Electrical System Checks - Suzuki Intruder 1978 Service Manual

Electrical System
Checks
Key Switch Tests
The G and M ter minals of the key switch control
the RUN and OFF circuit of the ign ition system .
The lights are operated through the termina ls
marked Band L. (See Figure 3 -4. )
Figure 3-4
To test the key switch :
1. Remove the main wiring harness connector
from the key switch terminals .
2. Set the ohmmeter to high ohm sca le (X100)
and connect one ohmmeter lead to the key
switch G terminal and the other ohmmeter
lead to M . (See Figure 3-5 .)
Figure 3-5
3. With the key switch in the RUN position, the
ohmmeter should show open circu it (co). Re -
place the switch if the needle moves off of in-
f inity
(00) .
4. Turn the key switch to OFF position . Meter
should now indi cate closed circuit (0). Replace
the switch if the needle does not move to
O.
5. Set the ohmmeter to low ohmscale (X1) and
connect one ohmmeter lead to the key switch
B termina l and the other lead to L. (See Figure
3-6.)
Figur e 3 -6
6. Turn the key switch to RUN / LIGHTS position.
The ohmmeter should indicate a closed circuit
(0). Replace the key switch if the meter does
not indicate O.
7. With the key switch positioned in RUN or OFF,
the ohmmeter must indicate an open circuit
(00).
Replace the key switch if
<Xl
is not ob-
served .
8. Reconnect the main wIring harness connector
to the key switch terminals .
ELECTRICAL SYSTEM CHECKS 3-25