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Engine-Codes – Toyota – P0352 2009 Toyota Prius

P0352 2009 Toyota Prius Code - Ignition Coil 2 Primary/Secondary Circuit

Quick Answer

The P0352 code for a 2009 Toyota Prius specifically refers to an issue with the Ignition Coil 2 Primary/Secondary Circuit. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the engine control module (ECM). 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 2009 Toyota Prius indicates Ignition Coil 2 Primary/Secondary Circuit.
Common causes
Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the engine control module (ECM).
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 Sep 12, 2024
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Code P0352 2009 Toyota Prius Description

The P0352 code for a 2009 Toyota Prius specifically refers to an issue with the Ignition Coil 2 Primary/Secondary Circuit. This code indicates that there is a malfunction in the electrical circuit that controls the ignition coil for cylinder 2. The ignition coil is a crucial component of the vehicle's ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel mixture in the engine cylinders. When the ignition coil malfunctions, it can lead to misfires, rough idling, poor fuel economy, and even engine stalling.

OBDII Code P0352 2009 Toyota Prius - Ignition Coil 2 Primary/Secondary Circuit
P0352 2009 Toyota Prius Code - Ignition Coil 2 Primary/Secondary Circuit

Common Causes of P0352 2009 Toyota Prius

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the ignition coil circuit
  3. Issues with the engine control module (ECM)
  4. Corrosion or poor connections in the ignition coil circuit
  5. Environmental factors such as extreme heat or moisture affecting the ignition coil

Symptoms of P0352 2009 Toyota Prius

  1. Engine misfires
  2. Rough idling or vibrations
  3. Decreased fuel efficiency
  4. Engine stalling
  5. Illumination of the check engine light

How to Fix P0352 2009 Toyota Prius

  1. Diagnose the issue by using a scan tool to read the code and identify the specific problem with the ignition coil 2 circuit.
  2. Inspect the ignition coil, wiring, and connectors for any visible damage or corrosion. Replace any faulty components.
  3. Test the ignition coil with a multimeter to ensure it is functioning correctly. Replace the ignition coil if necessary.
  4. Clear the diagnostic trouble codes from the vehicle's ECM and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the issue.

Cost to Fix P0352 2009 Toyota Prius

The typical repair costs for addressing a P0352 code on a 2009 Toyota Prius can vary depending on the extent of the issue and the specific parts that need to be replaced. In general, replacing an ignition coil can cost between $100 and $300, while labor costs can range from $80 to $150 per hour. Overall, the total repair cost for this issue could range from $200 to $500 or more, depending on the specific circumstances. It is advisable to consult with a trusted mechanic or auto repair shop to get a more accurate estimate based on your individual situation.

What does this mean?

Tech Notes for P0352 2009 Toyota Prius

Ignition Coil "B" refers to coil #2

When is the Code Detected?

Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails when the ECM does not receive a valid pulse signal from the ignition coil.

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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 2009 Toyota Prius Code

1. What does OBDII code P0352 on a 2009 Toyota Prius indicate?

- OBDII code P0352 for a 2009 Toyota Prius signals an issue with the Ignition Coil 2 Primary/Secondary Circuit.

2. What are the common symptoms of a P0352 code in a 2009 Toyota Prius?

- Common symptoms of a P0352 code in a 2009 Toyota Prius may include engine misfires, rough idling, loss of power, and illuminated Check Engine light.

3. What are the potential causes of a P0352 code in a 2009 Toyota Prius?

- The P0352 code in a 2009 Toyota Prius can be triggered by a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or issues with the PCM (Powertrain Control Module).

4. How can I diagnose a P0352 code in my 2009 Toyota Prius?

- To diagnose a P0352 code in a 2009 Toyota Prius, you can use an OBDII scanner to retrieve the code, visually inspect the ignition coil and its connections, and perform tests to check for proper voltage and continuity in the circuit.

5. Can I still drive my 2009 Toyota Prius with a P0352 code?

- It is not recommended to drive your 2009 Toyota Prius with a P0352 code as it can lead to further engine damage or performance issues. It's advisable to address the problem promptly.

6. How do I repair a P0352 code in a 2009 Toyota Prius?

- Repairing a P0352 code in a 2009 Toyota Prius typically involves replacing the faulty ignition coil, repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

7. Is it necessary to reset the PCM after fixing a P0352 code in a 2009 Toyota Prius?

- It is recommended to reset the PCM after fixing a P0352 code in a 2009 Toyota Prius to clear the error code and allow the system to relearn the corrected parameters.

8. Are there any preventive measures to avoid a P0352 code in a 2009 Toyota Prius?

- Regular maintenance of the ignition system, including timely replacement of spark plugs and ignition coils, can help prevent issues like a P0352 code in a 2009 Toyota Prius.

9. Can a DIY enthusiast fix a P0352 code in a 2009 Toyota Prius?

- Depending on your skill level and access to tools, a DIY enthusiast may be able to fix a P0352 code in a 2009 Toyota Prius by following repair guides and procedures carefully.

10. How much does it cost to repair a P0352 code in a 2009 Toyota Prius at a mechanic?

- The cost of repairing a P0352 code in a 2009 Toyota Prius at a mechanic can vary based on the exact cause of the issue, but it typically ranges from $150 to $400 for parts and labor.

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