JLG 1930ES Service Maintenance Manual page 138

SECTION 5 - JLG CONTROL SYSTEM
FLASH
HELP MESSAGE
CODE
Help messages with the 6-6 flash code indicate vehicle communication (CANbus) problems. These faults shall not be latched. Nor-
6 6 CANBUS FAILURE: POWER MODULE
6 6 CANBUS FAILURE: PLATFORM MODULE
6 6 CANBUS FAILURE: LOAD SENSING SYSTEM
MODULE
6 6 ACCESSORY CAN COMMUNICATION LOST
Help messages with the 6-7 flash code indicate JLG accessory problems. These faults shall not be latched. Normal operation shall
6 7 ACCESSORY FAULT
7 7 OPEN-CIRCUIT DRIVE MOTOR FIELD WIRING
5-18
Table 5-2. Flash Code Listing
mal operation shall resume if difficulty is resolved.
The control system failed to receive messages from the
Power Module.
Power Module Message – Status (0x24) not received for
1000mS or Power Module is reported a "CANbus Bus Diffi-
culty" Fault Code (0x09).
Drive, Steer, & Lift Up Prevented.
In Platform Mode, the control system failed to receive mes-
sages from the platform module.
Digital Input Message – Motion (0x00) not received for
1000mS AND Platform Mode selected. Retained until
power is re-cycled.
All Platform functions Prevented. Normal operation from
Ground Mode.
With the Load Sensing System enabled, the control system
failed to receive messages from the Load Sensing System
Module.
LSS Module Message – Load Cell Message (0x80) not
received for 1000mS AND [Machine Setup's LOAD set to
1=CUTOUT PLT OR 2=CUTOUT ALL]. Retained until
power is re-cycled.
Vehicle assumed to be Overloaded.
A JLG Accessory Module has failed to maintain CANbus
communications with the ground module.
The control system received Accessory Message – Control
1 from an Accessory Module, but failed to receive another
within 1000mS. Retained until power is re-cycled.
No motion interlocks.
resume if difficulty is resolved.
A JLG Accessory Module has encountered a fault condi-
tion and reported it via the host control system.
Accessory Message – Control 1's Request Accessory
Fault flag is set to YES. Retained or cleared based on sta-
tus of flag.
No motion interlocks.
Help messages with the 7-7 flash code indicate motor problems.
The Power Module detected an error in the power wiring
(F1 & F2 Terminals) for the drive motors.
The Power Module is reporting a "Field Open Circuit" Fault
Code (16d). Retained until power is re-cycled.
Drive & Steer Prevented
– JLG Lift–
CAUSE POSSIBLE RESOLVE
Check wiring at the ground
control box and power mod-
ule. Recycle power to clear
difficulty.
Check wiring at the platform
and ground control boxes.
Check wiring along scissor
arms leading up to Platform.
Check wiring at the Load
Sensing System Module and
along scissor arms leading up
to platform.
Refer to documentation for the
JLG Accessory to clear diffi-
culty.
Refer to documentation for the
JLG Accessory to clear diffi-
culty.
Check power wiring and re-
cycle power to clear difficulty.
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