Toro Groundsmaster 4700-D Service Manual page 179

5. The "inputs displayed" LED, on lower right column of
the Diagnostic Display, should be illuminated. If "outputs
displayed" LED is illuminated, press the toggle button on
the Diagnostic Display to change to "inputs displayed"
LED.
6. The Diagnostic Display will illuminate the LED
associated with each of the inputs when that input switch
is closed. Individually, change each of the switches from
open to closed (i.e., sit on seat, press traction pedal,
etc.), and note that the appropriate LED on the Diagnos-
tic Display will illuminate when the corresponding switch
is closed. Repeat on each switch that is possible to be
changed by hand (see Inputs and LED Operation chart
on following page).
NOTE: When the Diagnostic Display is attached to the
wire harness connector and the ignition switch is in the
ON position, the input LED for traction pressure, hydrau-
lic temp and coolant temp should be illuminated. If the
harness connector is disconnected from the sensor for
any of these inputs, the appropriate LED should go off
after a few second delay. Then, if the harness connector
is reattached to the sensor, the input LED should again
illuminate after a few seconds.
7. If appropriate LED does not toggle on and off when
switch state is changed, check all wiring and connec-
tions to that switch and/or test switch (see Component
Testing in this chapter). Replace any defective switches
and repair any damaged wiring.
8. After input functions testing is complete, disconnect
the Diagnostic Display connector from the harness con-
nector and plug loop back connector into wire harness.
Secure access plate to frame.
Groundsmaster 4500--D/4700--D
TEC- -5002
OVERLAY
(BOTH
GM4500- -D
AND
GM4700- -D)
TEC- -5001
OVERLAY
(GM4700- -D
ONLY)
Page 5 - - 7
Figure 9
Figure 10
Electrical System