JLG 340AJ, Руководство по обслуживанию и ремонту

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SECTION 6 - JLG CONTROL SYSTEM
3121259 – JLG Lift – 6-67
HEAD TAIL LIGHT – SHORT TO
BATTERY 3378 The Ground Module detects a short to battery at the Head-Tail Light
output. Disable Ground Module H&T
Light relay output is disabled. 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.
PLATFORM LEVEL UP VALVE –
OPEN CIRCUIT 3383 The Ground Module detects an open circuit at the Platform Level Up
Valve output. Platform Level 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.
PLATFORM LEVEL UP VALVE –
SHORT TO BATTERY 3384 The Ground Module detects a short to battery at the Platform Level
Up Valve output. Ground Module Platform Level
Up, Level Down, and Flow Con-
trol Valve outputs are disabled. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
PLATFORM LEVEL DOWN
VALVE – SHORT TO GROUND 3388 The Ground Module detects a short to ground at the Platform Level
Down Valve output. Ground Module Platform Level
Up and Down valve 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 LEVEL DOWN
VALVE – OPEN CIRCUIT 3389 The Ground Module detects an open circuit at the Platform Level
Down Valve output. Platform Level 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.
PLATFORM LEVEL DOWN
VALVE – SHORT TO BATTERY 3390 The Ground Module detects a short to battery at the Platform Level
Down Valve output. Ground Module Platform Level
Up, Level Down, and Flow Con-
trol Valve outputs are disabled. Inspect wiring for physical
damage and check for wire
continuity. Cycle power to clear
the fault.
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