Diagnostics System; Diagnosing The Service Indicator Light - Toro 04520 Operator's Manual

Diagnostics System

Diagnosing the Service
Indicator Light
The service indicator light illuminates in the event of
a fault in the machine. When this light is on, you can
access the computer codes to diagnose the problem
by entering diagnostic mode. In diagnostic mode, the
service indicator light will flash a number of times giving
you the error code that you or your distributor can use
to identify the problem.
Note: The engine cannot be started in diagnostic mode.
Entering Diagnostic Mode
1. Stop the machine, set the parking brake, and turn
the ignition key to Off.
2. Move the Functional Control Lever to the Transport
position.
3. Ensure that the Backlap lever is set to Forward (F).
4. Get off of the seat.
5. Hold the Raise/Lower Mow Control in the Raised
position.
6. Turn the ignition switch to the Run position.
7. Count the codes as they begin to flash (you may
release the Raise/Lower Mow Control once they
begin flashing).
When finished, turn the key to the Off position to exit
diagnostic mode.
Determining the Error Code
The system will display the last 3 faults that occurred in
the last 40 hours. It displays the faults through a series
of blinking lights, as follows:
• If there are no faults, the light with blink steadily at a
medium rate without pauses (1 Hz).
• If there is a fault, it will first blink the tens place,
followed by a pause, followed by the ones place.
For the following examples, a # represents a blink.
Examples:
– If the code is 15, the blink pattern will be
#_#####
– If the code is 42, the blink pattern will be
####_##
– If the code is 123, the blink pattern will be
############_###
• If there are more than one fault, the tens place of
the next fault will begin after a pause after the ones
place of the first fault.
Note: The system stores only the three most recent
fault codes.
For a list of error codes, refer to your Authorized
Distributor or the Service Manual.
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