AutoCodes – Toyota – P0355 Toyota

P0355 Toyota Code - Ignition Coil 5 Primary/Secondary Circuit

Quick Answer

A Direct Ignition System (DIS) is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil assembly and one spark plug is connected to the end of each secondary wiring. Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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: P0355 Toyota indicates Ignition Coil 5 Primary/Secondary Circuit.
Common causes: Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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 34,403

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 Aug 26, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0355 Toyota Description

A Direct Ignition System (DIS) is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil assembly and one spark plug is connected to the end of each secondary wiring. A powerful voltage, generated in the secondary wiring, is applied directly to each spark plug. The spark of the spark plugs passes from the center electrode to the ground electrode.
The Engine Control Module (ECM) determines the ignition timing and transmits the ignition (IGT) signals to each cylinder. Using the IGT signal, the ECM turns the power transistor inside the igniter on and off. The power transistor, in turn, switches the current supplied to the primary coil on and off. When the current to the primary coil is cut off, a powerful voltage is generated in the secondary coil. This voltage is applied to the spark plugs, causing them to spark inside the cylinders. As the ECM cuts the current to the primary coil, the igniter sends back an ignition confirmation (IGF) signal to the ECM for each cylinder ignition.
If the ECM does not receive any IGF signals despite transmitting the IGT signal, it interprets this as a fault in the igniter and stores a Diagnostic Trouble Code (DTC).

OBDII Code P0355 Toyota - Ignition Coil 5 Primary/Secondary Circuit - AutoCodes.com — P0355 Toyota Code - Ignition Coil 5 Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0355 Toyota?

Faulty Ignition Coil 5
Ignition Coil 5 harness is open or shorted
Ignition Coil 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0355 Toyota?

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 P0355 Toyota 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 P0355 Toyota code?

Need more information on how to fix the P0355 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0355 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota Models

P0355 2006 Toyota Camry — Ignition Coil 5 Primary/Secondary Circuit
P0355 2007 Toyota Camry — Ignition Coil 5 Primary/Secondary Circuit
P0355 2008 Toyota Camry — Ignition Coil 5 Primary/Secondary Circuit
P0355 2009 Toyota Camry — Ignition Coil 5 Primary/Secondary Circuit
P0355 2010 Toyota Camry — Ignition Coil 5 Primary/Secondary Circuit
P0355 2011 Toyota Camry — Ignition Coil 5 Primary/Secondary Circuit
P0355 2001 Toyota Highlander — Ignition Coil 5 Primary/Secondary Circuit
P0355 2002 Toyota Highlander — Ignition Coil 5 Primary/Secondary Circuit
P0355 2003 Toyota Highlander — Ignition Coil 5 Primary/Secondary Circuit
P0355 2004 Toyota Highlander — Ignition Coil 5 Primary/Secondary Circuit
P0355 2005 Toyota Highlander — Ignition Coil 5 Primary/Secondary Circuit
P0355 2006 Toyota Highlander — Ignition Coil 5 Primary/Secondary Circuit
P0355 2007 Toyota Highlander — Ignition Coil 5 Primary/Secondary Circuit

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 Toyota Code

1. What are the common symptoms of OBDII code P0355 in a Toyota related to Ignition Coil 5 Primary/Secondary Circuit?

The common symptoms include engine misfires, rough idling, loss of power, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P0355 in a Toyota related to Ignition Coil 5 Primary/Secondary Circuit?

Possible causes include a faulty ignition coil, damaged wiring or connectors, a defective PCM, or a problem with the spark plug.

3. How can I diagnose the issue causing OBDII code P0355 in my Toyota related to Ignition Coil 5 Primary/Secondary Circuit?

Diagnosis involves using a multimeter to test the ignition coil, inspecting the wiring and connectors for damage, and checking the spark plug for signs of wear or fouling.

4. Can I still drive my Toyota with OBDII code P0355 related to Ignition Coil 5 Primary/Secondary Circuit?

It is not recommended to drive your vehicle with this code present, as it can lead to further damage to the engine and catalytic converter.

5. How can I repair OBDII code P0355 in my Toyota related to Ignition Coil 5 Primary/Secondary Circuit?

Repair options include replacing the faulty ignition coil, repairing any damaged wiring or connectors, and ensuring proper spark plug installation.

6. Is it necessary to reset the OBDII code P0355 in my Toyota after repairing the issue related to Ignition Coil 5 Primary/Secondary Circuit?

Yes, it is important to reset the code using an OBDII scanner after repairing the underlying issue to clear the Check Engine Light.

7. What are some preventive maintenance tips to avoid OBDII code P0355 in a Toyota related to Ignition Coil 5 Primary/Secondary Circuit?

Regularly inspecting and replacing spark plugs, ensuring proper ignition coil function, and maintaining a clean and efficient engine can help prevent this code.

8. Can a DIY enthusiast fix OBDII code P0355 related to Ignition Coil 5 Primary/Secondary Circuit in a Toyota?

Yes, with the right tools and knowledge, a DIY enthusiast can diagnose and repair this issue, but it is recommended to consult a professional if unsure.

9. How long does it typically take to repair OBDII code P0355 related to Ignition Coil 5 Primary/Secondary Circuit in a Toyota?

The repair time can vary depending on the exact cause of the issue, but it usually takes anywhere from 1 to 3 hours to diagnose and fix the problem.

10. Are there any recalls or technical service bulletins related to OBDII code P0355 in Toyota vehicles regarding Ignition Coil 5 Primary/Secondary Circuit?

It's recommended to check with Toyota dealerships or visit the NHTSA website to see if there are any recalls or technical service bulletins related to this specific OBDII code.