AutoCodes – Toyota – P0351 2007 Toyota Prius

P0351 2007 Toyota Prius Code - Ignition Coil 1 Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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: P0351 2007 Toyota Prius indicates Ignition Coil 1 Primary/Secondary Circuit.
Common causes: Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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 4,013

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0351 2007 Toyota Prius Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

OBDII Code P0351 2007 Toyota Prius - Ignition Coil 1 Primary/Secondary Circuit - AutoCodes.com — P0351 2007 Toyota Prius Code - Ignition Coil 1 Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0351 2007 Toyota Prius?

Faulty Ignition Coil 1
Ignition Coil 1 harness is open or shorted
Ignition Coil 1 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0351 2007 Toyota Prius?

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 does this mean?

Code Tech Notes

Ignition Coil "A" refers to coil #1

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0351 2007 Toyota Prius 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 P0351 2007 Toyota Prius code?

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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 P0351 2007 Toyota Prius Code

1. What does OBDII code P0351 on a 2007 Toyota Prius mean?

- OBDII code P0351 for a 2007 Toyota Prius specifically refers to the Ignition Coil 1 Primary/Secondary Circuit malfunction.

2. What are the common symptoms of OBDII code P0351 on a 2007 Toyota Prius?

- Common symptoms of code P0351 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 OBDII code P0351 on a 2007 Toyota Prius?

- The main causes of code P0351 in a 2007 Toyota Prius are a faulty ignition coil, wiring issues in the ignition coil circuit, or a problem with the Engine Control Module (ECM).

4. How can I diagnose the issue related to OBDII code P0351 on my 2007 Toyota Prius?

- Diagnosing code P0351 involves checking the ignition coil, inspecting the wiring harness for any damage, and testing the ECM to identify the root cause of the malfunction.

5. Can I still drive my 2007 Toyota Prius with OBDII code P0351?

- It is not recommended to drive your Prius with code P0351, as it can lead to further engine damage or poor performance. It's best to address the issue promptly.

6. How can I repair OBDII code P0351 on my 2007 Toyota Prius?

- Repairing code P0351 typically involves replacing the faulty ignition coil, repairing any damaged wiring, and resetting the ECM to clear the code.

7. Are there any maintenance tips to prevent OBDII code P0351 in my 2007 Toyota Prius?

- Regular maintenance, such as checking and replacing ignition coils as recommended by the manufacturer, can help prevent code P0351 in your Prius.

8. Is it necessary to reset the OBDII code P0351 after repairing the issue in my 2007 Toyota Prius?

- Yes, it is essential to reset the code after repairing the problem to clear the Check Engine light and ensure the issue has been successfully addressed.

9. Can a DIY enthusiast fix OBDII code P0351 on a 2007 Toyota Prius?

- Depending on your skill level and experience with automotive repairs, fixing code P0351 may be possible for a DIY enthusiast with the right tools and knowledge.

10. How much does it typically cost to repair OBDII code P0351 on a 2007 Toyota Prius?

- The cost of repairing code P0351 on a 2007 Toyota Prius can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.