Toro Groundsmaster 5900 Series Service Manual page 63

Groundsmaster ® 5900 & 5910
16227SL Rev B
Fault Code Fault Description
82 Charging Too High (12 Volt system).
84 Internal TEC Fault − Master.
85 Internal TEC Fault − Slave.
86 Master Contention Fault
(two master controllers on CAN
bus).
87
Slave Contention Fault
(two slave controllers on CAN
bus).
88 Software Version Incompatibility (slave
controller and/or InfoCenter Display
software is incompatible with currently
loaded master controller software).
89
Machine Number(s) Unknown (master
controller not recognizing model and/or
serial number entered).
90 Communication Fault (master controller
unable to establish communication with
one or more of the remaining devices on
the machine network in 2.5 seconds).
91 Master Fuse Failure
(master controller output fuses).
92
Slave Fuse Failure
(slave controller output fuses).
93 Main Power Relay Failure − Master
(no voltage present at master controller
PWR 2 or 3).
94 Main Power Relay Failure − Slave
(no voltage present at master controller
PWR 4 or slave controller PWR 2, 3 or
4).
95 eFAN RAD Fault
(one or both radiator fans overloaded or
fan controller internal fault).
96 eFAN HOC Fault
(one or both hydraulic oil cooler fans
overloaded or fan controller internal
fault).
97 24V Bus Voltage Out of Range
(less than 19 Volts or more than 30
Volts).
Page 3–25
Service Suggestions
Use InfoCenter Display to check 12V
system voltage.
Test engine alternator (see
Service Manual).
Replace the master TEC and reprogram
system software (contact an Authorized
Toro Distributor for assistance).
Replace the master TEC and reprogram
system software (contact an Authorized
Toro Distributor for assistance).
Reprogram system software (contact
your Authorized Toro Distributor for
assistance).
Reprogram system software (contact
your Authorized Toro Distributor for
assistance).
Reprogram system software (contact
your Authorized Toro Distributor for
assistance).
Enter correct machine model and serial
numbers (contact an Authorized Toro
Distributor for assistance).
Test CAN termination resistor and
circuit wiring.
Test CAN connectors and circuit wiring
at master controller, slave controller,
InfoCenter display and Yanmar engine
controller.
Test 7.5 amp fuses F−A1, F−B1, F−C1
and circuit wiring.
Test 7.5 amp fuses F−A2, F−B2, F−C2
and circuit wiring.
Test 7.5 amp fuses F−B1, F−C1 and
circuit wiring.
Test TEC power relay 2 and circuit
wiring.
Test 7.5 amp fuses F−A1, F−A2, F−B2,
F−C2 and circuit wiring.
Test TEC power relay 1 and circuit
wiring.
Clear obstructions from radiator and/or
radiator fans.
Test radiator fans and circuit wiring.
Clear obstructions from oil cooler and/or
oil cooler fans.
Test oil cooler fans and circuit wiring.
Use InfoCenter Display to check 24V
system voltage.
Test 24V alternator and circuit wiring.
Troubleshooting:
Yanmar