AutoCodes – Chevrolet – P0357 2017 Chevrolet Silverado

P0357 2017 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 2017 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.

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Code Popularity 307

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0357 2017 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 2017 Chevrolet Silverado - Ignition Coil 7 Control Circuit - AutoCodes.com — P0357 2017 Chevrolet Silverado Code - Ignition Coil 7 Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0357 2017 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 2017 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 2017 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 2017 Chevrolet Silverado code?

Need more information on how to fix the P0357 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P0357 2017 Chevrolet Silverado Code

What does OBDII code P0357 mean on a 2017 Chevrolet Silverado?

P0357 indicates an issue with the Ignition Coil 7 Control Circuit, often caused by problems with the coil, wiring, or the engine control module (ECM).

What are the common symptoms of code P0357?

Symptoms may include a misfiring engine, rough idling, reduced power, poor fuel efficiency, or the check engine light being illuminated.

What causes the P0357 code to appear?

Common causes include a faulty ignition coil 7, damaged wiring or connectors, a malfunctioning ECM, or a poor electrical connection in the circuit.

Can I drive my Silverado with a P0357 code?

Driving with a P0357 code is not recommended, as it can lead to engine damage, increased emissions, and poor performance.

How do I troubleshoot the P0357 code?

Start by inspecting the ignition coil 7, wiring, and connectors for damage or corrosion. Use a multimeter to test the coil and ensure proper voltage and continuity in the circuit.

How do I fix the P0357 code?

Repairs may include replacing the faulty ignition coil, repairing or replacing damaged wiring and connectors, or reprogramming or replacing the ECM if necessary.

How much does it cost to fix a P0357 code on a 2017 Silverado?

Costs vary, but replacing an ignition coil typically ranges from $100 to $300, while wiring repairs or ECM replacement may cost more.

Can a bad spark plug cause the P0357 code?

While a bad spark plug itself won't trigger a P0357 code, it can contribute to ignition system issues, so inspecting the spark plug is a good idea.

Does P0357 affect only cylinder 7?

Yes, P0357 specifically relates to ignition coil 7, which controls cylinder 7 in the engine's firing order.

How can I prevent the P0357 code from recurring?

Regular maintenance, including inspecting ignition components and ensuring proper connections, can help prevent issues with the ignition coil 7 control circuit.