Service manual

Groundsmaster 3280−D/3320 Page 6 − 19 Electrical System

Parking Brake Switch

The switch used for the parking brake is a normally open

switch. The switch closes when the parking brake is dis-

engaged. The parking brake switch is located under the

steering tower cover (Fig. 24).

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

Module Parking Brake Off input LED should be illumi-

nated.

Testing

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 connector termi-

nals.

4. When the switch plunger is extended there should

not be continuity between the switch terminals.

5. When the switch plunger is depressed, there should

be continuity between the switch terminals.

6. Reconnect switch connector.

1. Parking brake switch

2. Flat washer (2 used)

3. Phillips screw (2 used)

4. Parking brake rod

5. Switch actuator

6. Nut (2 used)

Figure 24

Electrical

System