General Information; General Information; Electrical Drawings; Operator's Manual - Toro Workman GTX Service Manual

General Information

Operator's Manual

The Operator's Manual provides information regarding
the operation, general maintenance and maintenance
intervals for your Workman GTX vehicle. Refer to the
Operator's Manual for additional information when ser-
vicing the vehicle.

Engine Electronic Control Unit (ECU) (Fuel Injected Engines only)

Vehicles with a fuel injected engine (Kohler ECH440)
use an electronic control unit (ECU) for engine manage-
ment. The ECU is located at the front of the engine be-
low the valve cover. All wire harness electrical
connectors should be plugged into the ECU before the
machine ignition switch is moved from the OFF position
to either the RUN or START position.
IMPORTANT: Do not plug or unplug the engine ECU
for a period of forty (40) seconds after the machine
key switch is turned OFF. The ECU may remain ener-
gized even though the ignition switch is OFF.

Kohler Engine Electrical Components

When servicing or troubleshooting the engine electrical
components, refer to the KOHLER Command PRO EFI
ECH440 & ECH440LE Service Manual. The Kohler EFI
Diagnostic Software Kit (Kohler P/N 25 761 23−S) and
the adapter harness (Kohler P/N 25 176 23) is required
to see fault codes. view engine data, access service in-
formation, and aid in troubleshooting engine issues.
This kit includes the software and a communication ca-
ble. The adapter harness must be purchased separate-
ly. The diagnostic connecter is secured to the left side of
the swing arm under the air cleaner assembly.

Electrical Drawings

The electrical schematics and other electrical drawings
for the Workman GTX are located in Chapter 7 − Electri-
cal Drawings.
Electrical System
If the engine ECU is to be disconnected for any reason,
make sure that the ignition switch is in the OFF position
with the key removed before disconnecting the engine
ECU. Also, to prevent possible ECU damage when
welding on the machine, disconnect and remove the en-
gine ECU from the machine before welding.
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