Toro Groundsmaster 360 Service Manual page 293

Toro Electronic Controller (TEC) (continued)
Groundsmaster 360
16225SL Rev C
The Groundsmaster 360 machines use a Toro Electronic Controller (TEC) to
monitor the condition of various switches (inputs) and then direct electrical
power output to allow certain machine functions. The controller is attached
inside the power center assembly behind the operator seat
the InfoCenter display when checking the inputs and outputs of the TEC used
on your machine.
The logic power is provided to the controller as long as the battery cables are
connected to the battery. Circuit protection for this logic power to the controller is
provided by 2 A fuse.
The inputs from the key, neutral, parking brake, PTO, seat, deck lift, steering
selector, engine speed, steering home switches, and engine temperature sender
are all monitored by the controller.
The current output to the following components are controlled based on the
inputs received by the controller.
•
PTO circuit hydraulic valve solenoid coil
•
Lift circuit hydraulic valve solenoid coils
•
Steering selector switch light
•
4-wheel steering hydraulic valve solenoid coil
•
Fuel pump and engine ECU
The InfoCenter displays a machine fault code and description when an issue
is detected.
The connection terminal functions for the TEC are shown in
that electrical power for the controller outputs is provided through 3 connectors
(PWR 2, PWR 3, and PWR 4) each protected with a 7.5 A fuse. A 50 pin wire
harness connector attaches to the controller. The connector pins are identified
in Figure 202.
When testing for wire harness continuity at the connector for the
TEC, ensure that you do not damage the connector pins with the
multimeter test leads. If the connector pins are enlarged or damaged
during testing, connector repair will be necessary for proper
machine operation.
IMPORTANT
Page 5–57 Electrical System: Testing the Electrical Components
(Figure 201). Use
Figure 202. Note