Troubleshooting Chart - Toro Multi Pro 5800 Service Manual

Troubleshooting Chart

The chart that follows contains suggestions that can be
used to assist in diagnosing Ultra Sonic Boom System
performance issues. These suggestions are not all--in-
clusive. Also, consider that there may be more than one
cause for a machine problem.
Problem
Light in sonic boom switch is not illu-
minated.
One of the boom lift cylinders will not
extend or retract.
Neither of the boom lift cylinders will
extend or retract.
The LED's on one of the sonic boom
sensors are not illuminated.
The LED's on both of the sonic
boom sensors are not illuminated.
Ultra Sonic Boom System (Rev. A)
NOTE: When troubleshooting an electrical problem on
your Ultra Sonic Boom System, refer to information re-
garding the sonic boom light in this section. Also, use the
Diagnostic Display (see Special Tools in this chapter) to
test Toro electronic controller (TEC) inputs and outputs.
Possible Cause
Sonic boom switch is in the MANUAL position.
Fuse D (2 amp) in sonic boom fuse block is faulty (all sonic boom
functions are affected).
Fuse B (10 amp) in sonic boom fuse block is faulty.
Loopback connector is unplugged from wire harness connector (all
sonic boom functions are affected).
Electrical power from vehicle is not available (all sonic boom func-
tions are affected).
Sonic boom switch or circuit wiring is faulty.
Boom lift switch or circuit wiring for affected lift cylinder is faulty.
Boom lift control manifold solenoid coil or circuit wiring for affected
lift cylinder is faulty.
A hydraulic problem exists with the lift cylinder, boom lift control
manifold or other hydraulic component.
Loopback connector is unplugged from wire harness connector (all
sonic boom functions are affected).
Fuse(s) in sonic boom fuse block is faulty.
Electrical power from vehicle is not available (all sonic boom func-
tions are affected).
A hydraulic problem exists with the lift cylinders, boom lift control
manifold or other hydraulic component.
The Toro electronic controller (TEC) or circuit wiring is faulty.
Sonic boom sensor or circuit wiring is faulty.
Sonic boom switch is in the MANUAL position.
Fuse A (10 amp) in sonic boom fuse block is faulty.
Sonic boom switch or circuit wiring is faulty.
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