Component Testing; Component Testing; Ignition Switch - Toro Sand Pro 2020 Service Manual

Component Testing

For accurate resistance and/or continuity checks, elec-
trically disconnect the component being tested from the
circuit (e.g. unplug the ignition switch connector before
doing a continuity check).
NOTE: For more component testing information, see
the Briggs and Stratton Vanguard Service and Repair
Manual for 4–Cycle, V–Twin Cylinder, OHV Engines.

Ignition Switch

The ignition (key) switch has three positions (OFF, RUN,
and START). The terminals are marked as shown. The
circuitry of the ignition switch is shown in the chart. With
the use of a multimeter (ohms setting), the switch func-
tions may be tested to determine whether continuity ex-
ists between the various terminals for each position.
Verify continuity between switch terminals.
POSITION
OFF
RUN
START
Electrical Systems
CIRCUIT
G + M + A
B + L + A
B + L + S
Page 5 – 10
CAUTION
When testing electrical components for continu-
ity with a multimeter (ohms setting), make sure
that power to the circuit has been disconnected.
G
L
A
Figure 3
HEX NUT
SWITCH
LOCK WASHER
Figure 4
OFF
Figure 5
B
M
S
KEY
45
RUN/LIGHTS
45
START
Sand Pro 2020/3020/5020