JLG 340AJ Service Manual - Manual (Page 294)

SECTION 6 - JLG CONTROL SYSTEM
6-50 – JLG Lift – 3121259
BRAKE – SHORT TO GROUND 3361 The Ground Module detects a short to ground at the Brake output. Ground Module Drive/Steer
and Brake outputs are disabled. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
START SOLENOID – SHORT TO
GROUND 3362 The Ground Module detects a short to ground at the Engine Starter
Solenoid. Engine Start attempt is not per-
mitted. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
START SOLENOID – OPEN CIR-
CUIT 3363 Ground Module detects an open circuit at this output; if machine is
equipped with a Dual Fuel ECU, ground module will only evaluate for
open circuit conditions until first Start is attempted for each power
cycle due to possibility of ECU opening ground solenoid return path
to disable Start and causing erroneous diagnostics. No response required. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
START SOLENOID – SHORT TO
BATTERY 3364 The Ground Module detects a short to battery at the Engine Starter
Solenoid. Ground Module Engine Start is
disabled by de-energizing the
Fuel Actuator (Kubota) or send-
ing an Engine Shutdown com-
mand (Dual Fuel ECU) Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
STEER DUMP VALVE – SHORT
TO GROUND 3365 The Ground Module detects a short to ground at the Steer Dump
Valve output. Ground Module Steer Dump
output is disabled. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
STEER DUMP VALVE – OPEN
CIRCUIT 3366 The Ground Module detects an open circuit at the Steer Dump Valve
output. No response required. Check for a good connection at
the solenoid and for continuity
through this circuit. With the
solenoid disconnected, an
open circuit voltage of nearly
8.0V exists on the Ground Mod-
ule output pin for diagnostic
purposes. Inspect wiring for
physical damage. Cycle power
to clear the fault.
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,
Jib Up (permitted if operating
in Emergency Descent mode),
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.
Table 6-10. 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