TROUBLESHOOTING
Continuity and Resistance Check
1.
Disconnect the battery terminal or wire
so
there
is
no voltage between the check points.
2. Contact
the
two leads{)f an ohmmeter
to
each of
the check points;
If the circuit has diodes, reverse the two leads
and check again.
When
contacting
the
negative lead
to
the
diode
positive side and the positive
lead
to
the
negative side, there should be continuity.
When
contacting the two leads
in
reverse, there
should be no continuity.
Finding a
Short
Circuit
1.
Remove
the
blown fuse and disconnect
all
loads
of
the
fuse.
2.
Connect a test lamp in place of the fuse.
3. Establish conditions in which the test lamp
comes on.
(Refer
to
component operations.)
. Example:
® - Ignition S/Won
@ - Ignition
S/W
and S/W 1 on
© - Ignition
S/W,
s/W 1 and Relay on
(Connect
the
Relay) and
S/W
2 off
(or Disconnect
S/W
2)
4.
DiSC{)nnect
and reconnect
the
connectors while
watching
the
test lamp.
The short
lies
between the connector where the
test lamp stays lit and
the
connector where the
lamp goes out .
. 5. Find
the
exact location
of
the short by lightly
shaking the problem wire along the body.
Ohmmeter
Ohmmeter
Disconnect
SIW2
4 To
19oition
SIW
:
fG
Terminal
Fuse
Case
Short ®
S/W
1
Short ®
---
Disconnect
Relay
Short@)
-
_--
Disconnect
Solenoid
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