JLG 450A_AJ Series II Service Manual User Manual
Page 398
SECTION 6 - JLG CONTROL SYSTEM
6-62
– JLG Lift –
3121180
3/3
Flash code 3/3 indicates a driver problem. All driver faults are detected in
a similar manner. Open circuit faults are detected when analog feedback
reads too high and output is commanded off. Short to ground is detected
when analog feedback reads low and output is commanded on. Short to
battery is detected when analog feedback reads Vbat and output is
commanded off. Not reported during 2 second power-up. An EMS cycle
is required.
6
RIGHT FORWARD DRIVE PUMP
SHORT TO GROUND
Machines with a chassis module ONLY.
RIGHT FORWARD DRIVE PUMP
SHORT TO BATTERY
Machines with a chassis module ONLY.
RIGHT FORWARD DRIVE PUMP
OPEN CIRCUIT
Machines with a chassis module ONLY.
RIGHT REVERSE DRIVE PUMP
SHORT TO GROUND
Machines with a chassis module ONLY.
RIGHT REVERSE DRIVE PUMP
SHORT TO BATTERY
Machines with a chassis module ONLY.
RIGHT REVERSE DRIVE PUMP OPEN
CIRCUIT
Machines with a chassis module ONLY.
LEFT FORWARD DRIVE PUMP
SHORT TO GROUND
Machines with a chassis module ONLY.
LEFT FORWARD DRIVE PUMP
SHORT TO BATTERY
Machines with a chassis module ONLY.
LEFT FORWARD DRIVE PUMP OPEN
CIRCUIT
Machines with a chassis module ONLY.
LEFT REVERSE DRIVE PUMP SHORT
TO GROUND
Machines with a chassis module ONLY.
LEFT REVERSE DRIVE PUMP SHORT
TO BATTERY
Machines with a chassis module ONLY.
LEFT REVERSE DRIVE PUMP OPEN
CIRCUIT
Machines with a chassis module ONLY.
ALTERNATOR/ECM POWER SHORT
TO GROUND
HOUR METER SHORT TO GROUND
HOUR METER SHORT TO BATTERY
HORN SHORT TO GROUND
HORN OPEN CIRCUIT
HORN SHORT TO BATTERY
AUX POWER SHORT TO GROUND
AUX POWER OPEN CIRCUIT
AUX POWER SHORT TO BATTERY
GLOW PLUG SHORT TO GROUND
Machines with glowplugs configured ONLY.
GLOW PLUG OPEN CIRCUIT
Machines with glowplugs configured ONLY
GLOW PLUG SHORT TO BATTERY
Machines with glowplugs configured ONLY
LP LOCK SHORT TO GROUND
Machines with dual-fuel engines ONLY.
LP LOCK OPEN CIRCUIT
Machines with dual-fuel engines ONLY.
Table 6-8. Help Fault Codes, Displayed Faults, and Descriptions - S/N 0300066949 & S/N 1300000001 to Present
Fault Flash
Code
Communicated (Displayed on
Analyzer) Fault
Description
Priority