Verifying Output Function - Toro Reelmaster 3555 Operator's Manual

1. Diagnostic ACE
6. Turn the key switch to the O
Note:
The red text on the overlay decal refers to input switches and the green text refers to outputs.
7. The "inputs displayed" LED, on the lower right column of the Diagnostic ACE, should illuminate. If the
"outputs displayed" LED illuminates, press the toggle button, on Diagnostic ACE, to change LED to
"inputs displayed."
The Diagnostic ACE illuminates the LED associated with each of the inputs when that input switch is
closed.
8. Individually, change each of the switches from open to closed (i.e., sit on the seat, engage the traction
pedal, etc.), and note that the appropriate LED on the Diagnostic ACE blinks on and off when the
corresponding switch is closed. Repeat this for all switches that you can change by hand.
9. If a switch is closed and the appropriate LED does not turn on, check all wiring and connections to the
switch and/or check the switches with an ohm meter or multimeter. Replace any malfunctioning switches
and repair any malfunctioning wiring.
Note:
The Diagnostic ACE is also able to detect which output solenoids or relays are turned on. This is a
quick way to determine if a machine malfunction is electrical or hydraulic.

Verifying Output Function

1. Park the machine on a level surface, lower the cutting units, engage the parking brake, shut off the
engine, and remove the key.
2. Remove the access panel from the side of the control arm.
3. Locate the wire harness and connectors near the controller.
4. Carefully unplug the loop-back connector from the harness connector.
5. Connect the Diagnostic ACE connector to the harness connector.
Note:
Make sure that the correct overlay decal is positioned on the Diagnostic ACE.
6. Turn the key switch to the O
Note:
The red text on the overlay decal refers to input switches and the green text refers to outputs.
7. The "outputs displayed" LED, on lower right column of Diagnostic ACE, should illuminate. If the "inputs
displayed" LED illuminates, press the toggle button, on the Diagnostic ACE, to change the LED to "outputs
displayed."
Note:
It may be necessary to toggle between "inputs displayed" and "outputs displayed" several times
to do the following step. To toggle back and forth, press the toggle button once. You may do this as
often as needed. Do not hold the button.
Figure 101
position, but do not start the machine.
N
position, but do not start the machine.
N
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