Multi Pro 5700 - Toro

Troubleshooting Chart
The chart that follows contains suggestions that can be
used to assist in diagnosing Sonic Boom System performance
issues. These suggestions are not all--inclusive.
Also, consider that there may be more than one cause
for a machine problem.
NOTE: When troubleshooting an electrical problem on
your Sonic Boom System, refer to information regarding
the sonic boom light in this section. Also, use the Diagnostic
Display (see Special Tools in this chapter) to test
electronic control unit (ECU) inputs and outputs.
Problem
Sonic boom light is not illuminated.
Possible Cause
Sonic mode switch is in the OFF position.
5 amp or 10 amp fuse in sonic boom fuse block is faulty.
Electrical power from vehicle is not available (all sonic boom functions
are affected).
Sonic boom light or circuit wiring is faulty.
Sonic mode switch or circuit wiring is faulty.
LED on one of the sonic boom sensors
is not illuminated.
LED on both of the sonic boom sensors
is not illuminated.
Sonic boom sensor or circuit wiring is faulty.
Sonic mode switch is in the OFF position.
5 amp fuse in sonic boom fuse block is faulty.
Sonic mode switch or circuit wiring is faulty.
One of the boom actuators will not
retract.
30 amp auto resetting fuse for affected boom actuator is faulty.
Power switch relay or circuit wiring for affected boom actuator is
faulty.
One or both of the H--bridge relays or circuit wiring for the affected
boom actuator is faulty.
Boom actuator switch or circuit wiring for affected boom actuator is
faulty.
Affected boom actuator or circuit wiring is faulty.
Neither of the boom actuators will
retract.
Loop back connector is unplugged from wire harness connector.
5 amp or 10 amp fuse in sonic boom fuse block is faulty.
Electrical power from vehicle is not available (all sonic boom functions
are affected).
Both of the boom actuator 30 amp auto resetting fuses are faulty.
ECU or circuit wiring is faulty.
Sonic Boom System (Optional Kit)
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Multi Pro 5700--D