JLG 450A_AJ Series II Service Manual - Manual (Page 207)

SECTION 3 - CHASSIS & TURNTABLE
3121180 – JLG Lift – 3-157
Fault/Diagnostic Trouble Code Interaction
All fault and diagnostic information is managed through
the Faults page. Interaction includes viewing fault mes-
sages, downloading fault data (fault snapshot and flight
data recorder), erasing faults from memory, and defining
variables for fault data logging.
Faults are separated into two categories, Active and His-
toric. Active faults are active in real-time and historic faults
have been generated at some instance in time that may or
may not be active in real-time. Once a fault has become
active, it is immediately logged as historic and a snapshot
and flight data log is saved. Figure 3-97. shows an exam-
ple of the fault page when an active fault has been gener-
ated. Notice fault is present in active and historic lists and
the Malfunction Indicator Lamp (MIL) has been illumi-
nated. Figure 3-98. shows an example of the fault page
with a historic fault stored in memory.
Figure 3-97. Faults Page with Active Fault Message
Base Fault snapshot
variable definitions
(CAN NOT be altered)
Custom Fault Snapshot
variable definitions (User
Defined)
Base Flight Data
Recorder variable
definitions (CAN
NOT be altered)
Custom Flight Data
Recorder variable
definitions (User Defined)