Diagnostic Display - Toro Multi Pro 5800 Service Manual

Diagnostic Display

The Ultra Sonic Boom System is equipped with the Toro
electronic controller (TEC) which controls machine son-
ic boom electrical functions. The TEC monitors various
input switches (e.g. sonic boom switch, boom lift
switches, sonic boom sensors) and energizes outputs
(e.g. hydraulic valve solenoid coils, diagnostic lamp) for
appropriate machine functions.
For the TEC to control the machine as desired, each of
the inputs (switches and sensors) and outputs (solenoid
coils) must be connected and functioning properly.
The Diagnostic Display (see Special Tools in this chap-
ter) is a tool to help the technician verify correct electrical
functions of the machine.
IMPORTANT: The Diagnostic Display must not be
left connected to the machine. It is not designed to
withstand the environment of the machine's every
day use. When use of the Diagnostic Display is com-
pleted, disconnect it from the machine and recon-
nect loopback connector to harness connector. The
machine will not operate without the loopback con-
nector installed on the harness. Store the Diagnos-
tic Display in a dry, secure, indoor location and not
on machine.
Verify Diagnostic Display Input Functions
1. Park machine on a level surface, stop the engine and
apply the parking brake. Raise and support operator
seat.
2. Locate Ultra Sonic Boom wire harness communica-
tion port and loopback connector under the operator
seat (Fig. 14). Carefully unplug loopback connector
from harness connector.
3. Connect the Diagnostic Display connector to the
wire harness connector. Make sure correct overlay de-
cal is positioned on the Diagnostic Display (Fig. 15).
4. Turn the machine ignition switch to the ON position,
but do not start engine.
NOTE: The red text on the Diagnostic Display overlay
decal refers to input switches and the green text refers
to TEC outputs.
5. Make sure that the "INPUTS DISPLAYED" LED, on
lower right column of the Diagnostic Display, is illumi-
nated. If "OUTPUTS DISPLAYED" LED is illuminated,
press the toggle button on the Diagnostic Display to
change to "INPUTS DISPLAYED" LED.
Ultra Sonic Boom System (Rev. A)
3
1. TEC controller location
2. Loopback connector
Page 7.1 - - 20
1
2
Figure 14
3. Diagnostic shunt wires
Figure 15
Multi Pro 5800