Service Manual

Greensmaster 3360 and 3370 eTriFlex Diagnostic Fault Code Quick Reference Table Page 45 of 52
Fault
Number
Fault Title
Controller(s)
Affected
Fault Condition/Circuit
Description
Additional Notes
1) Service Actions
U1128
CAN Bus
Communication
Fault - Lift/Lower
Motor 1
T1
This fault is reported when
the primary controller (T1)
never establishes or loses
communication with
lift/lower actuator 1.
Disables the PTO.
1) Test the wiring from the actuator to the
CAN bus (P62).
2) Verify 48V logic power to the actuator.
3) Replace the actuator.
4) Use Toro DIAG to program the
replacement actuator.
5) Cycle the key switch.
6) Follow the Lift-lower 1 calibration
instructions displayed on the InfoCenter.
U1129
CAN Bus
Communication
Fault - Lift/Lower
Motor 2
T1
This fault is reported when
the primary controller
never establishes or loses
communication with
lift/lower actuator 2.
Disables the PTO.
1) Test the wiring from the actuator to the
CAN bus (P61)
2) Verify 48V logic power to the actuator.
3) Replace the actuator.
4) Use Toro DIAG to program the
replacement actuator.
5) Cycle the key switch.
6) Follow the Lift-lower 2 calibration
instructions displayed on the InfoCenter.
U112A
CAN Bus
Communication
Fault - Lift/Lower
Motor 3
T1
This fault is reported when
the primary controller
never establishes or loses
communication with
lift/lower actuator 3.
Disables the PTO.
1) Test the wiring from the actuator to the
CAN bus. (P59)
2) Verify 48V logic power to the actuator.
3) Replace the actuator.
4) Use Toro DIAG to program the
replacement actuator.
5) Cycle the key switch.
6) Follow the Lift-lower 3 calibration
instructions displayed on the InfoCenter.
U1140
Communication
Fault - Battery Cell
Module
SC8
The BMS controller never
established
communication or lost
communication with one
or more batteries.
While this fault is active,
the battery management
system (BMS) controller
keeps the battery
contactor open, not
allowing battery power
to go to the machine. As
a result, the machine
will not respond when
the key switch is turned
to the On position.
1) Inspect the M/S (8 batteries) Samsung
interface wire harness.
2) Create a Samsung battery output file, as
described in Toro DIAG Commercial
Products User’s Guide.
3) Deliver the Samsung battery output file to
the Toro Technical Assistance Center
(TAC) by attaching it to a support case.
4) Follow the repair advice provided by Toro
TAC.