ignition

Ignition Control Module

for 2015 Kia Forte 1.8L I4 · FWD

Editorial review:Chris Hackleman — Master Technician · 20+ years · Jeff Moore — Master Lexus & Toyota Mechanic · 20+ years

Difficulty

Moderate

Time

1.0 h

Tools

Steps

✓Expert-verified. Personally reviewed and approved by OLP's master technicians (Chris Hackleman & Jeff Moore — 20+ years each). Always follow the vehicle's factory service information and torque specs.

This procedure covers the replacement of the ignition control module (also known as the ignition coil driver module) on a 2015 Kia Forte with the 1.8L I4 engine.

Warnings

⚠Allow engine to cool completely before starting work to prevent burns from hot components

⚠Disconnecting the battery will erase radio presets and may require resetting power windows and other systems

ℹ️The ignition control module controls spark timing and must be handled carefully to avoid damage to electronic components

Tools required

10mm socket and ratchetEssential

Torque wrenchEssential

Flathead screwdriver

Electrical contact cleaner

Dielectric grease

Parts

Ignition control module × 1 — Use OEM specification
Engine cover clips (if damaged) × 4 — Use OEM specification

Preparation

Park vehicle on level ground and engage parking brake
Turn ignition off and remove key
Allow engine to cool for at least 30 minutes
Open hood and secure with prop rod
Disconnect negative battery cable and wait 3 minutes for system discharge

Procedure

1
Remove engine cover
Remove the plastic engine cover by pulling upward firmly on all four corners to release the retaining clips. The cover is not bolted and uses push-fit clips only. Set cover aside.
2
Locate ignition control module
The ignition control module is mounted on the driver's side of the engine, typically near the valve cover. It is a rectangular black box with a multi-pin electrical connector and may have individual connectors to each ignition coil.
3
Disconnect electrical connectors
Press the locking tab on the main wiring harness connector and carefully pull straight out to disconnect from the ignition control module. If individual coil connectors are present, disconnect each one by pressing the release tab and pulling away from the coils. Label connectors if necessary for reassembly reference.
⚠Do not pull on wires; only pull on the connector body to avoid damaging the wiring harness
4
Remove mounting bolts
Using a 10mm socket, remove the bolts securing the ignition control module to its mounting bracket or engine block. There are typically 2-3 bolts. Keep bolts organized for reinstallation.
Torque spec
Mounting Bolts26 Nm (19 lb-ft)
5
Remove ignition control module
Carefully lift the ignition control module away from the engine. Note the orientation and position for proper installation of the replacement unit. Check the mounting surface for debris or corrosion.
6
Prepare mounting surface
Clean the mounting surface on the engine or bracket with a clean rag. Remove any dirt, oil, or corrosion. If electrical connectors show corrosion, spray with electrical contact cleaner and allow to dry completely.
7
Install new ignition control module
Position the new ignition control module in the same orientation as the original. Align mounting holes with the bracket or engine block. Start all mounting bolts by hand to ensure proper thread engagement before tightening.
8
Torque mounting bolts
Using a torque wrench, tighten the mounting bolts to 26.0 Nm (19.0 lb-ft) in a crossing pattern if multiple bolts are present. This ensures even pressure and proper seating of the module.
Torque spec
Mounting Bolts26 Nm (19 lb-ft)
9
Reconnect electrical connectors
Apply a small amount of dielectric grease to the inside of each electrical connector if desired for corrosion protection. Reconnect the main wiring harness connector to the ignition control module, pressing firmly until the locking tab clicks into place. Reconnect any individual coil connectors, ensuring each locks securely.
10
Reinstall engine cover
Position the engine cover over the engine, aligning the clips with their mounting grommets. Press down firmly on all four corners until each clip snaps into place and the cover is secure.
11
Reconnect battery
Reconnect the negative battery cable to the battery terminal and tighten securely. Reset clock, radio presets, and any other electronic settings as needed.

Reassembly

Ensure all electrical connectors are fully seated and locked
Verify engine cover is properly secured at all four clip locations
Double-check that no tools or parts have been left in the engine bay

Verification

Start the engine and verify it runs smoothly without misfires or rough idle
Check for any diagnostic trouble codes using an OBD-II scanner; there should be no ignition-related codes
Rev engine gently to 2000-3000 RPM and confirm smooth operation without hesitation
Test drive vehicle to verify normal acceleration and no check engine light illumination
Verify all electrical systems reset properly after battery reconnection (windows, radio, etc.)

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