JLG 340AJ Service Manual - Manual (Page 304)

SECTION 6 - JLG CONTROL SYSTEM
6-60 – JLG Lift – 3121259
OSCILLATING AXLE VALVES –
SHORT TO GROUND 33424 The Ground Module detects a short to ground condition on the J1-7
output. The Ground Module to assumes
an Above Elevation State and
de-energizes J1-7 Oscillating
Axle output. Inspect wiring for physical
damage and check for wire
continuity. Check for shorting
condition in connector. Cycle
power to clear the fault.
TOWER LIFT VALVES – SHORT
TO BATTERY 33425 The Ground Module detects a short to battery at either the Tower Lift
Up or Tower Lift Down valve. Ground Module Tower Lift Up
and Down outputs are disabled
and open the ground current
return path. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
PLATFORM ROTATE LEFT
VALVE – OPEN CIRCUIT 349 The Platform Module detects an open circuit at the Platform Rotate
Left Valve output and reports it to the Ground Module. Platform Rotate speed is lim-
ited to Creep Check for a good connection at
the solenoid and for continuity
through this circuit. Inspect
wiring for physical damage.
Cycle power to clear the fault.
PLATFORM ROTATE LEFT
VALVE – SHORT TO BATTERY 3410 The Platform Module detects a short to battery at the Platform
Rotate Left Valve output and reports it to the Ground Module. Platform Module are disabled
for Platform Rotate Right,
Rotate Left, and Flow Control
Valve outputs are disabled. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
PLATFORM ROTATE LEFT
VALVE – SHORT TO GROUND 3411 The Platform Module detects a short to ground at the Platform
Rotate Left Valve output and reports it to the Ground Module. Platform Rotate Right and Left
outputs are disabled. 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.
PLATFORM ROTATE RIGHT
VALVE – OPEN CIRCUIT 3412 The Platform Module detects an open circuit at the Platform Rotate
Right Valve output and reports it to the Ground Module. Platform Rotate speed is lim-
ited to Creep Check for a good connection at
the solenoid and for continuity
through this circuit. Inspect
wiring for physical damage.
Cycle power to clear the fault.
PLATFORM ROTATE RIGHT
VALVE – SHORT TO BATTERY 3413 The Platform Module detects a short to battery at the Platform
Rotate Right Valve output and reports it to the Ground Module. Platform Rotate Right, Rotate
Left, and Flow Control Valve
outputs. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
PLATFORM ROTATE RIGHT
VALVE – SHORT TO GROUND 3414 The Platform Module detects a short to ground at the Platform
Rotate Right Valve output and reports it to the Ground Module. Platform Rotate Right and Left
outputs are disabled. 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.
JIB LIFT UP VALVE – OPEN CIR-
CUIT 3415 The Platform Module detects an open circuit at the Jib Lift Up Valve
output and reports it to the Ground Module. Jib Lift speed is limited to Creep. Check for a good connection at
the solenoid and for continuity
through this circuit. Inspect
wiring for physical damage.
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