Toro Groundsmaster 4300-D Service Manual page 255

Using Machine Faults (continued)
Groundsmaster ® 4300-D
16226SL Rev C
Machine Fault Table
Fault Code
1 Excessive engine coolant
temperature (above 105°C)
caused PTO to disengage
2 Excessive engine coolant
temperature (above 115°C)
caused engine to stop
3 One of the TEC output fuses (7.5
A) is damaged
4 IPE voltage is low indicating that
the TEC fuses or TEC is damaged
5 Main power relay is damaged
6 The key switch was held in the
S
TART
30 seconds or the key switch is
damaged
7 TEC software needs to be
reprogrammed
8 Engine alternator charging is too
high
9 Engine alternator charging is too
low
10 Engine has not been seen on the
CAN-bus for 10 seconds
12 InfoCenter has not been seen on
the CAN-bus for 1 second
13 Key switch is damaged
15 Engine speed switch is damaged
19 Engine coolant temperature
sensor circuit has open or short
20 Pressure sensor circuit is
out-of-range
24 Joystick raise and lower switches
closed at same time
26 TEC output current to energize
start relay is excessive
27 TEC output current to fuel pump
is excessive
Fault Description
position for more than
Page 5–31
Service Suggestions
Check the radiator and screen for
debris buildup
Check the engine cooling fan and
drive belt
Check the engine coolant level
Check the radiator and screen for
debris buildup
Check the engine cooling fan and
drive belt
Check the engine coolant level
Check the TEC output fuses
Check the TEC fuses
Consider that the TEC is damaged
Check the main power relay and
circuit wiring
Cycle the key switch
Check the fuel level in the fuel tank
Check the key switch and circuit
wiring
Check the fuel pump
Contact Toro Distributor for
reprogramming assistance
Check the engine alternator
Check the alternator drive belt
Check the engine alternator and
circuit wiring
Check the switch and circuit wiring
Check the control arm engine speed
switch and circuit wiring
Check the engine coolant sensor
and circuit wiring
Check the pressure sensor and
circuit wiring
Check the joystick switches and
circuit wiring
Check the start relay and circuit
wiring
Check the fuel pump and circuit
wiring
Electrical System: Troubleshooting