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Engine-Codes – Toyota – P0355 2007 Toyota Highlander

P0355 2007 Toyota Highlander Code - Ignition Coil 5 Primary/Secondary Circuit

Quick Answer

The P0355 diagnostic trouble code (DTC) for a 2007 Toyota Highlander indicates a problem with the Ignition Coil 5 Primary/Secondary Circuit. Common causes include Faulty ignition coil, Wiring or connection issues in the ignition coil circuit, Corrosion or damage to the ignition coil connector. 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
P0355 2007 Toyota Highlander indicates Ignition Coil 5 Primary/Secondary Circuit.
Common causes
Common causes include Faulty ignition coil, Wiring or connection issues in the ignition coil circuit, Corrosion or damage to the ignition coil connector.
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 17, 2024
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Code P0355 2007 Toyota Highlander Description

The P0355 diagnostic trouble code (DTC) for a 2007 Toyota Highlander indicates a problem with the Ignition Coil 5 Primary/Secondary Circuit. This code specifically points to an issue with the ignition coil for cylinder 5 in the engine. The ignition coil is a crucial component of the ignition system, responsible for converting the low voltage from the battery into the high voltage needed to create a spark in the spark plugs. This spark is essential for igniting the air-fuel mixture in the combustion chamber, which powers the engine.

OBDII Code P0355 2007 Toyota Highlander - Ignition Coil 5 Primary/Secondary Circuit
P0355 2007 Toyota Highlander Code - Ignition Coil 5 Primary/Secondary Circuit

Common Causes of P0355 2007 Toyota Highlander

  1. Faulty ignition coil
  2. Wiring or connection issues in the ignition coil circuit
  3. Corrosion or damage to the ignition coil connector
  4. Electrical problems in the vehicle's system
  5. Engine overheating leading to ignition coil failure

Symptoms of P0355 2007 Toyota Highlander

  1. Engine misfires
  2. Rough idling or vibrations
  3. Decreased fuel efficiency
  4. Loss of power during acceleration
  5. Engine stalling

How to Fix P0355 2007 Toyota Highlander

  1. Diagnose the issue by using a scan tool to confirm the P0355 code and checking the ignition coil for cylinder 5.
  2. Inspect the wiring and connections related to the ignition coil for any damage or corrosion.
  3. Test the ignition coil using a multimeter to check for proper resistance and continuity.
  4. Replace the faulty ignition coil if it fails the tests, ensuring proper installation and connection.
  5. Clear the DTC and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0355 2007 Toyota Highlander

The typical repair costs for addressing the Ignition Coil 5 Primary/Secondary Circuit issue in a 2007 Toyota Highlander can range from $150 to $300 for parts, including the ignition coil, and $100 to $200 for labor. However, actual costs may vary depending on the location, specific diagnosis time, labor rates, and whether genuine OEM or aftermarket parts are used. It's recommended to consult with local auto repair shops for a more accurate estimate based on individual circumstances.

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 P0355 2007 Toyota Highlander Code

1. What does OBDII code P0355 mean for a 2007 Toyota Highlander?

- OBDII code P0355 on a 2007 Toyota Highlander indicates an issue with the ignition coil 5 primary/secondary circuit.

2. What are the common symptoms of a P0355 code in a 2007 Toyota Highlander?

- Common symptoms of a P0355 code may include engine misfires, rough idling, loss of power, and in some cases, the Check Engine light may illuminate.

3. What are the possible causes of the P0355 code in a 2007 Toyota Highlander?

- The P0355 code in a 2007 Toyota Highlander 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).

4. How can I diagnose the cause of a P0355 code in my 2007 Toyota Highlander?

- Diagnosing a P0355 code typically involves checking the ignition coil for damage, inspecting the wiring and connectors for any signs of wear or corrosion, and using a scan tool to analyze the ECM data.

5. Can I still drive my 2007 Toyota Highlander with a P0355 code?

- It is not recommended to drive your 2007 Toyota Highlander with a P0355 code, as it can lead to further damage to the engine and other components. It is best to address the issue promptly.

6. How can I repair a P0355 code in my 2007 Toyota Highlander?

- To repair a P0355 code, you may need to replace the faulty ignition coil, repair or replace damaged wiring or connectors, and reset the ECM to clear the code.

7. Are there any maintenance tips to prevent the recurrence of a P0355 code in my 2007 Toyota Highlander?

- Regularly inspecting and maintaining your ignition system, including the ignition coils, wiring, and connectors, can help prevent the recurrence of a P0355 code in your 2007 Toyota Highlander.

8. Can a DIY enthusiast fix a P0355 code in a 2007 Toyota Highlander?

- Depending on your skill level and experience, you may be able to address a P0355 code in your 2007 Toyota Highlander as a DIY project. However, it is recommended to consult a professional if you are unsure.

9. How much does it typically cost to repair a P0355 code in a 2007 Toyota Highlander?

- The cost of repairing a P0355 code in a 2007 Toyota Highlander can vary depending on the underlying cause, the cost of parts, and labor rates. It is advisable to obtain quotes from reputable mechanics or repair shops.

10. Will a P0355 code in a 2007 Toyota Highlander affect fuel efficiency?

- Yes, a P0355 code in a 2007 Toyota Highlander can impact fuel efficiency due to engine misfires and performance issues. Addressing the code promptly can help improve fuel efficiency.

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