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Engine-Codes – Toyota – P0352 Toyota

P0352 Toyota Code - Ignition Coil 2 Primary/Secondary Circuit

Quick Answer

The P0352 code for Toyota vehicles indicates a problem with the ignition coil 2 primary/secondary circuit. Common causes include Faulty ignition coil, Wiring issues in the ignition coil circuit, Corrosion or loose connections in the circuit. 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
P0352 Toyota indicates Ignition Coil 2 Primary/Secondary Circuit.
Common causes
Common causes include Faulty ignition coil, Wiring issues in the ignition coil circuit, Corrosion or loose connections in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0352 Toyota Description

The P0352 code for Toyota vehicles indicates a problem with the ignition coil 2 primary/secondary circuit. The ignition coil plays a crucial role in the ignition system, as it is responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel in the combustion chamber. When this circuit malfunctions, it can lead to issues with starting the engine, misfiring, rough idling, and overall poor performance. Ignoring this code can potentially cause damage to the engine over time as the fuel mixture may not be ignited properly, leading to increased emissions and decreased fuel efficiency.

OBDII Code P0352 Toyota - Ignition Coil 2 Primary/Secondary Circuit
P0352 Toyota Code - Ignition Coil 2 Primary/Secondary Circuit

Common Causes of P0352 Toyota

  1. Faulty ignition coil
  2. Wiring issues in the ignition coil circuit
  3. Corrosion or loose connections in the circuit
  4. Faulty spark plugs
  5. Engine control module (ECM) failure

Symptoms of P0352 Toyota

  1. Engine misfires
  2. Rough idling
  3. Difficulty starting the engine
  4. Loss of power
  5. Poor fuel efficiency

How to Fix P0352 Toyota

  1. Diagnose the issue by checking the ignition coil, wiring, and connections for any visible damage or corrosion.
  2. Test the ignition coil using a multimeter to check for proper resistance.
  3. Replace the faulty ignition coil if necessary.
  4. Check and replace spark plugs if they are worn out or causing the issue.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the problem has been resolved.

Cost to Fix P0352 Toyota

The cost of repairing the ignition coil 2 primary/secondary circuit issue can vary depending on the specific Toyota model, the quality of the parts used, and the labor rates in your area. On average, replacing an ignition coil can cost between $100 and $250, while the cost of labor can range from $50 to $150 per hour. The total repair cost could be anywhere from $150 to $400, but it's advisable to get a personalized quote from a trusted auto repair shop.

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Information for Specific Toyota Models

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 P0352 Toyota Code

1. What are the common symptoms of OBDII code P0352 in a Toyota related to the Ignition Coil 2 Primary/Secondary Circuit?

- Common symptoms include engine misfires, rough idle, loss of power, and in some cases, the Check Engine light may illuminate.

2. What are the possible causes of OBDII code P0352 in a Toyota indicating an issue with the Ignition Coil 2 Primary/Secondary Circuit?

- The code P0352 can be triggered by a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the Engine Control Module (ECM).

3. How can I diagnose the source of OBDII code P0352 in my Toyota related to the Ignition Coil 2 Primary/Secondary Circuit?

- Diagnose by visually inspecting the ignition coil and its wiring, conducting resistance tests on the coil, checking for proper voltage supply, and using a scan tool to monitor live data.

4. Is it safe to drive my Toyota with OBDII code P0352, Ignition Coil 2 Primary/Secondary Circuit issue?

- It is not recommended to drive the vehicle with this code active, as it can lead to further damage to the engine or catalytic converter. Prompt repairs are advised.

5. Can I replace the ignition coil myself to fix OBDII code P0352 in my Toyota?

- Yes, replacing the ignition coil is a common repair for this code. Ensure you follow the manufacturer's instructions and use the correct replacement part for your Toyota model.

6. Are there any tips for preventing OBDII code P0352 related to the Ignition Coil 2 Primary/Secondary Circuit in my Toyota?

- Regular maintenance, such as checking and replacing spark plugs and ignition coils at recommended intervals, can help prevent issues that trigger this code.

7. Will resetting the Check Engine light resolve OBDII code P0352 in my Toyota?

- Resetting the Check Engine light may temporarily turn it off, but if the underlying issue causing the code is not addressed, the light will likely reappear.

8. How much does it typically cost to repair OBDII code P0352 in a Toyota due to the Ignition Coil 2 Primary/Secondary Circuit issue?

- The cost can vary depending on the root cause of the problem, but on average, the repair cost for this code ranges from $100 to $300, including parts and labor.

9. Can a faulty spark plug cause OBDII code P0352 in a Toyota?

- While a faulty spark plug is not a direct cause of P0352, it can contribute to ignition system issues that may trigger the code. It's recommended to inspect and replace spark plugs if necessary.

10. How long does it take to repair OBDII code P0352 related to the Ignition Coil 2 Primary/Secondary Circuit in a Toyota?

- The repair time can vary based on the exact cause of the issue and the technician's expertise. In general, this repair can be completed in 1-2 hours.

Discuss the causes and fixes for P0352 Toyota OBDII Code

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  • replaced coil. 5 minute job. $87 at oreillys. toyota wanted $280 parts and labor. runs great.

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  • Thank you for the information!!

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  • hi i have same code but misfire is intermittent not always i just swap with coil no 2 with coil no 3 then i notice no more misfires

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  • Could have been a bad connection. If it happens again auto zone,etc will usually read the trouble code for free. If it is cylinder #3 then you will know that coil pack is bad. My light came on intermittently for awhile but got gradually worse. It would misfire when warmed up. If it sat awhile and cooled down,it ran good for a short time. These coil packs sometimes get gradually worse. Good luck.

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