P0351 Lexus Code - Ignition Coil 1 Primary/Secondary Circuit
Quick Answer
The P0351 code for a Lexus indicates a problem with the ignition coil 1 primary/secondary circuit. Common causes include Faulty ignition coil, Loose or damaged wiring in the ignition coil circuit, Corrosion or poor connections in the ignition coil circuit. 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 Lexus indicates Ignition Coil 1 Primary/Secondary Circuit.
- Common causes
- Common causes include Faulty ignition coil, Loose or damaged wiring in the ignition coil circuit, Corrosion or poor connections in the ignition coil circuit.
- 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 P0351 Lexus Description
The P0351 code for a Lexus indicates a problem with the ignition coil 1 primary/secondary circuit. The ignition coil is a crucial component in the vehicle's ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine's cylinders. When the ignition coil malfunctions, it can lead to misfiring, rough idling, and decreased fuel efficiency.
Common Causes of P0351 Lexus
- Faulty ignition coil
- Loose or damaged wiring in the ignition coil circuit
- Corrosion or poor connections in the ignition coil circuit
- Issues with the powertrain control module (PCM)
- Spark plug related issues
Symptoms of P0351 Lexus
- Rough idling or engine misfires
- Loss of power or acceleration
- Check Engine Light illuminated
- Decreased fuel efficiency
- Engine stalling or difficulty starting
How to Fix P0351 Lexus
- Diagnose the specific cause of the issue using a scan tool to confirm the P0351 code and conduct further testing if necessary.
- Inspect the ignition coil, wiring, and connections for any signs of damage, corrosion, or loose connections.
- Replace the faulty ignition coil if necessary, ensuring the new coil is compatible with the vehicle's make and model.
- Repair or replace any damaged wiring or connections in the ignition coil circuit.
- Clear the diagnostic trouble codes, reset the Check Engine Light, and test drive the vehicle to confirm the issue has been resolved.
Cost to Fix P0351 Lexus
The cost of repairing a P0351 code in a Lexus can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing an ignition coil can range from $100 to $300, including parts and labor. Additional costs may be incurred if wiring repairs or other components need to be replaced. It's recommended to consult with a trusted mechanic or auto repair shop for a more accurate cost estimate based on your vehicle's make and model. Keep in mind that labor rates can vary, with rates typically ranging from $80 to $150 per hour.
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