Toro Greensmaster TriFlex 3300 Manual page 209

7. Connect multimeter (ohms setting) leads to relay terminals 30 and 87A. Apply +12 V to terminal 85. The
relay should make and break continuity between terminals 30 and 87A as +12 V is applied and removed
from terminal 85.
Pass The logic relay tested good. Go to Step 5.
Fail The logic relay did not test good. Replace the start relay. Go to
(page 21) and follow the steps listed.
Step 5: Swap the primary TEC controller with a known good unit.
Note:
TEC controllers are programmed to specific machine model and serial numbers. TEC controllers do not
function until programmed by Toro DIAG.
There are three procedures that you need to accomplish as part of replacing a TEC. Refer to
Electronic Controller (TEC) (page
1. Use Toro DIAG to save the machine timers and counters file out of the original TEC. (page 23)
2. Replace the TEC. (page 24)
3. Use Toro DIAG to program the TEC, and then restore the TD2 file. (page 25)
4. Duplicate the operation of the machine when the fault occurred with the original primary TEC.
The fault no longer
repeats.
The fault still repeats.
23).
Go to Returning the Machine to Service (page 21)
Reinstall the original primary TEC controller. Repeat the diagnostic process for
this fault.
Returning the Machine to Service
209
Replacing a Toro
and follow the steps listed.