Ignition System Testing - Surtek MUL04 Manual De Usuario Y Garantía

7. with those in the operation manual, check the current ranges of the conveying
belt, regulator, AC generator, connector and open-circuit AC generator. If any
further diagnosis is required, refer to various kinds of automotive manuals.

9. IGNITION SYSTEM TESTING

1. Ignition Coil Testing
a. Before the operation, cool the engine and cut off the ignition coil.
b. Set the rotary switch of the meter to the 200 Ω. As prompted at the LCD
connect terminal, insert the red test lead into the Ω terminal and the black
one into the COM terminal. Test the primary coil of the ignition coil.
c. Short circuit the red and black test lead probes. Their short circuit resistance
should be less than 0.5 Ω. If it is more, check the test lead to see if it is loose or
damaged. If it is damaged, replace it with a new one.
d. Connect the red test lead probe to the primary "+" pole of the ignition coil
and the black one to the primary "-" pole of the coil. (ver Fig. 8). VSee the
detailed positions in various kinds of automotive manuals..
Fig. 8
WARNING
• The reading of the testing becomes the actual tested resistance only after the
reduction of the shortcircuit values of the test leads.
• The primary resistance is generally between 0.3 Ω and 2.0 Ω.
e. Set the rotary switch to the 200kΩ and test the secondary coil of the ignition coil.
f. Connect the red test lead probe to the secondary outlet and the black one
to the primary "-" pole. Refer to various kinds of automotive manuals for
the details.
g. The secondary resistance is generally in a range of 6 kΩ to 30 kΩ. Refer to
various kinds of automotive manuals for the details..
h. For a heater ignition coil, repeat the said testing steps.
NOTE: For a heater ignition coil, the resistance may be a little higher because the
resistance of a coil will vary with the temperatures. The higher the temperature,
the higher the resistance will be and vice versa..
2. Ignition System High-Voltage Damper Testing (see Fig. 9)
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Fig. 9
Secondary Coil