Hyundai Creta: Ignition System / Ignition Coil

Description and operation

Description
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.

Schematic diagrams

Circuit Diagram
[M/T]

[A/T]

Repair procedures

Removal
1.
Disconnect the battery nagative terminal.
2.
Remove the engine cover.
3.
Remove the center cover (A).

4.
Remove the ignition coil (A).

  
When removing the ignition coil connector, pull the lock pin (A) and push the clip (B).

Installation
1.
Install in the reverse order of removal.
Center cover installation bolts:
4.9 ~ 7.8 N.m (0.5 ~ 0.8 kgf.m, 3.6 ~ 5.8 Ib-ft)
Ignition coil installation bolts:
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 Ib-ft)
Inspection
1.
Measure the primary coil resistance between terminals (+) and (-).

Standard value: 0.75Ω ± 15%
Repair procedures
On-vehicle Inspection Inspect ignition coil assembly and Perform spark test 1. Check for DTCs.    ...

Spark Plug
Description and operation Description A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignit ...

Other information:

Hyundai Creta GS 2014-2021 Service Manual: Description and operation
Description The starting system includes the battery, starter, solenoid switch, ignition switch, inhibitor switch (A/T), clutch pedal switch (M/T), ignition lock switch, connection wires and the battery cable. When the ignition key is turned to the start position, current f ...

Hyundai Creta GS 2014-2021 Service Manual: Description and operation
Description Based on information from various sensors, the ECM can calculate the fuel amount to be injected. The fuel injector is a solenoid-operated valve and the fuel injection amount is controlled by length of injection time. The ECM controls each injector by grounding th ...

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