P0351 2011 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 2011 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.
Code P0351 2011 Toyota Camry Description
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.
What are the Possible Causes of the DTC P0351 2011 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 2011 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 2011 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.
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Frequently Asked Questions about P0351 2011 Toyota Camry Code
1. What does the OBDII code P0351 mean on a 2011 Toyota Camry?
P0351 indicates a malfunction in the ignition coil "A" primary/secondary circuit, which corresponds to cylinder 1 in your 2011 Toyota Camry.
2. What are the symptoms of code P0351 on a 2011 Toyota Camry?
Symptoms include engine misfires, rough idling, reduced fuel efficiency, poor acceleration, and the Check Engine Light turning on.
3. What causes the P0351 code on a 2011 Toyota Camry?
Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a malfunctioning PCM (Powertrain Control Module), or a bad spark plug.
4. Can I continue driving my 2011 Toyota Camry with a P0351 code?
Driving with this code is not recommended as it can lead to further engine damage, poor performance, and increased emissions.
5. How do I diagnose the P0351 code on a 2011 Toyota Camry?
Start by inspecting the ignition coil, wiring, and connectors for damage. Use a multimeter to test the ignition coil’s resistance and check for power and ground at the connector.
6. How do I fix the P0351 code on a 2011 Toyota Camry?
Common fixes include replacing the faulty ignition coil, repairing damaged wiring or connectors, replacing the spark plug, or, in rare cases, reprogramming or replacing the PCM.
7. How much does it cost to fix the P0351 code on a 2011 Toyota Camry?
Repair costs vary but typically range from $100 to $300 for parts and labor, depending on whether the ignition coil or wiring needs replacement.
8. Can a bad spark plug cause the P0351 code on a 2011 Toyota Camry?
Yes, a bad spark plug can overload the ignition coil and trigger the P0351 code, so it’s important to inspect the spark plugs during diagnosis.
9. What tools are needed to diagnose and fix the P0351 code on a 2011 Toyota Camry?
You’ll need an OBDII scanner, a multimeter, basic hand tools, and possibly a wiring diagram for the ignition coil circuit.
10. Does the P0351 code always mean the ignition coil is bad on a 2011 Toyota Camry?
No, the issue could also stem from faulty wiring, a bad spark plug, or a PCM problem, so thorough diagnosis is crucial.
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