SECTION 6 - DIAGNOSTIC TROUBLE CODES
3121273
– JLG Lift –
6-5
6.5 DTC CHECK TABLES
0-0 Help Comments
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
001
EVERYTHING OK
The normal help message in platform
mode. Displays on the analyzer only.
• HEALTH (Status LED) - ON
002
GROUND MODE OK
The normal help message in ground
mode. Displays on the analyzer only.
• HEALTH (Status LED) - ON
003
ALARM SOUNDING - TILTED
& ABOVE ELEVATION
(CE ONLY)
Control system senses that the platform
is elevated and the vehicle is tilted.
• Check that the machine is tilted. If so, lower the platform and
reposition the machine to a level surface.
• Fully stow the platform.
• The tilt sensor is mounted inside the left side chassis cover.
Check that the tilt sensor is secured to the machine.
• Check that the elevation angle sensor is securely mounted.
• Backprobing ground board J1-18 should show about 0 volts.
• Backprobing ground board J1-10 should show about 0 volts.
• Adjust the tilt sensor, see Section 5.2.
• HEALTH (Status LED) - ON
004
DRIVING AT CUTBACK -
ABOVE ELEVATION
The platform is elevated and the
machine is driving in creep speed.
• Fully stow the platform.
• Check that the elevation angle sensor is securely mounted.
• Check the lift/drive switch.
• Backprobing ground board J1-18 should show about 24 volts.
• Backprobing ground board J1-19 should show about 0 volts.
• HEALTH (Status LED) - ON
005
DRIVE & LIFT UP PREVENTED
- TILTED & ELEVATED
Driving is not possible since the plat-
form is elevated and the chassis is not
level.
• Check that the machine is tilted. If so, lower the platform and
reposition the machine to a level surface.
• Fully stow the platform.
• The tilt sensor is mounted inside the left side chassis cover.
Check that the tilt sensor is secured to the machine.
• Check that the elevation angle sensor is securely mounted.
• Backprobing ground board J1-18 should show about 24 volts.
• Backprobing ground board J1-19 should show about 0 volts.
• Adjust the tilt sensor, see Section 5.2.
• HEALTH (Status LED) - ON
008
FUNCTIONS LOCKED OUT -
SYSTEM POWERED DOWN
A period of time elapsed without activity
and the Control System entered a low-
power state to preserve battery charge
(2 hours).
• Cycle the Ground EMS in Ground Mode or the Platform EMS in
Platform Mode to re-enable the vehicle.
• HEALTH (Status LED) - ON
2-1 Power-Up
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
211
POWER CYCLE
This help message is issued at each
power cycle. Displays on the analyzer
only.
• Normal operation. No check necessary.
• HEALTH (Status LED) - ON
2-2 Platform Controls
DTC
FAULT MESSAGE
DESCRIPTION
CHECK
221
FUNCTION PROBLEM -
HORN PERMANENTLY
SELECTED
The horn switch was closed during
power-up in platform mode.
• Check if the horn switch is damaged, obstructed or jammed.
• HEALTH (Status LED) - ON