99
Service Manual – SW5500, FLOORTEC R 985
20 - Wheel System, Traction
Drive Board Error Codes
CODE - Description
(shown on multifunction display)
Meaning
First procedure
If the problem persists
TR AL.223
COIL SHOR. MC-EB
Contactor coil short circuit.
Check the wires between the
Drive Wheel Controller and
the Drive Wheel Controller
contactor (ES2).
Substitute the Drive Wheel
Controller contactor (ES2).
TR AL.226
VACC OUT RANGE
Pedal analogue output
beyond max.
Check the accelerator pedal
output (R1.WHITE WIRE).
Substitute the pedal.
TR AL.228
SEAT SWITCH OPEN
Seat microswitch open.
Check the wires between
the drive board and the seat
switch (SW1). Check the
driver’s seat switch (SW1)
functionality.
Replace the driver’s seat
switch (SW1).
TR AL.231
WATCHDOG#2
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.233
POWER MOS SHORT
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.236
CURRENT GAIN
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.247
DATA ACQUISITION
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.248
NO CAN MSG.
CANBUS communication
problem.
Check the twisted pair
between the drive board and
EB1.J7.
Replace the Main Machine
Controller.
TR AL.249
CHECK UP NEEDED
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.250
THERMIC SENS. KO
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.251
WRONG BATTERY
Battery voltage at ignition
<18V or > 30V.
Check the battery voltage.
Check the key circuit (from
fuse F2 to EB1.J1.1 and from
EB1.J1.11 to EB2.JC.1).
TR AL.252
WRONG ZERO
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.
TR AL.253
SLIP_PROFILE
Issue internal to the drive
board.
Switch off and on the
machine by key switch
(KEY).
Replace the Main Machine
Controller.