JLG R4045 Operation And Safety Manual page 119

DTC Help Message
DRIVE PREVENTED – POTHOLE NOT
ENGAGED
256
TEMPERATURE CUTOUT ACTIVE - AMBIENT
TEMPERATURE TOO LOW
2568
POWER MODULE TOO HOT - PLEASE WAIT
421
POWER MODULE TOO HOT - REDUCED OPER-
ATION
4235
31215942
SECTION 6 - GENERAL SPECIFICATIONS AND MAINTENANCE
Flash
Alarm
Code
PF: 500ms On/ 2_5 • DriveState = PREVENTED
500ms Off
GND: 500ms On/
500ms Off
If TransportMode 2_5 • Drive and Lift Restrictions
= TRUE PF: Con-
tinuous
If TransportMode
= FALSE PF: OFF
None 4_2 • DriveState = PREVENTED
• LiftUpState = PREVENTED
None 4_2 • DriveState =CREEP
• LiftUpState = CREEP
Action
• While elevated, driving is not possible since the control system
detected that the pot-hole protection mechanism failed to deploy.
Clear the obstacle blocking the pot-hole protection mechanism,
repair the mechanical problem, re-adjust the pot-hole limit
switches, or repair the wiring to correct the problem.
• Alternately, there may be difficulty with the Elevation Angle Sensor
that causes the Control System to improperly believe the platform is
elevated.
• The temperature as communicated by the temperature sensor
located on the temperature/tilt sensor is less than or equal to {PER-
SONALITIES->TEMP CUTOUT->CUTOUT SET}
• (See Low Temperature Cutout Functionality)
• This DTC shall not be displayed in GroundMode, and no restrictions
shall be implemented.
• Heatsink temperature above 203°F (95° C).
• Possible Cause:
• Controller is operating in an extreme environment.
• Excessive load on vehicle.
• Improper mounting of controller
• Heatsink temperature exceeded 185° F (85° C).
• Effect: Reduced drive and brake torque.
• Possible Cause:
• Controller is performance-limited at this temperature.
• Controller is operating in an extreme environment.
• Excessive load on vehicle
• Improper mounting of controller.
Trigger
6-27