JLG 3246ES Service Manual - Manual (Page 136)

SECTION 5 - JLG CONTROL SYSTEM
5-16 – JLG Lift– 3121166
3 3 STEER LEFT OPEN CIRCUIT
Current flow to the steer left solenoid was not detected during
power-up.
Left Turn INPUT driven High (momentarily) AND Left Turn STAT
detected Low during power-up.
Drive & Steer Prevented.
3 3 STEER RIGHT SHORT TO BATTERY
Voltage was detected on the steer right solenoid when the out-
put driver was commanded off during power-up.
Right Turn INPUT driven Low AND Right Turn STAT detected
Low during power-up.
Drive & Steer Prevented.
3 3 STEER RIGHT OPEN CIRCUIT
Current flow to the steer right solenoid was not detected dur-
ing power-up.
Right Turn INPUT driven High (momentarily) AND Right Turn
STAT detected Low during power-up.
Drive & Steer Prevented.
3 3 GROUND OVERLOAD LAMP SHORT TO BATTERY
While the load sensing system was enabled, voltage was
detected on the ground control box’s overload lamp when the
output driver was commanded off during power-up.
Ground Overload INPUT driven Low AND Ground Overload STAT
detected Low during power-up AND [Machine Setup’s LOAD
set to 1=CUTOUT PLT OR 2=CUTOUT ALL].
No motion interlocks.
3 3 GROUND OVERLOAD LAMP OPEN CIRCUIT
While the Load Sensing System was enabled, current flow to
the ground control box’s overload lamp was not detected dur-
ing power-up.
Ground Overload INPUT driven High (momentarily) AND
Ground Overload STAT detected Low during power-up AND
[Machine Setup’s LOAD set to 1=CUTOUT PLT OR 2=CUTOUT
ALL].
No motion interlocks.
3 3
GROUND ALARM SHORT TO BATTERY
While enabled, voltage was detected on the ground alarm
when the output driver was commanded off during power-up.
Ground Alarm INPUT driven Low AND Ground Alarm STAT
detected Low during power-up AND [Machine Setup’s
GROUND ALARM set to 1=DECENT OR 2=MOTION].
No motion interlocks.
3 3 LEFT BRAKE SHORT TO BATTERY
The ground board detected voltage while the left brake was
commanded off.
Check for continuity through
this circuit. Inspect the wiring
for physical damage.
Replace ground board.
3 3 LEFT BRAKE OPEN CIRCUIT
Current flow to the left brake solenoid was not detected during
normal left brake operation.
Check for continuity through
this circuit. Inspect the wiring
for physical damage.
Replace ground board.
3 3 RIGHT BRAKE SHORT TO BATTERY
Voltage was detected on the right brake solenoid when the
ground board output was commanded off during power-up.
Check for continuity through
this circuit. Inspect the wiring
for physical damage.
Replace ground board.
Table 5-2. Flash Code Listing
Flash
Code
Help Message Cause Possible Resolve