Hyundai Elantra Owners and Service Manuals

Hyundai Elantra: Ignition System / Ignition Coil

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Electrical System / 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 12V supply.
Troubleshooting
Troubleshooting
Connector assembly status test
1.
Remove the connector (A) and reinstall it.

Test for changing position of each ignition coil
A : Ignition coil w/ misfire code
B : Ignition coil w/o misfire code
   
•
Do not move with spark plug at the same time (move the ignition coil only)

Specifications
Specification
Item
Specification
Primary Coil Resistance (Ω)
0.75 ± 15% [20°C (68°F)]
Secondary Coil Resistance (kΩ)
5.9 ± 15% [20°C (68°F)]

Schematic diagrams
Circuit Diagram

Repair procedures
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the engine cover.
3.
Disconnect the ignition coil connector (A).

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

4.
Remove the ignition coil (A).
Ignition coil installation bolts :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 Ib-ft)

Installation
1.
Install in the reverse order of removal.
Inspection
1.
Measure the primary coil resistance between terminals 1 and 2.

Standard value : 0.75Ω ± 15%

    Repair procedures

    On-vehicle InspectionInspect ignition coil assembly and Perform spark test1.Check for DTCs.    • If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC...

    Spark Plug

    Description and operation DescriptionA spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture therein by means of an electric spark, while containing combustion pressure within the engine...

    Other information:

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Components and components location


    Components1. Glass panel assembly2. Deflector3. Motor assembly4. Spring base assembly5. Seth plate assembly6. Guide assembly7. Frame sub assembly8. Seal tape9. Rear drip 10. Stopper11. Sunshade assembly12. Drip rail assembly..

    Hyundai Elantra (CN7) 2021-2025 Owner's Manual: Front lamps


    (1) Front Map Lamp (2) Front Door Lamp (3) Front Room Lamp ON (4) Front Room Lamp OFF Front map lamp: Press either of these lens to turn the map lamp on or off. This light produces a spot beam for convenient use as a map lamp at night or as a personal lamp for the driver and the front passenger. Front Door Lamp (): The front or rear room lamps come on when the front or rear doors are op..

    Categories

    Rear center seat belt

    When using the rear center seat belt, the buckle with the “CENTER” mark must be used.

    WARNING

    Make sure that the seatback is locked in place when using the rear center seat belt.

    If not, the seatback may move when there is a sudden stop or collision, which could result in serious injury.

    read more

    Copyright © 2025 www.helantra7.com