AutoCodes – Toyota – P0351 2006 Toyota Camry

P0351 2006 Toyota Camry Code - Ignition Coil 1 Primary/Secondary Circuit

Quick Answer

The DIS is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil and one spark plug is connected to the end of each secondary wiring. 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 2006 Toyota Camry 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 8,295
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 31, 2024
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Code P0351 2006 Toyota Camry Description

The DIS is a 1-cylinder ignition system in which each cylinder is ignited by one ignition coil 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 sparks of the spark plugs pass from the center electrode to the ground electrodes.
The 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 on and off the current to the primary coil. 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.
OBDII Code P0351 2006 Toyota Camry - Ignition Coil 1 Primary/Secondary Circuit - AutoCodes.com
P0351 2006 Toyota Camry Code - Ignition Coil 1 Primary/Secondary Circuit

What are the Possible Causes of the DTC P0351 2006 Toyota Camry?

  • 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 2006 Toyota Camry?

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 P0351 2006 Toyota Camry 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 2006 Toyota Camry 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 2006 Toyota Camry Code

1. What does the OBDII code P0351 mean on a 2006 Toyota Camry?

P0351 indicates a malfunction in the primary or secondary circuit of the ignition coil for cylinder 1.

2. What are the common symptoms of code P0351 in a 2006 Toyota Camry?

Symptoms include engine misfires, rough idling, reduced power, poor fuel economy, and the Check Engine Light turning on.

3. What causes the P0351 code to appear in a 2006 Toyota Camry?

Common causes include a faulty ignition coil, damaged spark plugs, wiring issues, a defective powertrain control module (PCM), or corroded connectors.

4. Can I drive my 2006 Toyota Camry with a P0351 code?

Driving with a P0351 code is not recommended, as it can lead to further engine damage and reduced performance.

5. How do I diagnose the P0351 code in a 2006 Toyota Camry?

Start by inspecting the ignition coil, wiring, and connectors for damage or wear. Use a multimeter to test the coil and check for proper voltage and resistance.

6. How do I fix the P0351 code on a 2006 Toyota Camry?

Common fixes include replacing the faulty ignition coil, repairing damaged wiring, cleaning or replacing corroded connectors, or replacing the PCM if necessary.

7. How much does it cost to repair a P0351 code on a 2006 Toyota Camry?

Repair costs vary, but replacing an ignition coil typically ranges from $100 to $250, including parts and labor.

8. What tools are needed to troubleshoot the P0351 code on a 2006 Toyota Camry?

You'll need a diagnostic scanner, a multimeter, and basic hand tools to inspect and test the ignition coil and wiring.

9. Can a bad spark plug trigger the P0351 code in a 2006 Toyota Camry?

Yes, a worn or damaged spark plug in cylinder 1 can cause misfires and trigger the P0351 code.

10. What happens if the P0351 code is ignored in a 2006 Toyota Camry?

Ignoring the P0351 code can lead to worsening misfires, engine damage, reduced fuel efficiency, and potential catalytic converter failure.

Discuss the causes and fixes for P0351 2006 Toyota Camry OBDII Code

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