Groundsmaster 3500Page 6 − 22Electrical System
Parking Brake and Transport/Mow Switches
The switches used for the parking brake and transport/
mow are the same, normally closed switch. The parking
brake switch is located under the dash cover and opens
when the parking brake lever is engaged. The transport/
mow switch is located under the floor plate and opens
when the transport/mow slide is in the transport position.
The Standard Control Module monitors the operation of
the parking brake switch. If the ignition switch is in the
ON position and the parking brake is disengaged, the
Parking Brake Off input LED should be illuminated.
1. Make sure the engine is off. Locate switch for testing.
2. Disconnect electrical connector from the switch.
3. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the switch connector
terminals.
4. When the switch plunger is extended there should be
continuity between the switch terminals.
5. When the switch plunger is depressed, there should
be no continuity between the switch terminals.
6. Reconnect switch connector.
1. Parking brake switch 2. Parking brake lever
Figure 25
1
2
1. Transport/Mow switch
Figure 26
1
Fuses
Four fuses are held in a fuse block located below the
control panel. An additional fuse is mounted alongside
the fuse block in a separate fuse holder (Fig. 27).
Gasoline Engines Only − An additional 30 Amp fuse is
located near the battery along the main wire harness in
a separate fuse holder.
Identification and Function (Fig. 27)
F1 (15A):Main
F2 (10A):Lighting (optional)
F3 (10A):System Gauges/Switches/SCM
F4 (10A):Diesel Units − Ignition/Glow Controller
Gasoline Units − Ignition
F5 (2A): Standard Control Module (SCM)
F6 (30A):Gasoline Units Only − Engine ECU
Testing
Remove fuses from the fuse block for testing. Fuse
should have continuity between fuse terminals.
Figure 27
1
4
3
2
5
Electrical
System
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