JLG 24RS Service Manual - Manual (Page 231)

SECTION 6 - JLG CONTROL SYSTEM
3121287 – JLG Lift – 6-55
LSS INTERNAL ERROR – DRDY
MISSING FROM A/D 994 The Ground Module detects an LSS report of an anomaly that exists in
the LSS A/D converter operations. The Ground Module sets the
Platform Load State to Over-
loaded Cycle power to clear the fault.
EEPROM FAILURE - CHECK ALL
SETTINGS 998 The Ground Module has detected an anomaly in the EEPROM The Ground Module disables all
functions and resets the section
of EEPROM where the failure
occurred back to the defaults. Cycle power to clear the fault.
FUNCTIONS LOCKED OUT -
PLATFORM MODULE SOFT-
WARE VERSION IMPROPER 9910 The Ground Module software major version number does not match
the major version number of the platform software The platform alarm sounds
continuously and, Creep mode
is active. If the Platform Mode is
active all Drive, Steer, and
Boom functions are disabled. Platform Module needs repro-
grammed with correct version
of software.
FUNCTION LOCKED OUT - LSS
MODULE SOFTWARE VERSION
IMPROPER 9911 The Ground Module determines that the LSS software version is not
compatible with existing code. The Ground Module sets the
Platform Load State to Over-
loaded Cycle power to clear the fault.
CHASSIS TILT SENSOR NOT
GAIN CALIBRATED 9915 The tilt sensor gain calibration values recorded to flash memory dur-
ing manufacturing are not present The Ground Module reports a
faulted chassis tilt angle of 90
degrees Valid values must be present to
reset.
GROUND SENSOR REF VOLT-
AGE OUT OF RANGE 9919 The Ground Module has detected reference voltage is out of range
(Reference Voltage is between 2.3V and 2.7V). If MACHINE SETUP  Kubota
D1105 and ENGINE SHUTDOWN
 ENABLED, then call for
engine shutdown and disable
engine start operations; other-
wise, no interlocks required.
Cycle power to clear the fault.
PLATFORM SENSOR REF VOLT-
AGE OUT OF RANGE 9920 The Platform Module detects that its reference voltage is out of range
and reports the fault to the Ground Module If in Platform mode, Lift/Swing
and Drive are placed in Creep.
All other functions shall oper-
ate normally. Cycle power to clear the fault.
GROUND MODULE FAIL-
URE:HIGH SIDE DRIVER CUT-
OUT FAULTY 9921 The engine is not running
The engine is not cranking
The Ground Module footswitch input (J7-15) is LOW
The machine is in Platform Mode
The Main Dump output (J2-13) is detected as HIGH via the analog
feedback 300ms after it is attempted to be activated during the one
time startup test of the Ground Module hardware shutoff circuitry All Drive/Steer and Boom func-
tions except Tower Lift Down,
Lift Down, and Jib Lift Down are
disabled. Cycle power to clear the fault.
PLATFORM MODULE FAILURE:
HWFS CODE 1 9922 The Platform Module detects faulty hardware No response required. Cycle power to clear the fault; if
faults remains, replace board.
GROUND MODULE FAILURE:
HWFS CODE 1 9923 The Ground Module detects faulty hardware. No response required. Cycle power to clear the fault; if
faults remains, replace board.
Table 6-5. Fault Code Troubleshooting Information
Help Message DTC Condition Producing DTC
Control System Response or
Machine Condition
Corrective Action/
Operational Requirement
for Function Movement
and/or to Clear Fault