Toro Groundsmaster 4500-D Series Service Manual page 57

Fault
Fault Title
ID
C1483 Solenoid 8 -
Short to Battery
C1484 Solenoid 8 -
Short to Ground
/ Overcurrent
C1485 Solenoid 8 -
Open Circuit
C1493 Solenoid 9 -
Short to Battery
C1494 Solenoid 9 -
Short to Ground
/ Overcurrent
C1495 Solenoid 9 -
Open Circuit
Groundsmaster ® 4500-D/4700-D
19245SL Rev A
Contro- Fault Condition
ller(s) / Circuit
Affected Description
T2 Low current
detected on right
deck lower S8
output indicating
a short to a high
(+) source. This
short could be to
battery voltage or
to another signal
that is in a high
state.
T2
Overcurrent
detected on right
deck lower S8
output indicating a
short to ground.
T2 Open circuit
detected on right
deck lower S8
output.
T2 Low current
detected on right
deck float S9
output indicating
a short to a high
(+) source. This
short could be to
battery voltage or
to another signal
that is in a high
state.
T2 Overcurrent
detected on right
deck float S9
output indicating
a short to ground.
T2 Open circuit
detected on right
deck float S9
output.
Additional
Notes
1. Test the output circuit for a short.
2. Test for proper resistance in the component
connected to the auxiliary TEC (P75, pin
4).
3. Swap the T2: Auxiliary controller with a
known-good unit (contact an Authorized
Toro Distributor for assistance).
1. Test the output circuit for a short.
2. Test for proper resistance in the component
connected to the auxiliary TEC (P75, pin
4).
3. Swap the T2: Auxiliary controller with a
known-good unit (contact an Authorized
Toro Distributor for assistance).
1. Test the output circuit for an open.
2. Test for proper resistance in the component
connected to the auxiliary TEC (P75, pin
4).
3. Swap the T2: Auxiliary controller with a
known-good unit (contact an Authorized
Toro Distributor for assistance).
1. Test the output circuit for a short.
2. Test for proper resistance in the component
connected to the auxiliary TEC (P75, pin
2).
3. Swap the T2: Auxiliary controller with a
known-good unit (contact an Authorized
Toro Distributor for assistance).
1. Test the output circuit for a short.
2. Test for proper resistance in the component
connected to the auxiliary TEC (P75, pin
2).
3. Swap the T2: Auxiliary controller with a
known-good unit (contact an Authorized
Toro Distributor for assistance).
1. Test the output circuit for an open.
2. Test for proper resistance in the component
connected to the auxiliary TEC (P75, pin
2).
3. Swap the T2: Auxiliary controller with a
known-good unit (contact an Authorized
Toro Distributor for assistance).
Page 3–17
Service Actions
Troubleshooting: