Hyundai Accent (HC): Engine Electrical System / Ignition System

Hyundai Accent (HC) (2017 - 2022) Service Manual / Engine Electrical System / Ignition System

Contents:

Description and Operation

- Description Ignition 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).The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM. The ignition coil is activated, and timing is controlled.

Repair procedures

- On-vehicle Inspection

Inspect ignition coil assembly and Perform spark test

1.Check for DTCs.

   

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

2.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 4 injector 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.

Troubleshooting

- Troubleshooting

SymptomSuspect AreaRemedy
Engine will not start or is hard to start (Cranks OK)Ignition lock switchInspect ignition lock switch, or replace as required
Ignition coilInspect ignition coil, or replace as required
Spark plugsInspect spark plugs, or replace as required
Ignition wiring disconnected or brokenRepair wiring, or replace as required
Rough idle or stallsIgnition wiringRepair wiring, or replace as required
Ignition coilInspect ignition coil, or replace as required
Engine hesitates / poor accelerationSpark plugs and spark plug cablesInspect spark plugs / cable, or replace as required
Ignition wiringRepair wiring, or replace as required
Poor mileageSpark plugs and spark plug cablesInspect spark plugs / cable, or replace as required

Ignition Coil ➤

Spark Plug ➤

Battery

Ignition Coil

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Rear Seat Back Cover

- Component Location 1. Rear seat back cover [LH] 2. Rear seat back cover [RH] - Replacement     Put on gloves to protect your hands.     • Use a plastic panel removal tool to remove interior trim pieces without marring the surface. • Be careful not to bend or scratch the trim and panels. [LH] 1.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Timing Chain Cover

- Removal     • Use fender covers to avoid damaging painted surfaces. • To avoid damage, unplug the wiring connectors carefully while holding the connector portion.     • Mark all wiring and hoses to avoid misconnection. 1.Disconnect the battery negative terminal. 2.Remove the engine cover.(Refer to Engine and Transaxle Assembly - "Engine Cover") 3.

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