Troubleshooting Chart - Toro Multi Pro 1200 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 actuators will not
extend or retract.
Neither of the boom actuators 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.
2 Amp fuse in sonic boom fuse block is faulty (all sonic boom func-
tions are affected).
Upper, middle right fuse (7.5 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 boom actuator is faulty.
A problem exists with the affected boom actuator.
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 problem exists with both boom actuators.
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.
Upper, middle left fuse (7.5 Amp) in sonic boom fuse block is faulty
(diagnostic lamp also affected).
Sonic boom switch or circuit wiring is faulty.
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