Hyundai Elantra: Ignition System / Repair procedures

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Electrical System / Ignition System / Repair procedures

On-vehicle Inspection

Inspect ignition coil assembly and Perform spark test

Check for DTCs.

•	If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. (Refer to DTC guide)

Check if sparks occur.

(1)	Remove the engine cover.

(2)	Remove the ignition coils.

(3)	Using a spark plug wrench, remove the spark plugs.

(4)	Disconnect the injector extension connectors.

(5)	Ground the spark plug to the engine.

(6)	Check if sparks occur at each spark plug while engine is being cranked.

•	Do not crank the engine for more then 5 seonds.

3.	If sparks do not occur, perform the following test.

4.	Using a spark plug wrench, install spark plugs.

5.	Install the ignition coils.

6.	Install the engine cover.

Description and operation

DescriptionIgnition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are pre-pro grammed in the memory of the ECM (Engine Control Module)...

Ignition Coil

Description and operation DescriptionAn 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...

Other information:

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

Components1. Front impact sensor (FIS)2. Supplemental Restraint System Control Module (SRSCM)3. Front impact sensor (FIS)4. Gravity side Impact Sensor (G-SIS)5. Pressure Side Impact Sensor (P-SIS)..

Hyundai Elantra (CN7) 2021-2025 Owner's Manual: ISG (Idle Stop and Go) system

The Idle Stop and Go (ISG) system automatically and temporarily shuts down the engine when the vehicle is stopped and idling to help improve fuel efficiency and reduce exhaust gas emissions. (i.e. red stop light, stop sign, and traffic jam). The engine is automatically started upon satisfying the starting conditions. The ISG system is always active, when the engine is running. Information ..

Steering wheel audio control

The steering wheel audio control switches are installed for your convenience.

NOTICE

Do not operate audio remote control buttons simultaneously.

VOLUME (VOL + / VOL -) (1)

Move the VOLUME toggle switch up to increase volume. Move the VOLUME toggle switch down to decrease volume.