AutoCodesToyota – P0351 2009 Toyota Camry

P0351 2009 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 2009 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 12,196
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 2009 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 2009 Toyota Camry - Ignition Coil 1 Primary/Secondary Circuit - AutoCodes.com
P0351 2009 Toyota Camry Code - Ignition Coil 1 Primary/Secondary Circuit

What are the Possible Causes of the DTC P0351 2009 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 2009 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 2009 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 2009 Toyota Camry code?

Need more information on how to fix the P0351 2009 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the 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 2009 Toyota Camry Code

What does OBDII code P0351 indicate on a 2009 Toyota Camry?

OBDII code P0351 indicates an issue with the ignition coil 1 primary/secondary circuit, meaning there may be a problem with the ignition coil for cylinder 1 or its associated wiring.

What are the common symptoms of P0351 in a 2009 Toyota Camry?

Common symptoms include rough idling, misfiring, reduced engine power, difficulty starting, and an illuminated check engine light.

What could cause the P0351 code to trigger in a 2009 Toyota Camry?

Causes can include a faulty ignition coil, damaged wiring or connectors, a malfunctioning engine control module (ECM), or issues with the ignition circuit.

How can I diagnose the P0351 code in my 2009 Toyota Camry?

To diagnose P0351, inspect the ignition coil and wiring for damage, test the ignition coil's resistance, and check for any other related trouble codes that may provide additional context.

Can I drive my 2009 Toyota Camry with the P0351 code?

While it may be possible to drive the vehicle, it is not recommended as it can lead to further engine damage, decreased performance, and increased emissions.

What are some repair tips for fixing the P0351 code?

Repair tips include replacing the faulty ignition coil, repairing any damaged wiring or connectors, and ensuring that the ECM is functioning correctly.

Is it necessary to replace all ignition coils if I have P0351?

It’s not necessary to replace all ignition coils, but if one is failing, it may be a good idea to replace them in pairs or all at once to maintain balance and performance.

How much does it typically cost to repair the P0351 code on a 2009 Toyota Camry?

Repair costs can vary widely, but replacing an ignition coil typically ranges from $100 to $300, depending on labor and parts costs.

Can a bad spark plug cause the P0351 code to appear?

Yes, a bad spark plug can cause misfires and other ignition issues, which may lead to the P0351 code being triggered due to increased load on the ignition coil.

Discuss the causes and fixes for P0351 2009 Toyota Camry OBDII Code

  • hai
    i have 2009 camry its problem is while running the engine is off suddenly ,then i check the obd i got p0351,352,353,354.
    so i change the ignition coil 4 piece ,
    but now car will not start
    i checked two times the same code is showing
    can you help me??

  • Check all the fuses, it's not common for all the coils to fail at the same time and stall the engine. It's possible that you have a broken wire (s) from the coils to the ECM

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