Service Manual Instruction Manual

SECTION 6 - JLG CONTROL SYSTEM
6-26 – JLG Lift – 3121616
FUEL SENSOR SHORT TO
GROUND
Indicates fuel sensor is reading below 0.2 volts.
4/4 Flash code 4/4 indicates problems with the battery supply. Not reported during
2 second power-up.
7
BATTERY LOW Battery voltage is below 11V for more than 5 seconds. This fault is not detected
during crank. This is a warning – controller does not shut down.
BATTERY TOO HIGH –
SYSTEM SHUT DOWN
Battery voltage is above 16V. EMS recycle required.
BATTERY TOO LOW –
SYSTEM SHUT DOWN
Battery voltage is below 9V.
5/5 Flash code 5/5 indicates problems with vehicle engine RPM or the encoder. Not
reported during 2 second power-up.
8
SPEED SENSOR READING
INVALID SPEED
This fault is detected with diesel engines only. The RPM pickup is indicating a
speed that greater than 4000 RPM or approximately 8875 Hz.
SPEED INPUT LOST This fault is detected with diesel engines only. It occurs if there is no RPM
detected and the oil pressure input is reading above 8 PSI for more than three
seconds. This is probably due to wiring problems at the ground module or a
faulty speed sensor.
6/6 Flash code 6/6 indicates problems with the CAN bus. 10
CAN BUS FAILURE: Ground module or platform module is not receiving CAN messages. This is
probably due to wiring problems between the platform and ground modules.
7/7 Flash code 7/7 indicates problems with a motor.
NOT REQUIRED
9/9 Flash code 9/9 indicates problems with the controller. 11
PLATFORM MODULE
SOFTWARE UPDATE REQUIRED
Platform module code is too old to support the EIM or BPE load sensor and the
machine is configured to use one of these two sensors. The PM code must be
updated to a newer version.
HIGH RESOLUTION A2D
FAILURE –INTERRUPT LOST
The ADS1213 chip in the platform module has stopped asserting its interrupt
(DRDY) line for some reason. An EMS cycle is required.
HIGH RESOLUTION A2D
FAILURE-REINIT LIMIT
The ADS1213 has needed to be reset 3 or more times.
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
GROUND SENSOR REF
VOLTAGE OUT OF RANGE
These faults occur when the seven volt reference voltage used for joysticks, sen-
sors, etc. goes out of range. Not reported during 2 second power-up.
PLATFORM SENSOR REF VOLT-
AGE OUT OF RANGE
These faults occur when the seven volt reference voltage used for the joysticks,
sensors, etc. goes out of range. Not reported during 2 second power-up.
EEPROM FAILURE – CHECK ALL
SETTINGS
A critical failure occurred with the EEPROM. Personalities, machine configura-
tion digits, etc. may be reset to default values and should be checked.
CHASSIS TILT SENSOR NOT GAIN
CALIBRATED
Indicates that chassis tilt sensor calibration information has been lost. Machine
will indicate it is tilted at all times. This calibration data is programmed into the
unit at the factory.
CHASSIS TILT SENSOR GAIN OUT
OF RANGE
Indicates chassis tilt sensor calibration is corrupted.
Table 6-3. Help Fault Codes, Displayed Faults, and Descriptions
Fault Flash
Code
Communicated (Displayed on
Analyzer) Fault
Description Priority