JLG 800A_AJ ANSI Service Manual User Manual
Page 375
SECTION 6 - JLG CONTROL SYSTEM (S/N 0300065534 TO PRESENT)
3120740
– JLG Lift –
6-45
6/6
Flash code 6/6 indicates problems with the CAN bus.
10
CAN BUS FAILURE:
The ground module or platform module is not receiving. This is prob-
ably due to wiring problems between the platform and ground mod-
ules.
7/7
Flash code 7/7 indicates problems with a motor.
NOT REQUIRED
8/1
Flash codes 8/1 indicate sensor issues.
11
UMS SENSOR NOT CALI-
BRATED
The control system detects a sensor out of range condition or a not
calibrated fault with the UMS angle sensor
UMS SENSOR FAULTED
The system detects that the UMS sensor frequency outside the
100Hz +/- 5Hz range or the duty cycle is outside 50% +/- 21%
range
TOWER LIFT DOWN OUTPUT
SHORT TO GROUND OR OPEN
CIRCUIT
Short to Ground or open circuit has been detected on the Tower Lift
Down output.
TOWER LIFT DOWN OUTPUT
SHORT TO BATTERY
Short to battery has been detected on the Tower Lift Down output
PLATFORM INDICATOR OUTPUT
SHORT TO GROUND OR OPEN
CIRCUIT
Short to Ground or open circuit has been detected on the Platform
Indicator output
PLATFORM INDICATOR OUTPUT
SHORT TO BATTERY
Short to battery has been detected on the Platform Indicator output
GROUND INDICATOR OUTPUT
SHORT TO GROUND OR OPEN
CIRCUIT
Short to Ground or open circuit has been detected on the Ground
Indicator output
GROUND INDICATOR OUTPUT
SHORT TO BATTERY
Short to battery has been detected on the Ground Indicator Output
11
TURNTABLE SENSOR NOT CAL-
IBRATED
The control system detects that the Chassis Tilt sensor is not cali-
brated or there is an internal fault with the sensor
TURNTABLE FAULTED
The system detects that the Chassis tilt sensor frequency outside the
100Hz +/- 5Hz range or the duty cycle is outside 50% +/- 21%
range the control
9/9
Flash code 9/9 indicates problems with the controller or memory issues.
11
PLATFORM MODULE FAILURE:
hwfs CODE 1
Platform module V(Low) FET has failed
GROUND MODULE FAILURE:
hwfs CODE 1
Ground module V(Low) FET has failed
EEPROM FAILURE – CHECK ALL
SETTINGS
A critical failure occurred with the EEPROM
12
Table 6-7. Help Fault Codes, Displayed Faults, and Descriptions - Prior to S/N 0300066931