AutoCodes – KIA – P0354 KIA

P0354 KIA Code - Ignition Coil 4 Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 4, Ignition Coil 4 harness is open or shorted, Ignition Coil 4 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0354 KIA indicates Ignition Coil 4 Primary/Secondary Circuit.
Common causes: Common causes include Faulty Ignition Coil 4, Ignition Coil 4 harness is open or shorted, Ignition Coil 4 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 4,166

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0354 KIA Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

OBDII Code P0354 KIA - Ignition Coil 4 Primary/Secondary Circuit - AutoCodes.com — P0354 KIA Code - Ignition Coil 4 Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0354 KIA?

Faulty Ignition Coil 4
Ignition Coil 4 harness is open or shorted
Ignition Coil 4 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0354 KIA?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0354 KIA code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0354 KIA code?

Need more information on how to fix the P0354 KIA code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0354 KIA code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0354 KIA Code

1. What are the common symptoms of OBDII code P0354 in a KIA related to the Ignition Coil 4 Primary/Secondary Circuit?

Symptoms may include engine misfires, rough idling, loss of power, and potential stalling of the vehicle.

2. What are the possible causes of OBDII code P0354 in a KIA?

Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a problem with the engine control module (ECM).

3. How can I diagnose the issue with OBDII code P0354 in my KIA?

Diagnosis typically involves using a scan tool to check for the specific code, inspecting the ignition coil and related components for damage, and testing the circuit for continuity.

4. Can a DIYer repair OBDII code P0354 in a KIA?

Depending on your experience and tools available, DIY repair may be possible by replacing the faulty ignition coil, repairing damaged wiring, or clearing the code with a scan tool after addressing the issue.

5. What are some tips for repairing OBDII code P0354 in a KIA?

Ensure the ignition coil is properly connected, check for any visible damage to wiring, use a multimeter to test the circuit, and consider consulting a professional if needed.

6. Is it safe to continue driving with OBDII code P0354 in a KIA?

It is generally not recommended to drive with this code unresolved, as it can lead to further damage to the engine and possibly result in a breakdown.

7. Can weather conditions affect OBDII code P0354 in a KIA?

Extreme weather conditions such as heavy rain or high humidity can potentially exacerbate ignition coil issues associated with this code.

8. How long does it typically take to repair OBDII code P0354 in a KIA?

The repair time can vary depending on the exact cause of the issue and your level of expertise, but it may take anywhere from 30 minutes to a few hours to complete the repair.

9. Will resetting the OBDII code P0354 in a KIA make it go away permanently?

Simply resetting the code without addressing the underlying issue will not fix the problem permanently; it is crucial to diagnose and repair the root cause of the code.

10. Are there any preventive measures to avoid OBDII code P0354 in a KIA?

Regularly inspecting and maintaining the ignition system, replacing spark plugs and ignition coils as recommended, and addressing any issues promptly can help prevent this code from occurring.