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Reelmaster 3550−D Page 5 − 7 Electrical System
Retrieving Fault Codes
All machine fault codes are retained in the TEC control-
ler memory. The three (3) most recent fault codes that
have occurred within the last forty (40) hours of opera-
tion can be retrieved using the diagnostic light. To re-
trieve these fault codes from the controller memory,
perform the following switch sequence:
1. Operator seat should be UNOCCUPIED, the traction
pedal should be in neutral, the mow/transport slide
should be placed in the transport position and the ma-
chine should not be in backlap position.
2. Move and hold joystick in the RAISE position.
3. Turn ignition switch to the RUN position.
4. Monitor the diagnostic light for fault code(s).
NOTE: Once the diagnostic light begins to display fault
codes, the joystick can be released.
Fault codes are listed in the chart below. There will be
a one (1) second pause between the first and second
digit of a code. Up to three (3) fault codes retained in
controller memory will be displayed by the diagnostic
light in order from the most recent fault to the oldest fault.
If there are multiple faults in controller memory, there will
be a three (3) second pause between codes. The fault
codes will continually repeat after a five (5) second
pause until the ignition key is turned off.
If there are no faults that have occurred within the last
forty (40) hours of operation, the diagnostic light will
flash continuously after performing the above switch se-
quence.
If a fault code is not retrieved from the controller memory
within forty (40) hours of machine operating time, the
fault cannot be retrieved from controller memory using
this procedure. If necessary, contact your Toro distribu-
tor to retrieve older fault codes.
Fault Code (Lamp Flashes)
Fault Description
1 − 3 Controller master board is faulty
1 − 5 Circuit current to high temperature warning light is excessive
1 − 6 High engine temp warning occurred (PTO was shutdown by controller)
1 − 7 High engine temp shutdown occurred (engine was shutdown by controller)
1 − 8 Low engine oil pressure occurred
1 − 9 Engine alternator fault occurred
2 − 1 Excessive charging voltage was detected by controller (check charging sys-
tem)
2 − 2 Low charging voltage was detected by controller (check charging system)
2 − 3 Upper fuse 2 (7.5 amp) is faulty
2 − 4 Upper fuse 3 (7.5 amp) is faulty
2 − 5 Upper fuse 4 (7.5 amp) is faulty
2 − 6 Main power relay fault occurred (check main power relay)
3 − 1 Circuit current to start relay is excessive (check start relay circuit)
3 − 3 Circuit current to fuel stop solenoid is excessive (check solenoid circuit)
3 − 5 Circuit current to glow plug relay is excessive (check glow plug circuit)
4 − 1 Circuit current to energize the lift/lower S1 solenoid is excessive
5 − 1 Circuit current to energize the PRV solenoid (mow) is excessive
5 − 3 Circuit current to energize the lift/lower S2 solenoid is excessive
5 − 5 Circuit current to energize the lift/lower S3 solenoid is excessive
5 − 7 Circuit current to energize the lift/lower S4 solenoid is excessive
Table 1: Diagnostic Fault Codes
Electrical
System