Oshkosh Corporation JLG 450AJ, Руководство по обслуживанию и ремонту

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SECTION 6 - JLG CONTROL SYSTEM
3121659 – JLG Lift – 6-49
START SOLENOID – SHORT TO
BATTERY 3364 UGM detects a short to battery at this output Disable UGM Engine Start by
deenergizing Fuel Actuator
(Kubota) or sending Engine
Shutdown command (CAN-
based ECUs) Power Cycled
STEER DUMP VALVE – SHORT
TO GROUND 3365 The UGM detects a short to ground at this output The UGM shall prohibit Steer
Dump Power Cycled
TWO SPEED VALVE - SHORT TO
GROUND 3368 The UGM detects a short to ground at this output Disable UGM 2 Speed output.
If in Max Speed drive mode,
switch to Max Torque; disable
Max Speed drive mode Power Cycled
TWO SPEED VALVE - OPEN CIR-
CUIT 3369 The UGM detects an open circuit at this output If in Max Speed drive mode,
switch to Max Torque; disable
Max Speed drive mode Power Cycled
TWO SPEED VALVE - SHORT TO
BATTERY 3370 The UGM detects a short to battery at this output If in Max Speed drive mode,
switch to Max Torque; disable
Max Speed drive mode. Ramp
and limit drive speed to Creep
value for associated drive
mode:
The UGM shall disable Drive
when the Boom is Above Ele-
vation. Power Cycled
GEN SET/WELDER – SHORT TO
GROUND 3373 MACHINE SETUP > GEN SET = BELT DRIVE and the UGM detects
a short to ground at this output Disable UGM Generator out-
put. Do not Enable generator
functionality or set Engine to
Generator RPM. Power Cycled
GEN SET/WELDER – OPEN CIR-
CUIT 3374 MACHINE SETUP > GEN SET = BELT DRIVE and the UGM detect
an open circuit at this output No response required for this
DTC Power Cycled
GEN SET/WELDER – SHORT TO
BATTERY 3375 MACHINE SETUP > GEN SET = BELT DRIVE and the UGM detects
a short to battery at this output Disable UGM Generator out-
put, but UGM shall consider
Generator always excited
(enabled) and restrict engine
to Generator RPM. If
MACHINE SETUP > GENSET
CUTOUT = MOTION CUTOUT,
disregard cutout and permit
motion. Power Cycled
HEAD TAIL LIGHT – SHORT TO
GROUND 3376 MACHINE SETUP > H & T LIGHTS =YES and the UGM detects a
short to ground at this output Disable UGM H&T Light relay
output Power Cycled
HEAD TAIL LIGHT – OPEN CIR-
CUIT 3377 MACHINE SETUP > H & T LIGHTS =YES and the UGM detects an
open circuit at this output No response required for this
DTC Power Cycled
HEAD TAIL LIGHT – SHORT TO
BATTERY 3378 MACHINE SETUP > H & T LIGHTS =YES and the UGM detects a
short to battery at this output Disable UGM H&T Light relay
output Power Cycled
Table 6-5. Diagnostic Trouble Code Chart
Help Message DTC
Fault Condition/Trigger
(For configurable items, fault applies only if
configured. All listed conditions to be met unless
stated otherwise)
Required Control
Response or State
Assignment
Conditions Required for Movement
and/or to Clear Fault