-
１４
-
INSERT:
·
Black lead in COM terminal.
·
Red lead in V/
Ω
RPM
terminal.
·
Disconnect the coil from the
vehicle wiring harness.
·
NOTE
:
The resistance in the meter
leads must be subtracted to get
an accurate measurement at
the 0.50-2.0 range. Short the
leads together and press the
“TEL” Button . The meter will automatically
subtract the resistance in the leads.
·
Connect the negative (-) lead to the negative (-) terminal on the coil.
·
Connect the positive (+) lead to the positive (B+) terminal on the coil.
Typical measurements are between0.50-2.0
Ω
’s consult the manufacturer’s
specifications for required resistance measurements.
[2] Ignition Coil , Secondary Resistance Test (
Ω
)
This test checks secondary winding resistance .
IMPURTANT:
Test the ignition coil
cold and hot
·
Set the rotary switch to the
Resistance (
Ω
) setting .
INSERT:
·
Black lead in COM terminal .
·
Red lead in V/
Ω
RPM terminal .
·
Disconnect the coil from the
vehicle wiring harness .
·
Connect the negative (-) lead to
the high tension terminal on the
coil .
·
Connect the positive (+) lead to
the positive (B+) terminal on the coil.
Typical measurements are between 6000-30000
’s Consult the manufacturer’s
specifications for required resistance measurements.
[3] Secondary Ignition Wire Resistance Test (
Ω
)
This test checks for open circuits or high resistance in the secondary (sparkplug)
wires.
IMPORTANT: Twist and bend the sparkplug wire while measuring the
resistance for this test .
·
Set the rotary switch to the Resistance (
Ω
) setting.
INSERT:
·
Black lead in
COM
terminal.
·
Red lead in
V/
Ω
/RPM
terminal.
·
Connect the test probes to opposite ends of the sparkplug wire.
Typical measurements are approximately 1.000
Ω
’s per inch of wire . For
example, 10 inch cable=10.000
Ω
.
[4] Distributor Cap/Rotor Resistance Test (
Ω
)
This test checks for open circuits or high.
Resistance in the distributor cap and rotor.
·
Set the rotary switch to the
Resistance (
Ω
).
INSERT:
·
Black lead in
COM
terminal.
·
Red lead in
V/
Ω
/RPM
terminal.
Dist. Cap Center Connector Test:
Connect the test probes to opposite ends of the distributor cap terminal .
In general, resistance (
Ω
) should be 5k-10k. Refer to the manufacturer
’s
