Toro Greensmaster TriFlex 3300 Manual page 171

Location Harness
1 Main
2 Main
CAUTION
Overtightening the harness connector retaining fastener will damage the primary TEC
controller.
After you plug connector P01 back into the TEC, torque the retaining fastener for P01 to 25–28
in-lbs.
Pass The wiring continuity tests passed. Go to Step 6.
Fail The wiring continuity tests did not pass. Repair or replace the faulty wiring. Go to
Machine to Service (page 21)
Step 6: Verify the primary TEC is getting 12 V from the relay.
1. Rotate the key switch to the R
2. Verify that the InfoCenter lights up and displays current data.
Pass The primary TEC is receiving 12 V from the relay. Go to Step 7.
Fail The primary TEC is not getting 12 V from the relay. Test the relay according to Chapter 6 of the
Greensmaster TriFlex 3320/3420 Service Manual and replace if necessary.
Step 7: Swap the primary TEC-5001 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.
Pin
Connector
P01 1
(GY/BK)
P20 4
and follow the steps listed.
position.
UN
23).
Go to Returning the Machine to Service (page 21)
Reinstall the original primary TEC controller. Repeat the diagnostic process for
this fault.
Wire Expected
Color Reading
Gray/
Black
less than
2 ohms
Orange
(OR)
171
Connector Graphic
Returning the
Replacing a Toro
and follow the steps listed.