Kia Carens: Ignition System / Ignition Coil Description and operation
An ignition coil is an induction coil in an engine's ignition system which transforms
the battery's low voltage to the high voltage needed to create an electric spark
in the spark plugs to ignite the fuel. Coils have an internal resistor while
others rely on a resistor wire or an external resistor to limit the current
flowing into the coil from the battery 12 V supply.
On-vehicle Inspection
Inspect ignition coil assembly and
Perform spark test
1.
Check for DTCs.
  ...
Specification
Item
Specification
Primary Coil Resistance (Ω)
0.79 ± 15% [20°C (68°F)]
Secondary Coil Res ...
Other information:
Removal
1.
Remove the fuel filler neck assembly after unscrewing the mounting bolts
(A).
2.
Lift the vehicle.
3.
Remove the left - rear wheel & tire and the wheel house.
...
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the VIS valve connector.
3.
Measure resistance between VIS valve terminals 1 and 2.
Specification: Refer to "Speci ...