Toro Workman GTX Electric & Lithium Service Manual page 47

Light Pattern Cause
Always on (not System functioning normally. None required.
flashing)
Always off System inoperable.
No electrical power to the
controller.
Status indicator light on dash
is faulty.
The controller has failed.
1 Flash System inoperable.
There is a controller
configuration fault
2 Flashes The parking brake is
engaged while in the
FORWARD or REVERSE
position.
This fault could also be
caused by a problem with
accelerator pedal operation.
3 Flashes System inoperable.
The motor current exceeded
the controller rated
maximum.
There is an internal
controller power component
fault.
4 Flashes Main contactor malfunction.
5 Flashes Exceeded the maximum
motor speed.
Workman GTX Electric
Necessary Action
Check for low battery voltage, faulty fuse(s), loose
battery cable connections, damaged battery cables
and/or faulty main contactor.
If batteries, cables and other electrical components are
in good condition, controller replacement may be
needed.
If necessary, contact your Authorized Toro Distributor for
assistance.
Turn key switch OFF, wait several seconds and turn key
switch ON. If controller does not reset correctly,
controller replacement may be required.
If necessary, contact your Authorized Toro Distributor for
assistance.
Release the parking brake if it is applied. If controller
does not reset correctly, parking brake switch or circuit
wiring may be faulty.
Turn key switch OFF, wait several seconds and turn key
switch ON. If controller does not reset correctly, check
accelerator pedal operation (see Accelerator Pedal in
this section).
Also, if necessary, inspect the circuit wires between the
accelerator pedal and the controller (see Electrical
Schematic and Wire Harness Drawings in Chapter 6 --
Electrical Drawings).
Turn key switch OFF, wait several seconds and turn key
switch ON. If controller does not reset correctly, check
battery pack voltage and all battery cable connections.
Check all batteries and high current controller
connections.
Controller replacement may be required.
If the condition continues, contact your Authorized Toro
Distributor for assistance.
Turn key switch OFF, wait several seconds and turn key
switch ON. If controller does not reset correctly, inspect
main contactor (see Main Contactor in this section).
Check main contactor wire and cable connections.
Turn key switch OFF, wait several seconds and turn key
switch ON. If controller does not reset correctly, inspect
traction motor encoder (speed sensor) (see Traction
Motor in this section).
Inspect the circuit wires between the traction motor
encoder and the controller (see Electrical Schematic and
Wire Harness Drawings in Chapter 6 -- Electrical
Drawings).
Page 3A - - 27 Electrical System