JLG 3246ES Service Manual - Manual (Page 173)

SECTION 6 - DIAGNOSTIC TROUBLE CODES
3121166 – JLG Lift – 6-21
9911 FUNCTION LOCKED
OUT - LSS MODULE
SOFTWARE VERSION
IMPROPER
The load sensing system mod-
ule software version is not com-
patible with the rest of the
system. • Replace LSS module to clear fault.
9912 POWER MODULE FAIL-
URE - SYSTEM MONITOR
The ground board detected
armature, field, or pump current
while function was not com-
manded. • Refer to Drive Motor Electrical Evaluation in Section
3.5.
• Refer to Pump Motor Electrical Evaluation in Section
4.8.
• Refer to Power Module Electrical Evaluation in Sec-
tion 3.6.
9917 HIGH RESOLUTION
ANALOG TO DIGITAL
FAILURE - INTERRUPT
LOST
The ground board detected
armature, field, or pump current
while function was not com-
manded. • Pump Motor being turned backwards by a faulty
check valve in the hydraulic system.
• Software issue on the controller. Update software.
9924 FUNCTIONS LOCKED
OUT - MACHINE NOT
CONFIGURED
The control system's memory
indicates that the vehicle has
not been configured (new con-
trol system components). • Use the JLG analyzer to adjust all machine setup and
personality settings, refer to 5.7 Machine Configura-
tion Programming Information.
9950 POWER MODULE FAIL-
URE - INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s armature power circuitry is
driven without PWM command for 100mS.
• Cycle machine, if error still exists, replace System
Module.
• ZAPI - HEALTH (Status LED) - FLASHING
9951 POWER MODULE FAIL-
URE - INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s pump power circuitry is driven
without enable from the interface PCB for 100mS.
• Cycle machine, if error still exists, replace System
Module.
• ZAPI - HEALTH (Status LED) - FLASHING
9952 POWER MODULE FAIL-
URE - INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s pump power circuitry is driven
without PWM command for 100mS.
• Cycle machine, if error still exists, replace System
Module.
• ZAPI - HEALTH (Status LED) - FLASHING
9953 POWER MODULE FAIL-
URE - INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s field power circuitry is driven
without enable from the interface PCB for 100mS.
• Cycle machine, if error still exists, replace System
Module.
• ZAPI - HEALTH (Status LED) - FLASHING
9954 POWER MODULE FAIL-
URE - INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s field power circuitry is driven
without reverse direction from the power PCB for
100mS.
• Cycle machine, if error still exists, replace System
Module.
• ZAPI - HEALTH (Status LED) - FLASHING
9955 POWER MODULE FAIL-
URE - INTERNAL ERROR
Drive, Steer, & Lift Prevented • The System Module’s field power circuitry is driven
without forward selection from the power PCB for
100mS.
• Cycle machine, if error still exists, replace System
Module.
• ZAPI - HEALTH (Status LED) - FLASHING
9-9 Hardware
DTC FAULT MESSAGE DESCRIPTION CHECK