General Information; Electrical Schematics And Wire Harness Drawings/Diagrams; Standard Control Module (Scm) - Toro Groundsmaster 3280-D Service Manual

General Information

Electrical Schematics and Wire Harness Drawings/Diagrams

Standard Control Module (SCM)

Groundsmaster ® 3280-D/3320
05138SL Rev B
The Operator's Manual provides information regarding the operation, general
maintenance, and maintenance intervals for your machine. Refer to the
Operator's Manual for additional information when servicing the machine.
Refer to the Electrical Schematics and Wire Harness Drawings/Diagrams in
Appendix A (page A–1).
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1. Standard Control Module (SCM)
The Groundsmaster 3280-D and Groundsmaster 3320 machines is equipped
with a Standard Control Module (SCM) to monitor and control the electrical
components required for safe operation. The SCM is located under the control
panel cover (Figure 112).
The SCM monitors the inputs from the key, neutral, parking brake, PTO, seat,
high temperature warning switch, and high temperature shutdown switch.
Current output to the PTO (electric clutch), engine starter motor, and engine
run components (fuel pump, diesel engine run solenoid, and gasoline engine
ignition) are controlled based on the inputs monitored by the SCM.
Use the SCM to check the operation of the machine switches by monitoring the
SCM LEDs. If a SCM LED does not illuminate (e.g., the in seat input LED does
not illuminate when the seat is occupied and the key switch is in the O
you must test the switch, fuses, and circuit wiring.
The SCM does not connect to an external computer or hand held device, cannot
be re-programmed, and does not record intermittent fault data.
Refer to the Traction Unit Operator's Manual for additional Standard Control
Module information.
Figure 112
2. Fuse block
Page 6–3
position),
N
Electrical System: General Information