P0357 2015 GMC Sierra Code - Ignition Coil 7 Control Circuit
Quick Answer
The diagnostic trouble code P0357 for a 2015 GMC Sierra relates to a problem with the Ignition Coil 7 Control Circuit. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil 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
- P0357 2015 GMC Sierra indicates Ignition Coil 7 Control Circuit.
- Common causes
- Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil 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 P0357 2015 GMC Sierra Description
The diagnostic trouble code P0357 for a 2015 GMC Sierra relates to a problem with the Ignition Coil 7 Control Circuit. This code specifically indicates that there is an issue with the electrical signal being sent to the ignition coil for cylinder 7 in the engine. The ignition coil is a crucial component in the ignition system of a vehicle, responsible for converting the low voltage from the battery into the high voltage needed to spark the spark plugs and ignite the air-fuel mixture in the combustion chamber.
Common Causes of P0357 2015 GMC Sierra
- Faulty ignition coil
- Damaged wiring or connectors in the ignition coil circuit
- Poor electrical connection
- Issues with the Engine Control Module (ECM)
- Environmental factors such as moisture or corrosion affecting the components
Symptoms of P0357 2015 GMC Sierra
- Engine misfires
- Rough idling or hesitation during acceleration
- Decreased fuel efficiency
- Engine stalling
- Check Engine Light illuminated on the dashboard
How to Fix P0357 2015 GMC Sierra
- Begin by diagnosing the specific cause of the issue using a diagnostic scanner to read the trouble code and identify the faulty component.
- Inspect the ignition coil for cylinder 7 to determine if it is functioning correctly. Replace the ignition coil if it is found to be faulty.
- Check the wiring and connectors in the ignition coil circuit for any signs of damage or corrosion. Repair or replace any damaged components as needed.
- Test the electrical connection to ensure it is secure and providing proper voltage to the ignition coil.
- Clear the trouble code from the vehicle's computer and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P0357 2015 GMC Sierra
The typical repair costs for addressing an ignition coil control circuit issue like P0357 can vary depending on the specific cause of the problem and the labor rates in your area. On average, the cost of replacing an ignition coil can range from $100 to $300, while diagnosing and repairing wiring or connector issues may add to the total cost. It is recommended to consult with a trusted mechanic or auto repair shop to get a more accurate estimate based on your vehicle's make and model. Keep in mind that labor rates can vary between $80 and $150 per hour, so it's advisable to inquire about local rates before proceeding with the repair.
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