2015 Hyundai Sonata P0352 Cylinder 2 Ignition Coil

2015 Hyundai Sonata


  • 2.4L Inline-4 Engine
  • Horsepower: Approximately 185 hp
  • Torque: Approximately 178 lb-ft


  • 6-speed automatic transmission

Fuel Economy:

  • The EPA estimated fuel economy is around 24-25 MPG city and 35-37 MPG highway.

If you’re a proud owner of a 2015 Hyundai Sonata with the 2.4L engine, encountering the diagnostic trouble code (DTC) P0352 can be quite concerning. Fear not, for we’re here to demystify this code, explaining its significance and offering guidance on effectively addressing it. The ignition coil circuit for cylinder 2 is closely linked to the P0352 code and has the potential to impact your vehicle’s performance. Let’s dive into the details and explore the steps you can take to diagnose and resolve this issue.

Understanding P0352 Code:

The Engine Control Module (ECM) activates the P0352 code when it detects a malfunction within the ignition coil circuit for cylinder 2. It points to a problem with the electrical circuit responsible for delivering power to the ignition coil for cylinder 2. Ignition coils play a crucial role in sparking the spark plugs, leading to combustion in the engine.


Probable Causes of P0352 on a 2015 Hyundai Sonata:

  • Faulty Ignition Coil: A malfunctioning or damaged ignition coil for cylinder 2 can lead to insufficient spark generation, affecting engine performance.
ignition coil

A vehicle’s Ignition Coil serves a pivotal role in the engine’s ignition system. It plays a vital part in the combustion process that powers the vehicle. Functioning as a high-voltage transformer, the ignition coil takes the relatively low voltage from the battery and converts it into a much higher voltage necessary to create a powerful spark at the spark plug.

  • Wiring Issues: Damaged wires, connectors, or corroded terminals within the ignition coil circuit can disrupt the flow of electricity.
  • Poor Connections: Loose or poor connections between the ignition coil and the ECM can cause irregular electrical signals.
  • ECM Problems: A malfunctioning Engine Control Module (ECM) might not provide the necessary commands for proper ignition coil operation.

Steps to Diagnose and Resolve P0352:

  1. Visual Inspection: Start by inspecting the ignition coil and its surrounding components for any visible signs of damage, such as cracks, burns, or corrosion.
  2. Check Wiring and Connectors: Examine the wiring and connectors associated with the ignition coil circuit. Repair or replace any damaged components.
  3. Test Ignition Coil: Using a multimeter, measure the resistance of the ignition coil for cylinder 2. Compare the readings to manufacturer specifications. If the resistance is significantly off, consider replacing the ignition coil.
  4. ECM Inspection: If other potential causes have been ruled out, perform a diagnostic scan to assess the ECM’s functionality. An ECM malfunction might require professional attention.
  5. Clear Codes and Test: After addressing the issue, clear the P0352 code using an OBD-II scanner. Take the vehicle for a test drive to ensure that the code doesn’t reappear and that the engine performs optimally.

The P0352 engine code on a 2015 Hyundai Sonata points to a potential problem within the ignition coil circuit for cylinder 2. Timely diagnosis and resolution of this issue are vital to maintaining your vehicle’s performance and preventing further complications. While some troubleshooting can be done by vehicle owners, seeking assistance from a certified Hyundai mechanic for thorough diagnostics and repairs is recommended. Regular maintenance and prompt attention to engine codes can help ensure a smooth and reliable driving experience in your Hyundai Sonata.

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