Testing
Testing of the electrical system has been greatly simpli-
fied by use of the ACE
TM
Diagnostic Display, Data Log
system and ToroPC software. Before testing or replac-
ing any electrical components, it is recommended that
you verify electrical performance of the part(s) in ques-
tion by using the above mentioned tools (see Trou-
bleshooting section of this chapter).
This section will define given components, and the test
s
that can be performed on those components, when
those parts are disconnected from the electrical system.
For accurate resistance and/or continuity checks, elec-
trically disconnect the component being tested from the
circuit (e.g. unplug the seat switch connector before
doing a continuity check).
When testing electrical components for con-
tinuity with a volt-ohm meter or continuity
tester, make sure that power to the circuit has
been disconnected.
CAUTION
NOTE: Electrical troubleshooting of any 12 Volt power
connection can also be performed through voltage drop
tests without disconnection of the component.
Ignition Key Switch
The ignition (key) switch has three positions (OFF,
START and RUN). The terminals are marked as shown
in Figure 9.
The circuitry of the ignition switch is shown in the chart
(Fig. 10). With the use of a continuity tester, the switch
functions may be tested to determine whether all circuits
are being completed while the key is moved to each
position.
A
Y
B
S
I
X
Figure 9
POSITION
CONTINUITY
A
MONG
TERMINALS
OTHER
CIRC
UITS
MADE
1. OFF
NONE
NONE
2. RUN
B + I + A
X + Y
3. START
B + I + S
NONE
Figure 10
Testing Page 5 -
18 Reelmaster
®
5100-D
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