Hardware; Lss Cell #4 Error; Lss Has Not Been Calibrated; Lss Watchdog Reset - Oshkosh JLG 1930ES Service Maintenance Manual

8-2 Platform Load Sense
DTC FAULT MESSAGE

824 LSS CELL #4 ERROR

825 LSS HAS NOT BEEN CAL-
IBRATED

9-9 Hardware

DTC FAULT MESSAGE
991 LSS WATCHDOG RESET A problem has been detected

992 LSS EEPROM ERROR

993 LSS INTERNAL ERROR -
PIN EXCITATION
994 LSS INTERNAL ERROR -
DRDY MISSING FROM A/
D
995 POWER MODULE FAIL-
URE - PERSONALITY
RANGE ERROR
996 POWER MODULE FAIL-
URE - INTERNAL ERROR
997 POWER MODULE FAIL-
URE - CHECK POWER
CIRCUITS OR MOSFET
SHORT CIRCUIT
998 EEPROM FAILURE -
CHECK ALL SETTINGS
999 FUNCTION LOCKED
OUT - POWER MODULE
SOFTWARE VERSION
IMPROPER
9910 FUNCTION LOCKED
OUT - PLATFORM MOD-
ULE SOFTWARE VER-
SION IMPROPER
3121656
DESCRIPTION
A problem has been detected
with the load sense system.
The load sensing system mod-
ule has not been calibrated
DESCRIPTION
with the load sense system.
A problem has been detected
with the load sense system.
A problem has been detected
with the load sense system.
A problem has been detected
with the load sense system.
The power module detected an
out-of-range or corrupt person-
ality setting
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 ver-
sion is not compatible with the
rest of the system.
The platform board software
version is not compatible with
the rest of the system.
SECTION 6 - DIAGNOSTIC TROUBLE CODES
CHECK
• Refer to Section 2.3: Troubleshooting in the LSS man-
ual, 3124288.
• Empty platform. Calibrate LSS, see Section 2.2: Cali-
bration in the LSS manual, 3124288.
• Refer to Section 2.3: Troubleshooting in the LSS man-
ual, 3124288.
CHECK
• Refer to Section 2.3: Troubleshooting in the LSS man-
ual, 3124288.
• Refer to Section 2.3: Troubleshooting in the LSS man-
ual, 3124288.
• Refer to Section 2.3: Troubleshooting in the LSS man-
ual, 3124288.
• Refer to Section 2.3: Troubleshooting in the LSS man-
ual, 3124288.
• Record all personality settings in ANALYZER -> PER-
SONALITIES and ANALYZER -> MACHINE SETUP. Reset
control system personalities to default settings by
selecting a different model than indicated, cycle
power then select proper model. Then, enter person-
ality settings recorded above.
• The System Module's analog to digital converter does
not respond for the power PCB. This is an internal fail-
ure.
• 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 Sec-
tion 3.6.
• Replace ground board.
• Replace power module to clear fault.
• Reprogram platform board.
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