JLG 3248RS/10RS Service Manual - Manual (Page 117)

SECTION 6 - DIAGNOSTIC TROUBLE CODES
3121273 – JLG Lift – 6-7
2-3 Ground Controls
DTC FAULT MESSAGE DESCRIPTION CHECK
231 FUNCTION PROBLEM - LIFT
PERMANENTLY SELECTED Lift Switch (Up or Down) in the Ground
Control Box was closed during power-
up. • Release or repair the switch to clear the message.
• Check if the lift switch is obstructed or jammed.
• Check the lift switch signal and wiring. The lift switch outputs
(24V when closed) are to ground board terminals J1-27, J1-10
(up and down).
• Replace ground board.
• HEALTH (Status LED) - ON
232 GROUND LIFT UP / DOWN
ACTIVE TOGETHER In Ground Mode, the control system has
detected the Lift Up and Down are active
simultaneously • Check the Lift Switch and associated wiring in the Ground Control
Box.
• Check if the lift switch is obstructed or jammed.
• Check the lift switch signal and wiring to the ground board. The lift
switch outputs (24V when closed) to ground board terminals J1-
27 (up), J1-10 (down).
• Replace ground board.
• HEALTH (Status LED) - ON
233 FUNCTION PROBLEM -
BRAKE RELEASE PERMA-
NENTLY SELECTED The manual brake release switch was
closed during power-up. • Release or repair the switch to clear the message
• Check if the brake release switch is obstructed or jammed.
• Check the brake release switch signal and wiring to the ground
board. The brake release switch input (24V) is from ground board
terminal J1-31, and its output (24V when closed) is to ground
board terminal J1-25.
• If the brakes are released, the machine can be pushed or moved
without drive motor power.
• Replace ground board.
• HEALTH (Status LED) - ON
2-5 Function Prevented
DTC FAULT MESSAGE DESCRIPTION CHECK
253 DRIVE PREVENTED - CHAR-
GER CONNECTED Driving is not possible while the vehicle
is charging and it is configured to only
allow lifting. • Check if the charger is connected to off board power source and
disconnect if desired.
• Check ANALYZER -> MACHINE SETUP -> CHARGER INTER-
LOC is set as desired.
• Check that charger's red (positive) battery wire connector termi-
nal is receiving power (24V) from batteries.
• Check signal from charger interlock connector terminal 2 to
ground board terminal J1-26, where 0VDC indicates charging in
process.
• HEALTH (Status LED) - ON
254 DRIVE & LIFT UP PREVENTED
- CHARGER CONNECTED Drive or lift is not possible while the
vehicle is charging and is configured to
prevent all motion. • Check if the charger is connected to off board power source and
disconnect if desired.
• Check ANALYZER -> MACHINE SETUP -> CHARGER INTER-
LOC is set as desired. (Must be in ACCESS LEVEL 1 to change.)
• Check that charger's red (positive) battery wire connector termi-
nal is receiving power (24V) from batteries.
• Check signal from charger interlock connector terminal 2 to
ground board terminal J1-26, where 0VDC indicates charging in
process.
• HEALTH (Status LED) - ON