AutoCodes – Chevrolet – P0357 2015 Chevrolet Silverado

P0357 2015 Chevrolet Silverado Code - Ignition Coil 7 Control Circuit

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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 Chevrolet Silverado indicates Ignition Coil 7 Control Circuit.
Common causes: Common causes include Faulty Ignition Coil 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 426

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0357 2015 Chevrolet Silverado Description

The ignition system on this engine uses ignition coils with integrated power transistors. The Engine Control Module (ECM) controls the spark event for each cylinder through individual ignition coil control circuits. When the ECM commands the ignition control circuit On, electrical current flows through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM commands the ignition control circuit Off, interrupting current flow through the primary winding. The collapsing magnetic field created by the primary winding induces a high voltage in the secondary winding, which is connected to the spark plugs. The Diagnostic Trouble Code (DTC) will be set when the control circuit commanded by the ECM state does not match the actual state.

OBDII Code P0357 2015 Chevrolet Silverado - Ignition Coil 7 Control Circuit - AutoCodes.com — P0357 2015 Chevrolet Silverado Code - Ignition Coil 7 Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0357 2015 Chevrolet Silverado?

Faulty Ignition Coil 7
Ignition Coil 7 harness is open or shorted
Ignition Coil 7 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0357 2015 Chevrolet Silverado?

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 P0357 2015 Chevrolet Silverado 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 P0357 2015 Chevrolet Silverado code?

Need more information on how to fix the P0357 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0357 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P0357 2015 Chevrolet Silverado Code

What does the OBDII code P0357 mean for a 2015 Chevrolet Silverado?

P0357 indicates an issue with the ignition coil "7" control circuit, which may affect the engine's ability to fire properly on cylinder 7.

What are the symptoms of code P0357 on a 2015 Silverado?

Common symptoms include a misfire, rough idling, reduced engine performance, poor fuel economy, and possible illumination of the Check Engine Light.

What causes the P0357 code to appear?

Possible causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a malfunctioning Powertrain Control Module (PCM), or poor electrical connections.

Can I drive my 2015 Silverado with a P0357 code?

Driving with this code is not recommended, as it can lead to engine misfires, increased emissions, and potential damage to the catalytic converter if unresolved.

How do I diagnose the P0357 code on my Silverado?

Start by inspecting the ignition coil, wiring, and connectors for cylinder 7. Use a multimeter to check for proper voltage and continuity. A scan tool can also help monitor live data for the ignition system.

What should I check first when troubleshooting P0357?

Begin by inspecting the ignition coil for cylinder 7, ensuring it is properly connected and free of damage. Then, check the wiring and connectors for signs of wear, corrosion, or loose connections.

How do I fix the P0357 code on a 2015 Chevrolet Silverado?

Repairs may involve replacing the ignition coil for cylinder 7, repairing damaged wiring or connectors, or reprogramming or replacing the PCM if it is determined to be faulty.

How much does it cost to fix a P0357 code?

Repair costs vary depending on the issue. Replacing an ignition coil typically costs $100-$300, while more extensive wiring or PCM repairs could cost $500 or more.

Can a bad spark plug cause the P0357 code?

While a bad spark plug itself wonâ€™t directly trigger P0357, it can contribute to misfires, so it's worth inspecting the spark plugs and replacing them if necessary.

What tools are needed to fix the P0357 code?

You may need a scan tool, multimeter, basic hand tools, and possibly a wiring repair kit or replacement ignition coil to address the issue.