JLG 340AJ, Service And Maintenance Manual

Page: 332 / 370

SECTION 6 - JLG CONTROL SYSTEM
6-86 – JLG Lift – 3121259
FRONT LEFT STEER VALVE –
SHORT TO GROUND 8641 The Ground Module detects a short to ground at the Front Left Steer
Valve output. The Ground Module disables
the Steer Left and Right out-
puts. Cycle power to clear the fault.
FRONT RIGHT STEER VALVE –
OPEN CIRCUIT 8642 The Ground Module detects an open circuit at the Front Right Steer
Valve output. Steer Left and Right speed is
limited to Creep Cycle power to clear the fault.
FRONT RIGHT STEER VALVE –
SHORT TO BATTERY 8643 The Ground Module detects a short to battery at the Front Right Steer
Valve output. The Ground Module disables
the Drive Forward/Reverse and
Steer Left/Right outputs Cycle power to clear the fault.
FRONT RIGHT STEER VALVE –
SHORT TO GROUND 8644 The Ground Module detects a short to ground at the Front Right Steer
Valve output. The Ground Module disables
the Steer Left and Right out-
puts Cycle power to clear the fault.
OSCILLATING AXLE SWITCH
DISAGREEMENT 8669 The Ground Module detects that Oscillating Axle switch #1 and
switch #2 are not in agreement. Note: This fault will not to be
reported if DTC 23104 BOOM TRANSPORT SWITCH DISAGREEMENT is
active. The Ground Module assumes
an Above Elevation State and
de-energizes J1-7 Oscillating
Axle output. Cycle power to clear the fault.
FUNCTIONS LOCKED OUT 9911
LSS WATCHDOG RESET 991 The Ground Module detects an LSS report of an anomaly that has
caused a WatchDog Timer reset. The Ground Module sets the
Platform Load State to Over-
loaded Cycle power to clear the fault.
LSS EEPROM ERROR 992 The Ground Module detects an LSS report of an anomaly that exists in
the LSS EEPROM The Ground Module sets the
Platform Load State to Over-
loaded Cycle power to clear the fault.
LSS INTERNAL ERROR – PIN
EXCITATION 993 The Ground Module detects an LSS report of improper excitation
voltage. The Ground Module sets the
Platform Load State to Over-
loaded Cycle power to clear the fault.
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.
Table 6-15. 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