Toro Multi Pro 1200 Service Manual page 295

CAUTION
When testing TEC inputs with the Diagnostic Dis-
play, boom actuators may be energized causing
the spray booms to move. Be cautious of poten-
tial sprayer component movement while verify-
ing inputs with the Diagnostic Display.
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 (e.g. toggle sonic boom switch), and note
that the appropriate LED on the Diagnostic Display will
illuminate when the corresponding switch is closed. Re-
peat on each switch that is possible to be changed by
hand (see Inputs and LED Operation chart below).
Diagnostic Display
Inputs
AUTO MODE
RIGHT RAISE
RIGHT LOWER
LEFT RAISE
LEFT LOWER
RETRIEVE FAULTS
LEFT SENSOR FAULT
RIGHT SENSOR FAULT
KEY RUN
NOTE: When the vehicle ignition switch is in the OFF
position, all Diagnostic Display LED's should be OFF.
NOTE: Initial calibration of the Ultra Sonic Boom sen-
sors is required for proper operation of TEC inputs. Re-
fer to your Sonic Boom Kit Installation Instructions for
information on initial sensor calibration.
Multi Pro 1200/1250
7. If appropriate LED does not toggle on and off when
switch state is changed, perform test of switch and/or
check all wiring and connections to that switch. 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. Plug loopback connector into wire harness.
Diagnostic Display
LED Operation
Sonic boom switch in auto position: LED ON
Sonic boom switch not in auto position: LED OFF
Right boom lift switch in raise position: LED ON
Right boom lift switch not in raise position: LED OFF
Right boom lift switch in lower position: LED ON
Right boom lift switch not in lower position: LED OFF
Left boom lift switch in raise position: LED ON
Left boom lift switch not in raise position: LED OFF
Left boom lift switch in lower position: LED ON
Left boom lift switch not in lower position: LED OFF
Diagnostic shunt wires are connected for fault retrieval: LED ON
Diagnostic shunt wires are not connected: LED OFF
The TEC has detected an invalid reading from left sensor: LED ON
Left sensor operating normally: LED OFF
The TEC has detected an invalid reading from right sensor: LED ON
Right sensor operating normally: LED OFF
Ignition key is in ON position: LED ON
Ignition key is in OFF position: LED OFF
NOTE: Right and left side Ultra Sonic Boom sensors
are identical so they can be exchanged to assist in trou-
bleshooting. If a problem follows the exchanged sensor,
an electrical problem likely exists with the sensor. If the
problem remains unchanged, something other than the
sensor is the problem source (e.g. switch, circuit wiring).
Page 9.1 - 21 Ultra Sonic Boom System (Rev. A)