Function Prevented; Line Contactor Open Circuit - JLG TOUCAN 8E Service And Maintenance Manual

SECTION 10 - DIAGNOSTIC TROUBLE CODES

2-5 Function Prevented

DTC FAULT MESSAGE
259 MODEL CHANGED - HYDRAU-
LIC SUSPENDED - CYCLE EMS
2516 DRIVE PREVENTED - ABOVE
ELEVATION
2538 FUNCTION PREVENTED -
CHARGER CONNECTED
2542 FUNCTION PREVENTED -
BRAKES ELECTRONICALLY
RELEASED FOR TOWING
2543 FUNCTION PREVENTE -
CHAIN SLACK DETECTED
2544 ALL FUNCTIONS PREVENTED
- FAULTY MASTER VALVE
ENABLE
2545 ALL FUNCTIONS PREVENTED
- FAULTY SLAVE VALVE
ENABLE
2548 (SYSTEM TEST MODE)
SYSTEM TEST MODE ACTIVE

3-1 Line Contactor Open Circuit

DTC FAULT MESSAGE
311 OPEN CIRCUIT LINE CONTAC-
TOR
312 CONTACTOR DRIVER PER-
MANENTLY OFF
10-8
DESCRIPTION
The model selection has been changed.
DRIVE CUTOUT set to 1 (YES), and the
mast is elevated.
Functions are prevented while the vehicle
is charging.
Manual brake release mode is activated.
Drive or lift is not possible.
Slack was detected in the mast chain.
The valve enable input on the Master con-
troller is not energized : no outputs can be
operated from the Master controller.
The valve enable input on the Slave con-
troller is not energized : no outputs can be
operated from the Slave controller.
The system is in test mode.
DESCRIPTION
The line contactor is not closing the power
circuit properly.
The line contactor driver is out of order.
– JLG Lift –
CHECK
• Check ANALYZER->MACHINE SETUP->MODEL.
• Refer to §9 for adapted personality settings and
calibration.
• Fully stow the platform.
• Check if the charger is connected to off board
power source and disconnect if desired.
• Check interlock relay wiring :
@+Vbatt when the machine is not charging :
CR26(2), CR2(16).
• Push manual brake release switch again or cycle
power to clear manual brake release mode.
• Check if the brake release switch is damaged,
obstructed or jammed.
• Check the switch line voltage : J3(12), CR1(34) and
CR2(17).
• Refer to section 4 for the required operations to
clear the fault.
• Check if the Chain Slack limit switches are dam-
aged, obstructed or jammed.
• Check the chain slack switches wiring :
@+Vbatt : CR27(2), CR6(2), CR2(35), CR3(35).
Check the wiring of the input : CR2(3) must be at
+Vbatt when one of the control console is energized.
Check the wiring of the input : CR3(3) must be at
+Vbatt when one of the control console is energized.
• Cycle power to clear test mode.
CHECK
• Check the power connections of the line contactor
to the battery
• Check the power connections of the line contactor
to the power controllers
• Check the line contactor [KM] coil wiring :
@-Vbatt : CR19(2), CR17(6), CR2(8).
@+Vbatt : CR19(1), CR17(8), CR1(25).
• Check the line contactor coil.
• Replace the line contactor.
• Replace the Master controller.
31210090