JLG G12-55A AccuPlace Service Manual - Manual (Page 192)

Electrical System
9.74 G10-55A & G12-55A AccuPlace
BATTERY
VOLTAGE LOW 445 UGM measures battery
voltage < 11V for more than
3 seconds (excluding during
engine cranking). N Recharge batteries or check for damaged
batteries.
Also, wiring to UGM may be faulty.
Confirm voltage reading with a multimeter
at UGM connector J8.
LIFT VALVE –
VOLTAGE TO
LOW 449 Lift valve controller detects
supply voltage < 9V for 1
second. Y Recharge batteries or check for damaged
batteries.
Verify consistent voltage readings at other
control modules via the Analyzer under
Diagnostics/System Power. If the module
is providing an inconsistent reading, check
for faulty wiring to the module using a
multimeter.
LIFT VALVE –
VOLTAGE TOO
HIGH 4410 Lift valve controller detects
supply voltage > 17V for 1
second. Y May be due to improper battery charging
or incorrect voltage batteries being used.
Verify consistent voltage readings at other
control modules via the Analyzer under
Diagnostics/System Power. If
inconsistent, check voltage going into
module. If inconsistent with other modules
or reading on Analyzer, module
replacement may be required.
TELESCOPE
VALVE –
VOLTAGE TOO
LOW 4411 Tele valve controller detects
supply voltage < 9V for 1
second. Y Recharge batteries or check for damaged
batteries.
Verify consistent voltage readings at other
control modules via the Analyzer under
Diagnostics/System Power. If the module
is providing an inconsistent reading, check
for faulty wiring to the module using a
multimeter.
TELESCOPE
VALVE –
VOLTAGE TOO
HIGH 4412 Tele valve controller detects
supply voltage > 17V for 1
second. Y May be due to improper battery charging
or incorrect voltage batteries being used.
Verify consistent voltage readings at other
control modules via the Analyzer under
Diagnostics/System Power. If
inconsistent, check voltage going into
module. If inconsistent with other modules
or reading on Analyzer, module
replacement may be required.
Help Message
1
DTC Fault Condition
(for configurable items,
fault applies only if
configured)
Fault
Requires
AccuPlace
Reset?
Action(s)