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Groundsmaster 4000--D/4010--DPage 5 -- 44Electrical System
Flasher Switch (Groundsmaster 4010--D)
On Groundsmaster 4010--D machines, the flasher
switch is used as an input for the TEC controller to pro-
vide power for the four way flashers. The switch is lo-
cated on the steering tower (Fig. 52).
Testing
1. Before disconnecting the flasher switch for testing,
the switch and its circuit wiring should be tested as a
TEC input with the InfoCenter Display (see InfoCenter
Displayin this chapter). If theInfoCenter verifies that the
flasher switch and circuit wiring are functioning correct-
ly, no further switchtesting is necessary.If, however,the
InfoCenter determines that the flasher switchand circuit
wiring are not functioning correctly, p roceed with test.
2. Make sure ignition switch is OFF. Remove key from
ignition switch.
3. Remove front steering tower cover (see Steering
Tower in the Service and Repairs section of Chapter 7
-- Chassis).
4. Locate flasher switch and unplug wire harness con-
nector from switch.
5. The switch terminals are marked as shown in Figure
53. The circuit logic of the flasher switch is shown in the
chartbelow.With theuse of amultimeter (ohmssetting),
theswitch functions may betested to determinewhether
continuity exists between the various terminals for each
position. Verify c ontinuity between switch terminals. Re-
place flasher switch if testing identifies a faulty switch.
SWITCH
POSITION
CLOSED
CIRCUITS
OPEN
CIRCUITS
ON (LIGHT
END DE-
PRESSED)
2+3
5+6
2+1
5+4
OFF 2+1
5+4
2+3
5+6
6. Connect the harness connector to the switch after
testing.
7. If switch tests correctly and circuit problem still ex-
ists, check wire harness (see Electrical Schematics and
Wire Harness Drawings in Chapter 10 -- Foldout Draw-
ings).
8. Install front steering towercover (see SteeringTower
in the Service and Repairs section of Chapter 7 -- Chas-
sis).
Figure 52
1. Steering column 2. Flasher switch
1
2
Figure 53
BACK OF SWITCH