JLG 3246ES Service Manual - Manual (Page 140)

SECTION 5 - JLG CONTROL SYSTEM
5-20 – JLG Lift– 3121166
9 9
LSS INTERNAL ERROR – PIN EXCITATION
The Excitation Voltage for the Load Sensors < 4.25V.
9-9 Flash Code
LSS Module Message – Status Message (0x81) is reporting
“INTERNAL ERROR – PIN EXCITATION < 4.25V” AND [Machine
Setup’s LOAD is set to 1=CUTOUT PLT OR 2=CUTOUT ALL].
Retained until power is re-cycled.
Vehicle assumed to be Overloaded.
The sensors may be excessively
loading the Excitation Supply
due to wiring damage, or the
Load Sensing System Module
may have hardware difficulty.
9 9
LSS INTERNAL ERROR – DRDY MISSING FROM A/D
The DRDY Interrupt from the Load Sensing System Module’s A/
D Converter is missing.
9-9 Flash Code
LSS Module Message – Status Message (0x81) is reporting
“INTERNAL ERROR – DRDY INTERRUPT FROM A/D” AND
[Machine Setup’s LOAD is set to 1=CUTOUT PLT OR 2=CUTOUT
ALL]. Retained until power is re-cycled.
Vehicle assumed to be Overloaded.
This may indicate Load Sensing
System Module hardware diffi-
culty.
9 9
POWER MODULE FAILURE: PERSONALITY RANGE ERROR
The Power Module detected an out-of-range or corrupt per-
sonality setting.
9-9 Flash Code
The Power Module is reporting a “Configuration Range” Fault
Code (11d) OR a “Configuration CRC” Fault Code (12d) OR a
“Motor Setup” Fault Code (13d). Retained until power is re-
cycled.
Reset control system Personali-
ties to default settings to clear
difficulty.
9 9
POWER MODULE FAILURE: INTERNAL ERROR
The Power Module detected an internal error via self-test.
9-9 Flash Code
The Power Module is reporting a “Two Direction” Fault Code
(4d) OR a “Sequence” Fault Code (5d) OR a “CANbus Input”
Fault Code (6d) OR a “12V Supply Detection” Fault Code (18d)
OR a “System Monitor Activated” Fault Code (24d). Retained
until power is re-cycled.
Re-cycle power to clear diffi-
culty.
9 9
POWER MODULE FAILURE: CHECK POWER CIRCUITS OR
MOSFET SHORT CIRCUIT
The Power Module detected an error in the Power Wiring for
the Drive or Pump. Alternately, the Power Module has failed a
self-test.
9-9 Flash Code
The Power Module is reporting an “Armature MOSFET Short
Circuit” Fault Code (17d) OR an “Armature MOSFET’s Off” Fault
Code (19d) OR an “Armature MOSFET’s On” Fault Code (20d) OR
an “Armature Pullup MOSFET Short Circuit” Fault Code (21d).
Retained until power is re-cycled.
Check wiring and motors or
replace the Power Module. Re-
cycle power to clear difficulty.
9 9 POWER MODULE FAILURE: SYSTEM MONITOR
The ground board detected armature, field, or pump current
while function was not commanded.
Refer to Drive Motor Electrical
Evaluation in Section 3.7.
Refer to Pump Motor Electrical
Evaluation in Section 4.7.
Refer to Power Module Electrical
Evaluation in Section 3.8.
9 9
EEPROM FAILURE – CHECK ALL SETTINGS
The control system detected an EEPROM failure. Personalities
and Machine Setup settings may be reset to default values.
9-9 Flash Code
The control system’s EEPROM checksum indicates corruption.
Retained until EEPROM settings are corrected and power is re-
cycled.
Check / correct all settings and
re-cycle power to clear diffi-
culty.
Table 5-2. Flash Code Listing
Flash
Code
Help Message Cause Possible Resolve