Toro Groundsmaster 4500-D Series Service Manual page 64

Fault
Fault Title
ID
P1165
Swashplate 1
- Signal Open
Circuit
P1167 Swashplate
1 - Validation
Failure - Position
Converge
P1169
Swashplate
1 - Invalid
Calibration Data
P116C Swashplate 1
- Signal Out
of Operational
Range
P2135 Traction Pedal
Sensor 1 Digital
vs Digital Conflict
P2136 Traction Pedal
Sensor 1 Analog
vs Digital conflict
P2503 Alternator -
Charging Too
Low
Troubleshooting:
Contro- Fault Condition
ller(s) / Circuit
Affected Description
T1
Open circuit
detected on swash
plate sensor signal.
T1 The swashplate
position is not
converging on
the swashplate
position set point.
T1 Integrity check on
calibration data
failed.
T1 Sensor signal is
valid but is outside
of operational
range.
T1 Traction pedal 1
has two digital
inputs that
independently
indicate pedal
position relative to
neutral in the FWD
or REV directions.
The two signals
are reporting
simultaneously,
which is not
physically possible.
T1 Traction pedal 1
has one digital
input and one
analog input that
independently
indicate pedal
position relative
to neutral in the
FWD or REV
directions. The
analog and digital
signals conflict with
one another.
T1 Charging system
(alternator) is
producing a
voltage that
the TEC has
determined to be
out of range on the
low side.
Additional
Notes
PTO is Check for open connector (P74, pin 28).
disabled
traction
speed is
reduced by
50%.
Traction is Check the hydraulic pump, pump controller
disabled and
and swashplate sensor. Current controlling
machine will pump is doing what it is supposed to but the
come to a pump swashplate angle is not moving to the
sudden stop. right position.
Recalibrate the traction system.
PTO is
disabled
traction
speed is
reduced by
50%.
PTO is 1. Recalibrate the traction system.
disabled
2. Replace the swashplate sensor.
traction
speed is
reduced by
50%.
TP is 1. Check the traction pedal potentiometer.
disabled.
2. Check the harness wiring (P74, pins 17,
18 and 32).
3. Check the connection points to the
potentiometer.
4. Test the traction pedal assembly.
TP is
1. Check the traction pedal potentiometer.
disabled.
2. Check the harness wiring (P74, pins 17,
18 and 32).
3. Check the connection points to the
potentiometer.
4. Test the traction pedal assembly.
1. Test the alternator using the Yanmar TNV
(Tier 4) Service Manual.
2. Check and clean the battery connections.
3. Test and charge the battery.
4. Check the alternator belt condition and
belt tension.
5. Check wiring and connectors.
6. Test the alternator wiring.
Page 3–24
Service Actions
Groundsmaster ® 4500-D/4700-D
19245SL Rev A