Diagnostic Ace Display; Checking The Interlock Switches - Toro 30581 Groundsmaster 580-D Operator's Manual

1
Figure 27
1. Electronic controller light
When the controller diagnostic light blinks, one of the
following outputs has been detected in the controller:
One of the outputs has been shorted.
One of the outputs is open circuited.
Using the diagnostic display, determine which output is
malfunctioning; refer to Checking the Interlock Switches,
page 26.
If the diagnostic light is not illuminated when the key
switch is in the ON position, this indicates that the
electronic controller is not operating. Possible causes are:
Loopback is not connected.
Fuses are blown.
The light is burned out.
Not functioning correctly.
Fusible links are blown.
Check electrical connections, input fuses and diagnostic
light bulb to determine malfunction. Make sure loopback
connector is secured to wire harness connector.
Note: If the diagnostic light flashes during normal
operation of the machine, do not turn off the machine,
toggle to the output and touch any switch. The LED will
flash indicating the source of the failure.

Diagnostic ACE Display

The machine is equipped with an electronic controller
which controls most machine functions. The controller
determines what function is required for various input
switches (i.e. seat switch, key switch, etc.) and turns on the
outputs to actuate solenoids or relays for the requested
machine function.
For the electronic controller to control the machine as
desired, each of the input switches, output solenoids and
relays must be connected and functioning properly.
The Diagnostic ACE display is a tool to help the user verify
correct electrical functions of the machine.
Checking the Interlock
Switches
Caution
If safety interlock switches are disconnected or
damaged the machine could operate unexpectedly,
causing personal injury.
Do not tamper with the interlock switches.
Check the operation of the interlock switches
daily and replace any damaged switches before
operating the machine.
Replace switches every two years regardless of
whether they are operating properly or not.
The purpose of the interlock switches are to prevent the
engine from cranking or starting unless the traction pedal is
in NEUTRAL, to ensure cutting units disengage when
raised or when operator leaves the seat. In addition, the
engine will stop when the traction pedal is depressed with
operator off the seat.
Verifying Interlock Switch Function
1. Park machine on a level surface, lower the cutting units,
stop the engine and engage the parking brake.
2. Open control panel cover. Locate wire harness and
connectors near controller. Carefully unplug loop back
connector from harness connector (Fig. 28).
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Figure 28
1. Wire harness and connectors
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