JLG 24RS Service Manual - Manual (Page 217)

SECTION 6 - JLG CONTROL SYSTEM
3121287 – JLG Lift – 6-41
STEER DUMP VALVE – SHORT
TO BATTERY 3367 The Ground Module detects a short to battery at the Steer Dump
Valve output. Ground Module Steer Dump,
Steer, and Flow Control outputs
are disabled; Steer, Tele In/Out,
Level Up/Down, and Rotate
Left/Right functions are disal-
lowed. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
GEN SET/WELDER – SHORT TO
GROUND 3373 The Ground Module detects a short to ground at the Gen Set/Welder
output. Ground Module Generator relay
output is disabled thereby dis-
abling generator functionality. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
GEN SET/WELDER – OPEN CIR-
CUIT 3374 The Ground Module detects an open circuit at the Gen Set/Welder
output. No response required. Check for a good connection at
the relay and for continuity
through this circuit. With the
relay disconnected, an open
circuit voltage of nearly 8.0V
exists on the Ground Module
output pin for diagnostic pur-
poses. Inspect wiring for physi-
cal damage. Cycle power to
clear the fault.
GEN SET/WELDER – SHORT TO
BATTERY 3375 The Ground Module detects a short to battery at the Gen Set/Welder
output. The Ground Module Generator
relay output is disabled, but the
Ground Module considers the
Generator always enabled and
restricts engine speed to Gen-
erator RPM. If MACHINE SETUP
 GENSET CUTOUT = MOTION
CUTOUT, disregard cutout and
permit motion. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
HOUR METER – SHORT TO
GROUND 3379 The Ground Module detects a short to ground at the Hourmeter out-
put. Ground Module Hourmeter
output is disabled. Inspect wiring for physical
damage and check for wire
continuity. Confirm high resis-
tance reading across hourme-
ter. Cycle power to clear the
fault.
HOUR METER – SHORT TO
BATTERY 3381 The Ground Module detects a short to battery at the Hourmeter out-
put. Ground Module Hourmeter
output is disabled. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
PLATFORM LEVEL UP VALVE –
SHORT TO GROUND 3382 The Ground Module detects a short to ground at the Platform Level
Up Valve output. Ground Module Platform Level
Up is disabled; Level Down
speed is limited to Creep. Inspect wiring for physical
damage and check for wire
continuity. Check for coil dam-
age or shorting condition in
connector. Cycle power to clear
the fault.
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