Toro Pro Force 44552, Руководство по обслуживанию

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Key Switch (for Models 44552, 44552TE, and 44553)
g279128
Figure 22
1. Control tower 2. Key switch
POSITION CLOSED
CIRCUITS
OFF 1 + 6, 4 + 5
RUN 1 + 3 + 4 + 5 + 6
START 1 + 2 + 4 + 5 + 6
The key switch on the machine control tower has three (3) positions − OFF, RUN
and START. The key switch is an input used by the TEC and RF2CAN module
to manage various machine functions. The key switch is part of the Energize
to Run (ETR) circuit.
Testing the Key Switch
If the ETR circuit (including the key switch) is functioning properly, the diagnostic
light on the machine control tower will illuminate when the key switch is set to
the R
UN
position. If testing determines that the switch and circuit wiring are not
functioning correctly, proceed with the following test procedure:
1. Park the machine on a level surface and stop the engine.
2. Disconnect the battery negative (-) cable at the battery.
3. Disconnect the wire harness connector from the switch and remove the
switch from the control tower if necessary.
Note: Key switch terminals 1 and 6 are connected internally. Terminals 4
and 5 are also connected internally. These terminals should have continuity
regardless of the switch position.
Pro Force® Debris Blower Page 5–17 Electrical System: Testing the Electrical Components
18237SL Rev A