POWER MODULE FAILURE -
INTERNAL ERROR
6-18
DESCRIPTION
Drive, Steer, & Lift Prevented
The power module detected an error in
the power wiring for the drive or pump.
The control system detected an
EEPROM failure.
The power module software version is not
compatible with the rest of the system.
The platform board software version is
not compatible with the rest of the system.
The load sensing system module soft-
ware version is not compatible with the
rest of the system.
The ground board detected armature,
field, or pump current while function was
not commanded.
The control system' s memory indicates
that the vehicle has not been configured
(new control system components).
Drive, Steer, & Lift Prevented
Drive, Steer, & Lift Prevented
Drive, Steer, & Lift Prevented
Drive, Steer, & Lift Prevented
Drive, Steer, & Lift Prevented
Drive, Steer, & Lift Prevented
– JLG Lift –
CHECK
• The System Module's analog to digital converter does not
respond for the power PCB. This is an internal failure.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
• Refer to Drive Motor Electrical Evaluation in Section 3.5.
• Refer to Pump Motor Electrical Evaluation in Section 4.8.
• Refer to Power Module Electrical Evaluation in Section 3.6.
• Replace ground board.
• Replace power module to clear fault.
• Reprogram platform board.
• Replace LSS module to clear fault.
• Refer to Drive Motor Electrical Evaluation in Section 3.5.
• Refer to Pump Motor Electrical Evaluation in Section 4.8.
• Refer to Power Module Electrical Evaluation in Section 3.6.
• Use the JLG analyzer to adjust all machine setup and personality
settings, refer to 5.7 Machine Configuration Programming Infor-
mation.
• The System Module's armature power circuitry is driven without
PWM command for 100mS.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
• The System Module's pump power circuitry is driven without
enable from the interface PCB for 100mS.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
• The System Module's pump power circuitry is driven without
PWM command for 100mS.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
• The System Module's field power circuitry is driven without
enable from the interface PCB for 100mS.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
• The System Module's field power circuitry is driven without
reverse direction from the power PCB for 100mS.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
• The System Module's field power circuitry is driven without for-
ward selection from the power PCB for 100mS.
• Cycle machine, if error still exists, replace System Module.
• ZAPI - HEALTH (Status LED) - FLASHING
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