Machine Faults (continued)
Fault
ID
Fault Title
Controller(s)
Affected
Fault
Condition/Circuit
Description
Additional Notes
Service Actions
U012A CAN Bus
Communication
Fault -
Precharge
Controller
T1
The primary
controller never
establishes
or loses
communication
with the
precharge
controller (T6).
One or more
machine
functions may
be disabled.
1.
Check the power supply (fused) to the
controller.
2.
Test the CAN bus.
3.
Swap the T6: precharge controller
with a known-good unit (contact
an Authorized Toro Distributor for
assistance).
U0131 CAN Bus
Communication
Fault - Steering
T1
The primary
controller never
establishes
or loses
communication
with the steering
motor (SC7).
Traction is
disabled.
1.
Test the wiring from the controller to
the CAN bus.
2.
Verify power to the controller.
3.
Replace and program the steering
motor (contact an Authorized Toro
Distributor for assistance).
4.
Cycle the key switch.
5.
Use the InfoCenter to calibrate the
steering system – center first, then the
steering system – range.
U0156 CAN Bus
Communication
Fault -
InfoCenter
T1
The primary
controller never
establishes
or loses
communication
with the
InfoCenter
(SC1).
1.
Test the wiring from the controller to
the CAN bus.
2.
Check the power supply (fused) to the
controller.
3.
Replace and program the InfoCenter
(contact an Authorized Toro Distributor
for assistance).
U0292 CAN Bus
Communication
Fault - Traction
Motor 2
T1
The primary
controller never
establishes
or loses
communication
with the left side
traction motor
controller (SC6).
Traction is
disabled.
1.
Test the wiring from the controller to
the CAN bus.
2.
Check the power supply (fused) to the
controller.
3.
Replace and program the traction
motor controller (contact an Authorized
Toro Distributor for assistance).
4.
Cycle the key switch.
5.
Use the InfoCenter to calibrate the
traction motors.
U029B CAN Bus
Communication
Fault - Traction
Motor 3
T1
The primary
controller never
establishes
or loses
communication
with the optional
rear traction
motor (T5).
Traction is
disabled.
1.
Test the wiring from the controller to
the CAN bus.
2.
Check the power supply (fused) to the
controller.
3.
Replace and program the traction
motor (contact an Authorized Toro
Distributor for assistance).
U0320 Software
Version
Incompatibility -
Steering
T1
The steering
firmware is
incompatible.
Machine is
disabled.
Update machine software (contact an
Authorized Toro Distributor for assistance).
U1011
Controller Logic
Voltage - High
T1
12V logic circuit
voltage is above
16.3V.
1.
Check the power supply (fused) to the
controller.
2.
Test the 48 VDC/12 VDC converter.
Greensmaster® eTriFlex 3360 and 3370
Page 3–33
Troubleshooting: Battery Charger Error and
19239SL Rev B
