JLG 18RS Service Manual - Manual (Page 190)

SECTION 6 - JLG CONTROL SYSTEM
6-48 – JLG Lift – 3121284
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.
JIB LIFT UP VALVE – SHORT TO
BATTERY 3416 The Platform Module detects a short to battery at the Jib Lift Up Valve
output and reports it to the Ground Module. Jib Lift Up and Flow Control
Valve outputs are disabled; Jib
Lift Down 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.
JIB LIFT UP VALVE – SHORT TO
GROUND 3417 The Platform Module detects a short to ground at the Jib Lift Up Valve
output and reports it to the Ground Module. Jib Lift Up output is disabled;
Jib Lift 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.
JIB LIFT DOWN VALVE – OPEN
CIRCUIT 3418 The Platform Module detects an open circuit at the Jib Lift Down
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 6-5. 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