Component Testing; Ignition Switch - Toro Reelmaster 5210 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 of the switch).
NOTE: Electrical troubleshooting of any 12 volt power
connection can be performed through voltage drop tests
without disconnecting the component.
NOTE: Use the Diagnostic Display (see Special Tools
in this chapter) to test Electronic Control Module inputs
and outputs before further troubleshooting of an electri-
cal problem on your Reelmaster.

Ignition Switch

The ignition (key) switch has three positions (OFF, RUN
and START). The switch is mounted on the control con-
sole.
Testing
1. Before disconnecting the ignition switch for testing,
the switch and its circuit wiring should be tested as an
ECM input with the Diagnostic Display (see Diagnostic
Display in the Troubleshooting section of this chapter).
2. If the Diagnostic Display verifies that ignition switch
and circuit wiring are functioning correctly, no further
switch testing is necessary.
3. If the Diagnostic Display determines that ignition
switch and circuit wiring are not functioning correctly,
test ignition switch as follows:
A. Remove outside control arm cover to gain access
to ignition switch (see Control Arm Disassembly in
the Service and Repairs section of this chapter). Dis-
connect harness electrical connector from the
switch.
B. With the use of a multimeter (ohms setting), the
switch functions may be tested to determine whether
continuity exists between the various terminals for
each switch position. The ignition switch terminals
are marked as shown in Figure 24. The circuitry of
this switch is shown in the chart below. Verify conti-
nuity between switch terminals.
POSITION
OFF NONE
RUN B + I + A, X + Y
START B + I + S
C. Replace ignition switch if necessary.
Reelmaster 5010 Series
CIRCUIT
Page 5 - - 23
NOTE: See the Kubota Workshop Manual: 05 Series
Engine for additional electrical component repair in-
formation.
CAUTION
When testing electrical components for continu-
ity with a multimeter (ohms setting), make sure
that power to the circuit has been disconnected.
D. If ignition switch tests correctly and circuit prob-
lem still exists, check wire harness (see Wiring Sche-
matic and Circuit Drawings in Chapter 9 -- Electrical
Diagrams).
E. Connect harness electrical connector to the igni-
tion switch.
F. Install control arm cover to machine (see Control
Arm Assembly in the Service and Repairs section of
this chapter).
OFF
Figure 23
A
B
Y
S
I
X
SERIAL NUMBER
BELOW 310000000
Figure 24
Rev. B
45 °
RUN
45 °
START
A
S
Y
B
X
I
SERIAL NUMBER
ABOVE 310000000
Electrical System