JLG 723A Service Manual - Manual (Page 195)

9.87 L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7
Electrical System
DRIVE DIRECTION
SIGNAL LOST 463 1 Command an ‘N’ in the cabin’s
display.
Broadcast the TC1 J1939 CAN
message on CAN1 to command the
TCM to the neutral gear selection if
MODELS: TH336, TH337, TH406,
TH407, TH414, TH417, TH515 are
configured.
Deactivate and inhibit output J2-33
Transmission Forward.
Deactivate and inhibit output J2-32
Transmission Reverse.
Deactivate and inhibit output J1-1
Reversing Alarm and Lights.
J4-4 Neutral and J7-22 Forward and
J4-18 Reverse are simultaneously
LOW for a period of 3 seconds or
more
Only input
J4-4 Neutral is
HIGH.
CONFLICTING
GEAR SELECTION
SIGNALS 464 1 Maintain the output of the last valid
gear selected or 3
rd Gear if the fault
is present at startup for
POWERSHIFT and
POWERSYNCRO transmissions or
2 nd Gear if the fault is present at
startup for a HYDROSTATIC
transmission. Transmission drive
direction signals will still be
acknowledged in this case.
Flash last valid gear selection or
flash 3 rd Gear if the fault is present
at startup for POWERSHIFT and
POWERSYNCRO transmissions or
2 nd Gear if the fault is present at
startup for a HYDROSTATIC
transmission on the LCD of the
cabin’s display.
If more than one of the gear
selection inputs, J4-21 1st Gear /
J4-11 2nd Gear / J4-22 3rd Gear /
J4-23 4th Gear, are HIGH
simultaneously for a period of 3
seconds.
J4-5 Park
Brake is HIGH
and issue
cleared or
power cycled.
GEAR SELECTION
SIGNAL LOST 465 1 Maintain the output of the last valid
gear selected or 3 rd Gear if the fault
is present at startup for
POWERSHIFT and
POWERSYNCRO transmissions or
2
nd
Gear if the fault is present at
startup for a HYDROSTATIC
transmission. Transmission drive
direction signals will still be
acknowledged in this case.
Flash last valid gear selection or
flash 3 rd Gear if the fault is present
at startup for POWERSHIFT and
POWERSYNCRO transmissions or
2 nd Gear if the fault is present at
startup for a HYDROSTATIC
transmission on the LCD of the
cabin’s display.
If J4-21 1st Gear and J4-11 2nd
Gear and J4-22 3rd Gear and J4-23
4th Gear are simultaneously LOW
for a period of 3 seconds or more.
J4-5 Park
Brake is HIGH
and issue
cleared or
power cycled.
Message Fault
Code
Indicators Other Actions Taken Trigger for Fault Latch Until