JLG 1930ES Service Maintenance Manual page 137

FLASH
HELP MESSAGE
CODE
4 2 POWER MODULE TOO HOT – PLEASE WAIT
4 2 DRIVING AT CUTBACK -- POWER MODULE CUR-
RENT LIMIT
4 2 LIFT UP AT CUTBACK -- POWER MODULE CUR-
RENT LIMIT
4 4 BATTERY VOLTAGE TOO LOW – SYSTEM SHUT-
DOWN
4 4 BATTERY VOLTAGE TOO HIGH – SYSTEM SHUT-
DOWN
4 4 LSS BATTERY VOLTAGE TOO HIGH
4 4 LSS BATTERY VOLTAGE TOO LOW
3121166
Table 5-2. Flash Code Listing
Help messages with the 4-2 flash code indicate a thermal problem.
The Power Module for drive, steer, and lift up has reached
thermal cutout. Allow to cool by powering down.
The power Module is reporting a "Unit Too Hot" fault code.
The drive portion of the Power Module has reached ther-
mal limit. Allow to cool by waiting for temperature to fall.
The Power Module is reporting a "I
fault code.
The lift up portion of the power module has reached ther-
mal limit. Allow to cool by waiting for temperature to fall.
The POwer Module is reporting "I
fault code.
Help messages with the 4-4 flash code indicate a battery supply problem.
Battery Voltage momentarily dropped below 14.5V. With a
low battery charge, this can occur during heavy current
demand due to drive, steer, or lift up.
The Power Module is reporting a "Low Battery" Fault Code
(7d).
Drive, Steer, & Lift Up Prevented
The Power Module momentarily measured excessively
high battery voltage (>37.0v) and the ground module de-
energized the ignition relay to protect system devices.
The Power Module is reporting a "High Battery" Fault Code
(8d) OR a "High Battery without Line" Fault Code (10d). In
response, the Ground Module shall de-energize the Igni-
tion Relay and suppress all Help Messages caused by the
lack of Ignition Signal. This fault is latched until the next
power-cycle.
Drive, Steer, & Lift Prevented.
While the Load Sensing System is enabled, the Load Sens-
ing System module measured battery voltage >34.0Vdc,
which may compromise ability to predict weight.
LSS Module Message – Status Message (0x81) is report-
ing "BATT TOO HIGH" AND [Machine Setup's LOAD is set
to 1=CUTOUT PLT OR 2=CUTOUT ALL]. Vehicle
assumed to be Overloaded.
While the Load Sensing System is enabled, the Load Sens-
ing System module measured battery voltage <9.0vdc,
which may compromise ability to predict weight. With a low
battery charge, this can occur during heavy current
demand due to drive, steer, or lift up.
LSS Module Message – Status Message (0x81) is report-
ing "BATT TOO LOW" AND [Machine Setup's LOAD is set
to 1=CUTOUT PLT OR 2=CUTOUT ALL].
Vehicle assumed to be Overloaded.
SECTION 5 - JLG CONTROL SYSTEM
CAUSE
2
T Drive Current LImit"
2
Pump Current LImit"
– JLG Lift –
POSSIBLE RESOLVE
Recharge batteries or check
for damaged batteries.
This may be due to improper
battery charging or incorrect
voltage batteries being used.
This may be due to improper
battery charging or incorrect
voltage batteries being used.
Recharge batteries or check
for damaged batteries.
5-17