Toro Groundsmaster 4500-D Series Service Manual page 54

Fault
Fault Title
ID
C1415 Solenoid 1 -
Open Circuit
C1423 Solenoid 2 -
Short to Battery
C1424 Solenoid 2 -
Short to Ground
/ Overcurrent
C1425 Solenoid 2 -
Open Circuit
C1433 Solenoid 3 -
Short to Battery
C1434 Solenoid 3 -
Short to Ground
/ Overcurrent
C1435 Solenoid 3 -
Open Circuit
Troubleshooting:
Contro- Fault Condition
ller(s) / Circuit
Affected Description
T2
Open circuit
detected on enable
S1 output.
T2 Low current
detected on left
deck raise S2
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 left
deck raise S2
output indicating
a short to ground.
T2 Open circuit
detected on left
deck raise S2
output.
T2 Low current
detected on left
deck lower S3
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 left
deck lower S3
output indicating a
short to ground.
T2 Open circuit
detected on left
deck lower S3
output.
Additional
Notes
1. Test the output circuit for an open.
2. Test for proper resistance in the component
connected to the auxiliary TEC (P75, pin
3).
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
8).
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
8).
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
8).
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
10).
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
10).
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
10).
3. Swap the T2: Auxiliary controller with a
known-good unit (contact an Authorized
Toro Distributor for assistance).
Page 3–14
Service Actions
Groundsmaster ® 4500-D/4700-D
19245SL Rev A