Toro Greensmaster eTriFlex 3360 Service Manual page 66

Machine Faults (continued)
Fault
Fault Title
ID
P2530 Key Start/Run
Correlation
Fault
P2BE8 Traction Motor
Contactor -
Open
P2BE9 Traction Motor
Contactor -
Closed
P2BEA Traction Motor
Precharge
Failure
U0110 CAN Bus
Communication
Fault - Traction
Motor 1
Troubleshooting: Universal Groomer Problems
(Optional)
Fault
Controller(s)
Condition/Circuit
Affected
Description
T1 Key start input
is active but the
key run input is
off.
SC5 The wheel motor
contactor is
detected open
when it should
be closed.
SC5 The wheel motor
contactor is
detected closed
when it should
be open
SC5, SC6 There is a
short on the
48V traction
bus, too much
resistance,
or too much
capacitance in
the indicated
traction motor
controller.
T1 The primary
controller never
establishes
or loses
communication
with the right
side traction
motor controller
(SC5).
Additional Notes Service Actions
Machine will 1.
shut down since
key run input is
inactive
2.
3.
Traction is 1.
disabled.
Note: If this
fault occurs
2.
concurrently
with a
starter/generator
undervoltage
3.
fault or system
undervoltage
related fault,
check the key
switch.
Traction is 1.
disabled.
2.
3.
Traction is 1.
disabled.
2.
3.
4.
5.
Traction is 1.
disabled.
2.
3.
4.
5.
Page 3–30
Use the InfoCenter Diagnostics >
Engine > Inputs to verify the key run
and key start circuit inputs.
Check the key switch circuit wiring and
connectors (P57, P01).
Test the key switch.
Check the voltage across the coil of
the main contactor with the key On. It
should be approximately 48V when
the contactor is closed.
Check the voltage across the contactor
with the key On. It should be 0V when
the contactor is closed.
Test the main contactor.
Check the voltage across the coil of
the main contactor with the key Off. It
should be 0V when the contactor is
open.
Check the voltage across the contactor
with the key Off. It should be 48V
when the contactor is open.
Test the main contactor.
Check if an external load is installed
on the traction 48V bus. If there is,
remove it.
Unplug the bus voltage wire of one
traction motor at a time (do the
controller in charge of the precharge
last).
Replace and program the traction
motor controller (contact an Authorized
Toro Distributor for assistance).
Cycle the key switch.
Use the InfoCenter to calibrate the
traction motor controller.
For SC5, calibrate the traction pedal
first, then the traction motors.
For SC6, calibrate the traction motors.
Test the wiring from the controller to
the CAN bus.
Verify power to the controller.
Replace and program the traction
motor controller (contact an Authorized
Toro Distributor for assistance).
Cycle the key switch.
Use the InfoCenter to calibrate the
traction pedal first, then the traction
motors.
Greensmaster® eTriFlex 3360 and 3370
19239SL Rev A