Service Manual

Table Of Contents
Multi Pro 5800 Page 7 29 ExcelaRate Spray System
Machine Faults
Machine faults are generated by the Toro Electronic
Controller (TEC) to identify an electrical system mal-
function (fault) that occurs during machine or spray sys-
tem operation. When a spray system fault occurs, an
audible alarm will sound and the InfoCenter will display
information about the fault. Spray system faults can be
viewed via the InfoCenter Diagnostic Screen Fault
Viewer (Fig. 29). See InfoCenter Diagnostic Screen
Fault Viewer in this chapter for additional information.
The list below identifies the fault codes that are gener-
ated by the Toro Electronic Controller (TEC) to identify
an electrical spray system malfunction (fault) that oc-
curred during spray system operation for revision D soft-
ware. Use the InfoCenter Display Diagnostics > Fault
Viewer for fault retrieval.
Figure 29
19 39.4 39.4 1
Fault Code Fault Description Recommended Action
19 Spray System Fault Flow Meter not working correctly or
harness fault (No flow detected when based upon boom, pump
and pressure it indicates there should be)
Spray pump is ON,Master Boom switch is ON, at least one
boom is ON, spray pressure is above 20 PSI, the booms have
been on long enough for the system to stabilize and vehicle
speed is fast enough for automatic applicationrate control to
be enabled
Check the flow meter harness
for proper connection.
Confirm fluid flow at spray
nozzles. If so, flow should be
displayed on the flow rate me-
ter. If no fluid flow at spray
nozzles, begin checking the
spray system for a blockage.
Check flow meter for proper
function.
41 Spray System Fault Controller has detected a short circuit on
the spray pump PWM output circuit (TEC output 9 pin 44).
OR
Controller has determined an internal component in the
controller has overheated.
Check harness and associat-
ed components for a short to
ground
If fault persists, replace TEC
due to internal damage. Con-
tact your Authorized Toro Dis-
tributor
NOTE: The above list pertains to spray system faults on-
ly. See Machine Faults in Chapter 6 Electrical System
in this manual for a complete list of all possible machine
faults.