Toro 2020, 5020, 3020 service manual Component Testing, Ignition Switch

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.

CAUTION

When testing electrical components for continu- ity with a multimeter (ohms setting), make sure that power to the circuit has been disconnected.

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	CIRCUIT
OFF	G + M + A
RUN	B + L + A
START	B + L + S

G B

M

LS

A

Figure 3

HEX NUT KEY

SWITCH	LOCK WASHER
	Figure 4
	OFF
	45 °

RUN/LIGHTS

45 °

START

Figure 5

Electrical Systems Page 5 – 10 Sand Pro 2020/3020/5020